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JANUARY 2012 VOL 3, NO 9

The effectiveness of external financing sources on economic growth

case of the developing countries of the MENA Region

Miss. Manelle LAHDHIRI Doctor in Economic Sciences, Faculty of Economic Sciences and Management of Sousse

University of Sousse -TUNISIA Mr. Mohamed Amine HAMMAS

Conference Master, Faculty of Economic Sciences and Management of Sousse University of Sousse -TUNISIA

Abstract Face to the difficulty of achieving the Millennium Development Goals (MDGs), due to lack of sufficient funding and the dramatic drop of the Official development assisstance (ODA). One wonders about how to overcome this decline through the exploitation of other international financing resources for development, for example through the use of financial transfers from emigrants (remittances) and foreign direct investment (FDI). Building on this new basis of international development finance and given the trend decline in ODA, we seek in this work to test the effectiveness of the external financing resources on economic growth in developing countries of the MENA region . JEL Classification :F35 ;B2 ;F22 ;F23 ;F24

Key words: Economic growth, official development assistance; remittances, foreign direct investment, developing countries and MENA region .

1. Introduction The MENA region is mainly composed by developing countries where remittances are a significant external financial flows. Given this importance of the remittances (WR) and given the decline of the official development assistance (ODA) , international financial institutions (IMF and World Bank) are wondering to what extent remittances from emigrants they could serve as a source of financing for economic growth in these countries.

According to the World Bank, these financial flows have largly increased in this region , they spent from 861 to 4759 million between 2000 and 2007. This increase has continued even in 2008, followed by a slight decline in 2009 and then a return to increase in 2010.

However; during the same period ; the Official Development Assistance (ODA) has crossed a crisis related to a combination of several factors24. This crisis has led to the questioning of ODA fundamentals , accompanied by a sharp fall of its flows to developing countries.

24As the changing environment marked by the end of the Cold War and the problem of indebtedness growing countries receiving assistance.



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This challenging environment has revived the debate about the effectiveness of ODA by the publication of a World Bank’s report : "Assessing Aid" based on the work of Burnside and Dollar (1997-2000).This works supports the thesis that the effectiveness of ODA’s impact on economic growth depends on economic policies quality of the ODA’s receiving developing countries.Thus, this work paves the way for selectivity criteria 25 that should be applied to these countries.

However ; despite this conditionality attached to ODA flows by the criteria of selectivity ; ODA’s efficiency isn’t always achieved. Indeed, its impact remains are limited both in terms of growth and in terms of reducing poverty26

This thesis has been adopted by the International Financial Institutions27(IFIs), witch encourage the financing of the MDGs through the use of the remittances, and witch announce that remittances have grown faster than FDI. Therefore; they argue for the assumption that ; if the remittances wich are sent to their families living in the devlelopping countries ; are effectively and productively used by these countries, they could be an effective factor in reducing poverty and stimulating economic growth.

However, all the studies mentioned above have been criticized because of their limitation to test the impact of one extern financial resource on promoting economic growth and development in the receptor country and ignored the potential role of the other sources. Moreover, comparative studies on the effectiveness of the three finacial development resources are poorly theorized. Especially, despite the growing importance of remittances in total international capital flows the relationship between remittances and economic growth has not been sufficiently tested.

Following this finding ; the aim of our research is to determine what would be among these three external resources of financing development ; the most effective and / or what would be the combination of these sources, which would be the most optimal to support economic growth and development in developing countries in the MENA region.

To do this, we construct a new model that multiplies the resources of international capital flows to identify the effect of their mixing on stimulating economic growth and to show those remittances; both through formal channels and informal channels28 ; could be a significant source of development of finance of developing countries the MENA region.

25This principle states to give more ODA to developing countries who’ are making political, economic and institutional reforms in order to improve their "good governance ". The basic idea is that improvement efforts of "good governance" greatly increases the productivity of ODA, this same productivity is insignificant or even negative in poorly governed countries (World Bank, 1998;Burnside and Dollar, 2000 & 2004). 26 Jacky Amprou et Cauvet Lisa, (2007), “Débats sur l’Efficacité de l’aide : fondements et nouveaux enjeux ”, Agence française de développement, 2007. 27 The World Bank and FMI 28 Informal channels of the remittances: Such transfer eludes official statistics and does not account banking, especially in terms of profit, they are items which are directly or through stakeholder informal (friends, family, hawala, etc)...



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The outline of this paper is as follows: Section 1 shows the three sources of international capital flows, and describes their evolution over the past two decades in developing countries of the MENA region.In section 2 we review the theoretical and empirical literature of ODA, remittances and FDI’s roles in financing the development in the developing countries. Empirical results are presented and discussed in Section 3.

2. Sources of external financing development Under the current debate on financing the Millennium Development Goals (MDGs) and on their achievement in developing countries of the MENA region , three main sources of external funding are preferred by the IFIs: remittances (WR), official development (ODA) assistance and foreign direct investment (FDI). 2.1. The remittances Remittances have been increasingly important because they constitute a stable source of funding for all developing countries, especially those from the MENA region. The new data show that remittances officially recorded in the destination developing countries developing countries have now reached $ 307 billion. Indeed; because of their quantities to the developing countries; remittances have become increasingly essential as the IFIs, who regard them as a potential source of external financing for development.These remittances have reached significant levels in all regions of the world and contribute to financal growth at different levels from one region to another. According o the World Bank, these flows will increase by 6% in 2010 to $ 325 billion, 6.2% in 2011 and 8.11% in 2012 to $ 374 billion dollars. The flows of the remittances from migrants to developing countries are as follows: Table No 1:

According to this table, we note that the MENA region attracts attention with the highest rate of 1.6% as a percentage of GDP and ranks first on the list of beneficiary developing countries from remittances.The World Bank predicts an increase subsequently. These forecasts are represented in the table below:



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Table No 2:

Source: Author’s calculation based on data from IMF Balance of payments Statistics Yearbook 2008 and Data realises from central banks, national statistical agencies, and Word Bank country desks

It should be noted that the MENA region has indeed had a significant increase in remittances in recent years; however; this development differs from one country to another, Lebanon, Jordan and Egypt are the countries that have received benefits from these flows as outlined in the following diagram.



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However , the data already presented; are underestimated and don’t correspond to the exact mount of transfers sent by migrants to their countries.This reflects the fact that the flow of remittances recorded by the IMF in the Balance of payments are only part of what is actually

transferred, because they considered only the transfers sent to developing countries through e channelsofficiels29. This accounting therefore neglects the remittances through informal channels, because this type of transfers eludes official statistics and does not require a bank account, especially for he bénéficiaires30.Thus, by their volume, remittances could be a potential source of external financing in many developing countries of this region.It should be remembered that remittances from migrants include three types of monetary transfers between countries, wich are reported by the International Monetary Fund (IMF) in its annual statistical yearbook of the balance of payments. They are remittances by migrant workers, compensation paid to employees and remittances migrants31.

The international organization of migration32(IOM) defines remittances as "The remittances that migrants make to their destination country."Remittances have become a popular subject in the literature on external financing development and economic growth, because of their size and their potential to promote economic growth in developing countries. On this basis, the developing countries in the region MENA is an example of this potential evidence.Firstly, due to the fact that remittances have continued to increase either through official channels or through unofficial channels; and secondly; because of the increased number of migrants from the MENA countries, especially to countries of the European Union.

This explains the fact that four developing countries in the MENA region belong to the list of the top beneficiaries in terms of the share of transfers in GDP in 2008 and in terms of transport volume U.S. dollar in 2009, as presented by both charts below.

29 Official channels: include bank transfers 30 Op cit n° 8 p2 31 OCDE (2009), ‘perspectives des migrations internationales SOPEMI 6 2009 32 IOM (2005) (International Organization for Migration), World Migration 2005. Geneva.



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2.2. The official development assistance

The official development assistance (ODA) includes grants and loans to developing countries whichare given to privileged financial conditions imposed by public agencies of the Organization for Cooperation Economic Development (OECD) met in the Development Assistance Committee (DAC).

According to this committee, ODA represents all inputs and resources which are provided to developing countries, including the grants which are conditioned by the following criteria: (i) ODA must be provided by government agencies, including state and local governments or organizations acting on behalf of public agencies. (ii) ODA must have as objective that’s the economic promotion and development and improve the living standards in developing countries. ODA can be either bilateral (if they are intended directly to a developing country) or multilateral when they pass through an international organization, such as the World Bank or the European Commission. This ODA, comes entirely from DAC member countries through two channels:

The first is directly given by the Member States as part of their bilateral aid.

The second is managed by the multilatéral institutions 33.

33 Multilateral institutions: the World Bank and International Monetary Fund.



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Bilateral ODA represents about two-thirds of ODA and multilateral assistance accounts for the rest. This assistance has declined remarkably during the last decade. Indeed, official development assistance granted by 22 countries member of OECD belonging to the Assistance Committee (DAC), which totaled $ 103.7 billion in 2007, are down from 104.4 billion in 2006 to 107.1 billion dollars in 200534This decline in official development assistance (ODA) in recent years has affected all developing countries without exception. This decline began in the 1990s, following the crisis of legitimacy of the ODA and it is largely explained by the strategy implemented debt relief following the two extraordinary agreements Paris35. In developing countries in the MENA region, the fall in ODA has been remarkable and has been significantly accompanied by a large increase in the flow of remittances to these countries especially during the period 2000-2008, as shown in the following graph:

2.3. The foreign direct investment

The International Monetary Fund (IMF) defines foreign direct investment (FDI) as "the investments done by a resident entity in one economy (direct investor) in order to acquire a lasting interest in an entrprise resident in another economy (the company direct investment).

34 According to the report of the World Bank : « Global Development Finance » published in 2008 35Paris‘s extraordinary agreements: ODA, debt and international trade placed in the center of the High level Meeting on Financing for Development June 27 2005; AG/10364 press release.



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The lasting interest implies the existence of a long-term relationship between the direct investor and the company , and the investor exerts a significant influence on the management of this company. The direct investment comprises not only the initial transaction establishing the relationship between the investor and the entrprise, but also all subsequent transactions between them and among related entrprises, whether or not incorporated and therefore possesses a personal separate legal entity. "

FDI represents all the resources (inputs to the capital; endowments, loans, making available cash, trade credit or reinvested earnings) that a direct investor leave available to companies with which there is a direct investment relationship.The OECD defines Foreign Direct Investment as follows: "FDI is an activity in which a resident Investor in one country obtains a lasting interest and a significant influence in the management of an entity resident in another country. "So ; in general; FDI is an important form of international capital movements, through which the business of a country creates or develops a subsidiary in another country. According to IMF data, foreign direct investment (FDI) in developing countries reached a record $ 325 billion in 2006 up by 44 billion dollars compared to 2005.Inflows of foreign direct investment reached 2.9% of GDP of developing countries in2006, up 2.3% in

2003 but still below the peak of 3.1% in 1999.For developing countries belonging to the MENA region, foreign direct investment (FDI) continued to influence the economic growth in recent years. In this region, FDI continued to flow at high levels, about $ 45 billion, slightly down from a record $ 52 billion in 2006.

3. The impact of financing development ressources on the promotion of economic growth : review of the empirical litterature

A large empirical literature has focused on the study of the effect, that can lead the external financing resources of development to the promotion of economic growth. Thus,



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each source has a specific impact on promoting growth. However; according to the previous studies ; this impact is tempered by economic policies that determine its effectiveness.

3.1. The impact of the remittances on economic growth

Workers Remittances are considered by some authors of the migration’s word Bank rport36 as a significant source of external finance for many developing countries.

Indeed, given the growing trend in the amounts of money sent by migrants to their origin country some economists are interested in studying the effect of these funds to stimulate economic growth in recipient countries.

The development economists from the World Bank including Dilip Ratha and Sanket Mohapatra think that international migration can generate welfare gains significant for migrants, both for origin and destination countries, to reduce poverty.

These remittances are an important external resource for financing development. Their amounts exceed official development assistance 37.The importance of remittances from emigrants for developing countries emerges more clearly in proportion to Gross Domestic Product (GDP) of the recipient countries. Indeed, according to the Word Bank’s data38, emigrants’ remittances can reach between 10% and 30% of GDP in some recipient countries.

It is the same for most developing countries belonging to the MENA region. The table below shows the remittances as percentage of GDP to some developing countries in this region. Table No 3

Remittances % GDP

Algeria

2.2%

Djibouti 3.7%

Egypt. Arab Rep.

5.0%

Jordan

20.4%

Lebanon

22.9%

Morocco

8.3%

36 World Bank, 2006, Global Economic Prospects: Economic Implications and Migration, (Washington, DC). 37 Dilip Ratha and Sanket Mohapatra,(2007), “Development Prospects Group”, The World Bank Washington D.C. 20433November 26, 2007 38 Op.cit n°3 p 2.



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Syrian Arab Republic

2.4%

Tunisia

5.0%

Gaza 14.7% Yemen. Rep.

6.7%

Based on previous studies on economic growth, few studies have tested the role of remittances on economic growth and reducing poverty. Among these studies were notably those of Lucas and Stark (1985) Adams (1991), Sander (2004) Gubert and Azam, 2005 and Adam (2006). In fact, it is noted that the macroeconomic effects have been accounted for at least two reasons:

A theory suggests that these transfers are mainly used for consumption and therefore they have a little impact on investment. Therefore, remittances are considered as transfers of compensation for family members who have lost skilled workers due to migration. However, Stahl and Arnold (1986)39 argue that the use of funds for consumption can have a positive effect on growth because of their possible multiplier effect. In addition, these transfers respond to investment opportunities in the country of origin. These possibilities depend on charitable motives or insurance.

Moreover, many migrants invest their savings in small businesses, real estate or other assets in their own country because they know local markets better than those of their host countries.Adams and Page (2005), Insights (2006), Siddiqui and Kemal (2006) and Gupta, Pattillo and Wagh (2009) believe that remittances have positive effects on the welfare and growth. And they also directly alleviate the poverty levels, improving the living standards of families receiving these funds. Similarly, remittances have a direct and adverse macroeconomic indirect. Faini (2002) and Ang (2007) found that the impact of remittances on economic growth is positive.

Indeed Faini argues that transfers overcome market imperfections and capital enabling migrant households to accumulate positive assets.

Ang has referred the identification of the relationship between workers’ remittances and growth at national and regional level and found that remittances affect positively and significantly to economic growth.

Ang and al (2007) concluded that workers' remittances should be introduced to the added value of economic activities and investment, which are considered the main sources fundamental to the 39 Stahl, Charles W. and Fred Arnold, 1986), “Overseas Workers’ Remittances in Asian Development,” International Migration Review, 20 (4): 899-925.



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development and growth. By cons, it should be noted that critics of emigrants’ remittances reckon that impact on Economic growth is not significant and even negative.

This is the case of Barajas, A., Chami, R., Fullenkamp, C. Gapen, M. and Montiel (2009), who have recently found that the effects on growth are insignificant or even negative. That’s opposed what is expected by some economists of development thinking in particular that remittances are similarto foreign direct investment and capital inflows and ODA Official development in their effects on growth.

Thus, much of the current empirical literature on remittances from emigrants was largely concentrated .On their effects on macroeconomic development and more specifically on economic growth, although these studies have led to controversial conclusions.

This is the case Chami R., Fullenkamp, C. and Jahjah, S. (2003)40 who have shown through their study covering 113 countries that remittances have had a negative effect on economic growth 41 which is caused by asymmetric information and uncertainty of remittances that limit their ability to help the promotion of the investment in human capital in developing economies.

According to the IMF’s study (2005)42 on the effect of remittances on economic growth for 101 developing countries over a long period (1970-2003), there is no link between remittances and growth in GDP per capita or between transfers funds and other variables such as enrollment rates or investment.

This result weakly finding stems from the fact that remittances may behave cyclical manner with respect to growth.It follows from the various studies cited above, that consensus on the effectiveness of remittances is far from being established. The implication of the findings of these studies is that other policies can be used to increase the rate of growth in the long term, instead of depending solely on increased remittances. 2.2. The impact of ODA on economic growth Given the importance of development assistance for both donors and for beneficiaries, the literature on this concept is voluminous. In practice, the method for evaluating the ODA’s economic effectiveness is to meet the question: "Has the flow of ODA have been broadly associated with improved economic performance of recipient countries of these flows and more specifically, is that are they associated with economic growth? »

40 Chami, R., Fullenkamp, C. & Jahjah, S. (2003), “Are Immigrant Remittances Flows a Source of Capital for Development?”, IMF Working Paper, No. 189. 41 In fact, they concluded that the income of emigrants 'remittances allow countries to reduce receptionists their own work for developing countries. 42 IMF – International Money Fund, (2005), World Economic Outlook: Globalization and External Imbalances, Washington, DC.



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The utility of ODA in promoting economic growth has been a subject of controversy since Rosenstein-Rodan (1943). Subsequently, during the last two decades, "the usefulness of ODA" has been the topic of several empirical studies based on panel data of developing countries receiving ODA, and the result from these studies lead to a consensus that has formed arguing that "ODA is useful" (ODA works) However, the usefulness of ODA to boost growth in developing countries has been a subject of several controversies.

First, based on the work of Chenery and Strout (1966), the criteria of ODA allocation is based on the level of need otherwise the marginal effectiveness of aid depends on the country's deficit (two-gap model), connected to two constraints: lack of savings and foreign trade deficit.

Then, Hansen and Trap (2000) have done their work in an overview of empirical analyses43 developed over the past 30 years, with some regressions on a group of countries to assess the effectiveness of foreign ODA. And from 131 regressions, the authors lead to the following results:

(i)ODA increases aggregate savings. (ii) ODA increases investment. (iii)ODA has a positive effect on the rate of economic growth, when pulled by capital accumulation.

Nevertheless; the Boone’s (1994-1996) study44 ; which focused on these relationships has shown that ODA has no impact on investment or growth in the neoclassical model. This finding was drawn from their regressions on a sample of more than 90 countries covering a period of 20 years.

And following the legitimacy crisis of the ODA ; that has occurred during the 1990s; a new generation of studies on the ODA’ s effectiveness seems to focus on the relationship between aid, the economic policies and economic growth, while trying to identify factors whom generate the effectiveness of ODA.

Thus, those studies45 succeeding Boone were based on relationships rather standard growth; they added support as a fraction of GDP to analyze its effectiveness. Unlike Boone (1994), these studies found a positive impact of aid on growth. This is the case of Burnside and Dollar’s study (1997-2000)46, which was developed while the ODA is down sharply. This analysis was a central to the debate on the effectiveness of ODA24. The contribution of their work marks a real turning point in studies on ODA since these authors address firstly, the question of favorable 43 Henrik Hansen and Finn Tarp, (2000), “Aid and Growth Regressions”, CREDIT Research Paper No. 00/7. 44 Boone, P., (1996), “Politics and the Effectiveness of Foreign Aid”, European Economic Review42:289-329. 45 Including Hadjimichael (1995), and Durbarry (1998), Lensink White (1999), Burnside and Dollar (2000). 46 Burnside, C., and D. Dollar, (2004), “Aid, Policies and Growth: Revisiting Evidence”, Policy Research Working Paper 3251. World Bank. Washington, D.C. Cassen, R., and Associates. 1994. Does Aid Work? 2 nd ed. Oxford: Clarendon Press.



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macroeconomic conditionalties to greater efficiency help; secondly; they defend and support recommendations expressed in the report "Assessing Aid"published by the World Bank.

Burnside and Dollar think that the ODA’s effectiveness in terms of growth depends on the quality of economic policies implemented by developing countries. Their conclusion is based on an econometric work in which they estimate the coefficients of growth equations including an ODA’s variable in interaction with indicator of economic policy.

They hypothesize that the impact of foreign ODA on economic growth of developing countries is conditioned by economic policies that influence growth. They found that the interaction between ODA and a policy index47 (Policy Index) is statically positive.This index policy is obtained through their regressions. (See Annex 1 and Annex 2) Similarly, the impact of ODA remains limited both in terms of growth in terms of reducing poverty.

Among the economists; who have criticized this conditionality: Chauvet and Guillaumont (2001) and Collier and Dehn (2001); defend the thesis that the developing countries are structurally vulnerable so that other factors may influence the ODA’s effectiveness terms of economic growth.

These additional factors may be shortcomings in the ability to absorb ODA (Hansen and Trap 2000-2001); the volatility of ODA flows; the structural vulnerability of the developing countries to external shocks (Guillaumont and Chauvet, 2001), the state of country's poverty (Collier and Dollar 2001), the level of borrowing of the twin deficits (Chenery and Strout,1966) and the existence of a post-conflict situation (Collier-Hoeffler 2004).

The factors listed above illustrate the rich debate on the determinants of ODA’s efficiency in promoting economic growth and selectivity conditions applied in the allocation of aid Therefore, several empirical studies are born each seeking empirically the impact of a factor influencing the effectiveness of ODA. Among the most relevant works, those of Chauvet and Guillaumont (2001), who think that vulnerability is a factor that may influence the ODA’s effectiveness.

Thus, they have argued that this effectiveness depends on environmental factors. They tried to show that the ODA will help to mitigate the negative influence of vulnerability due to the External shocks in many developing countries. They tested the following hypothesis: the worst environment, have the most need for assistance, and the marginal effectiveness of ODA will be the highest.

47 The index implies that the marginal effect of ODA on growth depends on the quality of policies economic.



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In addition, they believe that the work of Burnside and Dollar limits48 present the following:

• The ODA does not differ from other financial flows. • The ODA’s conditionality creates a problem of endogeneity between aid and political

support to take into account. • The selectivity’s argument is ambiguous: the ODA isn’t effective if the policy isn’t

good.This argument will only be moral and assistance will be the reward of good policies.

The ODA is thus presented as being an incentive to adopt good policies where the argument of selection opens to debate.

Their new assumption is: a country that faces shocks (durable or transient), does eed assistance, insurance, to avoid the interruption of its growth process. The ODA will be more effective in these countries, since it allows absorbing the negative effects induced by shock contributes to the defense of growth. And in this context they suggest the following findings: -ODA is a support of good policies (planned as a reward / incentive) -ODA is a tool to cope with the shock / vulnerability (as planned insurance scheme)

To justify what these findings,P. Guillaumont and L. Chauvet introduced a regression in their vulnerability’s vector49. The factors listed above illustrate the rich debate on the determinants of the ODA’s effectiveness in promoting economic growth and selectivity’s conditions in the allocation of this aid.

2.3. Foreign direct investment and economic growth

The growth of foreign direct investment flows to developing countries and especially those from the MENA region during the last decade, growing to wonder on the potential role of these investment flows in stimulating economic growth. In recent economic literature, much attention has been devoted to the impact of FDI on economic growth of the host country of investment.

Theoretically; in the neoclassical economic growth50; increased volumes of FDI’ efficiency in

48 Lisa Chauvet and Patrick Guillaumont (2003), ‘‘AID and growth revisited : Policy,Economic vulnerability and Political Instability’’ , CERDI, CNRS, Université d'Auvergne E 2003.27 49The vulnerability has three dimensions: the magnitude of potential shocks that countries face and their exposure Shock-their ability to react to these shocks 50 According to Borensztein E., Gregorio, J., & Lee, J. (1998),''From How does foreign direct investment affect Economic Growth.''Journal of International Economics, 45 (1) p 135.



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promoting growth is done by generating distribution technology in developing countries receptionist investment.

According to Balasubramanyam and Sapsford (1996) and De Mello(1999),"FDI is a composite bundle of capital stock, know-how and technology, and may consequently increase the existing stock of knowledge economy in host countries through training, skills development, disseminating the introduction of alternative, management practices and organizational arrangement.

Blomstrom M., Lipsey, R., & Zejan, M. (1996) find that the evolution of FDI has empirically a positive effect on the growth of receiving countries, because using the FDI inflows into a country allow developing countries to make the exchange with other countries.

UNCTAD (1999) finds that FDI can have either a positive or a negative effect on growth. It depends largely on variables that are introduced into the equation to test the impact of these investments.These variables can include the initial GDP per capita, level of education, the ratio domestic investment, political instability, terms of trade, the black market and the state of financial development.

Borensztein E., Gregorio, J., & Lee, J. (1998), suggest that the effects of FDI on growth vary in the absorptive capacity of the country. Their analysis is based on the fact that the level of human capital determines the capacity to adopt foreign technologies.

Thus, large endowments of human capital are assumed to induce high levels of growth economic, given the amount of FDI. This hypothesis is tested by their empirical findings. They also suggest that countries must have a minimum stock of human capital in order benefit from the positive effects of FDI.

Durham (2004) fails to identify a positive effect generated by FDI on growth, but rather suggests that this effect is subject to the "technological absorption capacity of home countries, as alleged by Borensztein, E., Gregorio, J., & Lee, J. (1998).However, there is anecdotal evidence to suggest that the beneficial effects of FDI are notnecessarily related to the absorption capacity.

For example, Bende-Nabende, A., Ford, J., Santoso, B., & Sen, S. (2003) find that the direct long-term impact of the FDI on growth is positive and significant for relatively less developed, such as the Philippines and Thailand. By cons, this effect is negative in more economically advanced countriesas Japan and Taiwan.

However, the impact of FDI on growth remains controversial in empirical an study that’s in theoretical studies. Although some studies find a positive impact of FDI on economic growth, others detect a negative relationship between these two variables.



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Empirical studies presented above show that the effect of FDI on economic growth is inconclusive. The role of FDI can be positive, negligible or even negative depending on economic institutions, and technological conditions of the receiving country.

This shows that the results of studies that have examined the separate analysis of the relationship between each external sources of funding and economic growth are limited and can be improved by studying the effect of mixing these three sources. That's what we intend to test later in this article.

3. Empirical analysis of the effectiveness of external financing sources on economic growth in developing countries

Our study aimed at identifying the contribution and effectiveness of the three main sources of funding external development in promoting economic growth. The three sources of external funding are preferred by financial institutions international, namely: the official development assistance, remittances and foreign direct investment.

It should be noted that several empirical studies have attempted to measure the impact of each of these external financing sources on economic growth in developing countries.

However, these studies have been criticized because of limitations in testing the impact of a single source to promote growth and economic development of developing countries receiving this source while ignoring the role that could the other source have.

Indeed, despite the diversity of studies on the positive impact played by the sources in developing countries, the effect of the integration of remittances has not been adequately tested. Given this criticism, and in order to monitor the impact of these various sources on the promotion of economic growth of countries in our sample.

We also consider the traditional resources of economic growth. We use fixed effects and random models methods to estimate the impact of the external capital flows and the traditional resources. This method will allow us to identify their contributions to economic growth.

Thus, in our study, we will estimate the contribution of the three external financial resources(The official development assistance (ODA foreign direct investment (FDI) and remittances (wr)).And the three traditional sources The gross fixed capital formation as a percentage of GDP (GCF), the terms of trade index(TOT) and the enrollment rate in secondary (SC). The promotion of economic growth.

To do this, we will first introduce the external sources of financing for development. Subsequently, we introduce the traditional explanatory variables of economic growth one after the other. And finally, we will build a new model that multiplies the external financing sources and the traditional sources of economic growth.



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3.1.Sample and variables Our estimate will be conducted on a sample composed of 13 developing countries belonging to MENA51 region and beneficiaries of official development assistance from the Committee's list of aid Development OECD / DAC.

The three extern capital flows are52:

• Remittances (wr): Are defined as current private transfers from migrant workers living in the host country for more than a year to recipients in their country of origin.

• Foreign direct investment (FDI): Are defined as capital flows in which an enterprise of one country creates or develops a subsidiary in another country.

• Official development assistance (ODA): Represents grants or loans on preferential financial terms to developing countries by bodies of the Organization for Economic Cooperation and Development (OECD) gathered in the Development Assistance Committee (DAC).

The other traditional sources of economic growth are:

• The gross fixed capital formation (Gross fixed capital formation) (gcf):GCF includes land and property acquisitions, purchases of plant, machinery and equipment, and construction of buildings, infrastructure and equipment.

• The index of terms of trade in goods net (2000 = 100) (tot) is calculated as the ratio of the indices of export unit values relative to unit value indices for imports, measured relative to the reference year.

• The enrollment rate in secondary (sc): Is the ratio of total enrollment, regardless of age, compared to the population of age group that officially corresponds to a level of education. Secondary education completes the provision of basic education that began at the primary level.

To determine the reactivity of the annual growth rate of GDP compared to income of remittances, flows of foreign direct investment, official development assistance to development and three other conventional sources of economic growth defined above, we use panel data on the main exogenous factors including:

Lwri, t: Denotes the log of remittances from migrant workers as a percentage of GDP in the country i at the time t.

51 We will be limited to data on only 13 developing countries in the region of MENA; there is no considered Gaza and Iraq, although they benefit from high flows in remittances, lack of availability data. 52 Three basic factors in our estimation.



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Recent literature states that there is a positive impact of remittances on economic growth. This study will explore the overall impact on economic growth in MENA region .

Lfdi i, t: Denotes the log of the net inflows of foreign direct investment as percentage of GDP of the country i at the time t .

This impact has been fully studied, and among economists who argue for an effect called positive and significant economic growth were particularly Blomstrom M., Lipsey, R., & Zejan, M. (1996), Hansen and Rand (2006); de Mello, (1999).

LODAi ,t: denotes the log of the amount of aid received as a fraction of GDP for the period i t (Offical net aid per capita Received:% of GDP). It should be noted that supporters of aid (including Chenery and Strout, 1966;Papenek, 1973;Levy, 1987; and Islam, 1992; Fayissa and El-Kaissy, 1999) argue that aid flows are necessary for economic growth in developing countries.

However, the opponents of ODA (Heller 1975 and Boone, 1994) stipulate that these external capital flows can generate a negative effect on domestic savings and economic growth in developing countries.

And in this context several empirical studies have emerged focusing on factors that may influence the effectiveness of ODA. Among these studies, the work of Burnside and Dollar (1997-2000) those are central to the debate on factors causing the effectiveness of aid. The idea developed by them and defended by the World Bank report Assessing Aid (1998) is that the effectiveness of aid on growth depends on the quality of the institutional and political environment. The log of ODA, the log of WR and the log of FDI are used to capture the effect of these three sources of funding development on economic growth.

Lgcf: is the log of gross fixed capital as a percentage of real GDP used as a proxy for capital investment physique53.

Ltot: is the log of the term of trade for each country in the sample, measured by the ratio of export to import price index to capture the impact of trade or economic openness on economic growth.

Lsc: is the log of enrollment in secondary education as a measure of investment in human capital that has a positive effect on economic growth (Schultz, 1980; Romer, 1986; Lucas, 1988, and Barro, 1990).

These three log are used to capture the effect of three traditional sources on economic growth 53 Our estimate is based on empirical studies in the context of the new theory of growth (Lucas, 1988; Barro, 1990, Benhabib and Spiegel, 1994, Grossman and Helpman, 1991, Barro and Sala-i-Martin, 1992b; Barro and Lee, 1994, and Temple, 1999).



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gi, t :is our endogenous variable is represented by the annual growth rate GDP of the

country i at time t (GDP annual growth).

4. Specification and estimation issues

Our model is based on panel data. The panel data are used to monitor an individual effect i (i = 1

to N) over a period T (t = 1 to T). Data are doubly indexed. We note as well, ity it itx b µ= + ,

where iα have represented the effect of specific countries and itε is an error term. Our model is based on panel data witch has the advantage of addressing the joint common and specific effects. However, models based on panel data raise the problem of the correct specification of the effect that is either common or specific. This first necessary to distinguish the specific effects and the common effect. To perform the regressions, two possibilities must be taken into consideration: fixed effects estimation (MEF) or random effects (MEA). The fixed effects estimates are calculated based on differences within each country and through time. Indeed, the individual effects specific to each country are represented by deterministic constants. We do not care about the difference in average countries against each other. But we are interested in the variation of the estimator coming from the name "Within" estimates of random effects are the most efficient, since they incorporate individual information across countries and across periods. Thus, we use only the interindividual’s variability which is based on the calculation of average individual. She locates the position of individual compared to the individual average position. We will adopt the model wich considers economic growth as measured by the annual growth rate of GDP according to two categories of variables:

Sources of financing for development including: direct investment inflows (FDI), remittances from emigrants (wr) and official development assistance (ODA)

The traditional sources of economic growth that is the gross fixed capital percentage of GDP (GCF), the index in terms of trade (TOT) and the enrollment rate in secondary (SC). Our model is then written as follows:

(g)it=αi+α1log(fdi)it+α2log(wr)it+α3log(oda)it+α4log(grcf)it+α5log(sc)it+ α5log(tot)it+ εit

5. Estimation

Our model is based on panel data witch has the advantage of addressing the joint common and specific effects. However, models based on panel data raise the problem of the correct specification of the effect that is either common or specific. It is first necessary to distinguish the specific effects and the common effect.



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5.1 Existence’test of specific effects This is a test of homogeneity constants αi assuming bi=b (the coefficients explanatory are assumed constant). Under the null hypothesis, the sample is homogeneous and there only a common constant and no individual effect. Thus,

0 1 2: .... ...i NH α α α α= = = = = . It is remarkable for the regressions: (1), (2), (3) and (5) of the table below, that Fisher's test allow us to accept the null hypothesis that the panel is homogeneous since the p-value is greater than 5%. It therefore asserts that there was no specific effect of the countries. Thus it affects OLS estimation. However, for the regression in column (4), it should be noted that Fisher's test allowed us to reject the null hypothesis that the panel is homogeneous since the p-value is less than 5%. It thus affirms the existence of individual effects. In this case, the question is how these effects should be specified?This amounts to answering the following question: Should we accept the hypothesis of randomness or otherwise the hypothesis of fixed effect? It examines the model and sees its nature, that is to say, if the fixed effects (Estimator within) or random (between estimators).The choice between these two effects is done through the Hausman test (1978). According to our estimation Annex N°(6) the statistics of the Hausman test equals 9.63 with a probability of less than 5%. So we retain the fixed effect model to estimate. 5.2 Empirical results

Exogenous

Variable (1) (2) (3) (4) (5)

Constant

0.675***

(9.11)

-0.122

(-0.42)

0.4803

(6.23)

-0.0891

(-0.20)

-0.0793

(-0.18)

Log (fdi) 0.007***

(2.47)

0.0065***

(2.33)

0.0072***

(2.70)

0.006***

(2.09)

0.0067**

(2.46)

Log (wr) 0.439***

(4.29)

0.4392***

(0.101)

0.3284***

(3.35)

0.2802**

(2.06)

0.2963**

(2.23)

Log

(oda)

0.0076

(0.24)

0.0236

(0.74)

-0.0064

(-0.21)

0.0089

(0.28)

0.0026

(0.09)

Log (tot) 0.3967*** 0.1897



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Note: the endogenous variable is the annual rate of GDP growth *, **, *** Indicate statistical significance respectively at 10%, 5% and 1%. The main objective of this study is the investigation of the remittances mixed with two other external funding sources and three conventional sources of economic growth. The results of our estimation show that shipments of immigrants have a positive impact on economic growth in developing countries.

For the entire sample and referring to all the columns in the table above, the elasticity the rate of annual growth of GDP relative to foreign direct investment (FDI) is positively significant at 1%. In addition, the results of our model show that remittances from migrants have a positive impact and statistically significant at 1% level. Thus an increase in remittances (in percentage of GDP) by 1% leads to an increase of 29.63% annual growth rate GDP of developing countries in the MENA region.

If FDI flows to developing countries of the MENA region increases by 1%, this will cause changes in the rate of GDP growth of 0.67%. This is consistent with results obtained by; Blomstrom M.,Lipsey, R., & Zejan, M. (1996); Hansen and Rand (2006); de Mello, (1999); who found that the evolution of FDI have an empirical positive effect on the growth of receiving countries, because of the use the FDI inflows in developing countries to allow this country to exchange with other countries.

(2.86) (1.31)

Log (gcf) 0.5300***

(5.89)

0.4897***

(5.25)

Log (sc) 0.3825***

(1.77)

0.0964

(0.44)

Obs 260 260 260 260 260

N 13 13 13 13 13

R2

Within

0.131 0.2395 0.2422 0.145 0.250

R2

Between 0.612 0.7177 0.5970 0.645 0.642

R2

Overall

0.204 0.3126 0.2959 0.195 0.306



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In addition, our results indicate that remittances have a positive and statistically significant impact at the 1% level. Thus an increase in remittances percentage of GDP by 1% leads to an increase of 29.63% of the annual growth rate of GDP in developing countries in the MENA region.

This result is predicted by Faini (2002) and Ang (2007) who found a positive impact done by the remittances.This is the same view of Stahl and Arnold (1986)54; who argue that despite the factthat transfers funds are intended for consumption, they can have a positive effect on growth economic multiplier effects because of their potential. In addition, remittances appear as a response to investment opportunities in countries of origin.Similarly, Adams and Page (2005), Insights (2006), Siddiqui and Kemal (2006) and Gupta, Pattillo, and Wagh (2009) and the development economists of the World Bank Dilip Ratha and Sanket including Mohapatra55 argue that remittances’s effects on the welfare and economic growth are positive.

If we compare the two coefficients assigned to the variable (FDI) and the variable (WR), we note that there is a contribution of flux transfer to the annual GDP growth well above that of FDI, despite the fact that FDI flows are much larger compared to the remittances. For the elasticity of the annual growth rate of GDP compared with official Development Assistance ODA, the results reported in columns (1) (2) (4) (5) tells us that variable (ODA) has a positive but not significant annual growth in GDP.

This is predicted by Boone (1994-1996) who studied the relationship between ODA and economic growth and demonstrated that the ODA does not impact on investment or growth in the context of neoclassical models and that this impact may even be negative (column (4)) on economic growth.Heller (1975) and Fayissa and El-Kaissy (1999) support the findings of Boone (1994) and state that external capital flows generate a negative effect on domestic savings and economic growth in developing countries.

Indeed, it is noted that developing countries are structurally vulnerable to so many factors whose may influence the effectiveness of ODA. And therefore, these factors determine the effectiveness of this assistance granted to developing countries.

Among these factors there are: the quality of the institutional and policy study by Burnside and Dollar (2000) who hypothesize that the impact of foreign aid on economic growth in developing countries is conditioned by economic policies that influence economic growth.

They found that the interaction between aid and an index of policy 56 (Policy Index) is statistically positive. The quality of macroeconomic policies is actually apprehended by the control of inflation, balanced budget and the implementation of a policy of trade openness. 54Op cit n°19 p.8 55 Op cit n° 16 p.8 56 The index implies that the marginal effect of aid on growth depends on the quality of policies economic. This indicator of economic policy is as follows: Policy = 1.3 +5.4 x Budget surplus - 1.4 x Inflation + 2.1 x Openness



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The conclusion that the effectiveness of aid depends on the quality of economic policies then results from the demonstration, based on estimates of growth, a significantly positive indicator of economic policy on economic growth. In addition, there are other factors influencing this effectiveness as:

The level of poverty (Collier and Dollar 2001); Economic vulnerability ( Chauvet and Guillaumont, (2001) ; The absorption capacity of ODA ((Hansen and Tarp 2000, 2001).

It is therefore important to study, the impact of the economic policy index as well as the factors stated below, on the effectiveness of ODA to promote economic growth. By introducing the variable (tot); which is a measure of openness of the economy to capture the impact of trade or economic openness on economic growth; we obtain firstly coefficient with it a positive sign and statistically significant at 1% (column (2)). This confirms what was found by Sachs and Warner (1995). Thus, an increase of Variable (tot) of 1% will increase 39.67% of the annual growth rate of GDP in the developing countries of the MENA region. By introducing the variable log of the rate of gross fixed capital formation as a ercentage of GDP (gcf) (column (3) and (5)), we notice that the impact of this variable is positive and statistically significant at the 1% level. An increase of GDP of 1% will increase annual growth rate of GDP by 53%. Thus, in accordance with the findings of Solow (1956), Barro (1990) and Temple (1990), we find that investment in physical capital, (GCF), measured as gross fixed capital as a percentage of GDP has a significant positive effect on economic growth. By introducing the variable secondary school enrollment rate (column (4)), we notice that the impact of this variable is positive and significant at the level of 10%. Indeed, an increase of 1% of capital investment human lead to an increase of 38.25% annual growth rate of GDP. And finally, making a mix between the traditional variables of economic growth and external capital flows variables; the results of estimating the overall model (column (5)) confirm the results found previously. Concerning the effect of the aid variable, its impact is positive but not significant this is explained by the presence of several factors affecting its effectiveness in promoting economic growth.



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7. Conclusion Our work aims to estimate the response of economic growth to a change in the remittances level, based on a model that explains economic growth with the annual growth rate of the GDP level. Our results show that the mix of external resources of financing development and traditional resources of economic growth in developing countries in MENA trigger a significant impact on annual growth rate of GDP. However, only the ODA‘s impact on economic growth isn’t significant in this region. This can be explained by the fact that several factors may influence the effectiveness of this help in stimulating economic growth.

It should be noted that; whatever the source of external finance flows (ODA, FDI or remittances), the direct effect of each of its sources of economic growth based on previous empirical studies, isn’t significant.This reflects their mixed impacts on economic growth in developing countries because each of these resources can have positive and negative effects on developing countries receptionists.

Given this debate, we tried to investigate the effect that can cause mixed financing external sources on annual GDP growth of developing countries in the MENA region.

The contribution of our work in the empirical literature is that we provide evidence, for which Remittances to Developing Countries of origin in their MENA region, can stimulate economic growth while taking into account the conventional sources of growth using the standard theory.We have thus shown empirically that remittances have a significant and positive contribution to economic growth.

From our study, three policy implications can be drawn up:

We must first note that the developing countries of the MENA region can improve their economic performance, not only by investing the traditional growth resources such economic investment in physical capital, human capital and trade, or else exploiting external capital flows such as FDI and official development assistance, but also through the contribution of the remittances.

The second implication concerns the effectiveness of ODA. Indeed, according to our results, ODA has no significant impact on promoting economic growth. This impact can even be negative. This reflects the fact that the effectiveness of ODA depends on several factors.

It is important then, to incorporate these factors in our regressions; in future studies as control variables governing the effectiveness of ODA. In addition, we consider the development of a review to highlight the conditions; policies and variable integrating within developing countries to implement the effectiveness of ODA.



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As official development assistance, remittances can be more effective in good economic and institutional environment. For example, a good investment climate with a well-developed financial system is likely to imply that a larger share of remittances is invested in promoting human capital.

This finding has led many economists to study the effect of a good institution on effectiveness of the role of remittances in stimulating economic growth, as Catrinscu, Leon Lesdesma, Piracha and Quillin (2008) who used, in the estimates the same controls variables used by Chami (2003), adding that the effect of remittances to growth could act through different channels, such as institutions that are become the most important catalyst for the effect of the emigrants sending.

So we consider other tests to identify what are the conditions, policies and strategies that developing countries must adopt to catalyze the provision of ODA and remittances. Thus, we will try to identify how we can improve the structure of the ODA, FDI and remittances while relying on the problems experienced by each structure.In this context, we note that the system of remittances’ transfers is still a fragile and isn’t effective, although the impact of remittances is positive and significant for developing countries receptionists. In fact, this inefficiency is mainly due to lack of information and transactions such transfers through informal channels.Finally, and to verify the hypothesis of substitutability advanced by the WB and IMF who think that remittances can easily substitute for ODA, we plan to study the comparative efficacy of each external source of development ODA, WR, IDE under model arbitration between these three sources.And from this model, we can judge whether this hypothesis is verified or if substitutability there is complementation between these three sources of external capital.



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References Alesina, A. and D. Dollar, (2000), “Who Gives Foreign Aid to Whom and Why?” Journal of Economic Growth 5(1): 33-63. Ang, J., (2008), “a survey of recent developments in the literature of finance and growth”,Journal of Economic Surveys 22 (3), 536–576. B. Bhaskara Rao1, Gazi Mainul Hassan , (2010), “A panel data analysis of the growth effects of remittances”, Economic Modelling, ECMODE-01898; No of Pages 9 Balasubramanyam, V. N., Salisu, M., & Sapsford, D.(1996), “ Foreign direct investment and growth in EP and IS countries”, Economic Journal, 106(1), 92-105. Barajas, A., Chami, R., Fullenkamp, C., Gapen, M., Montiel, P., (2009). “Do workers' remittances promote economic growth?”, International Monetary Fund WorkingPaper No. WP/09/153. Bende-Nabende, A., Ford, J., Santoso, B., & Sen, S., (2003), “The interaction between FDI, output and thespillover variables: Co-integration and VAR analyses for APEC”, 1965-99. Applied Economics Letters, 10(3).. Blomstrom, M., Lipsey, R., & Zejan, M. ,(1996), “Is fixed investment the key to economic growth?”, Quarterly Journal of Economics, 111(1), 269~76. Boone, P, (1994), “The impact of foreign aid on savings and growth”, Mimeo, London School of Economics. Borensztein, E., Gregorio, J., & Lee, J. (1998), “How does foreign direct investment affect economic growth”, Journal of International Economics, 45(1) Borjas, G. (1995). “The Economic Benefits from immigration” Journal of Economic Burnside, C. and D. Dollar, (2000), “Aid, Policies and Growth”, American Economic Review, 90, 4: 847–68. Burnside, C., and D. Dollar, (2004), “Aid, Policies and Growth: Revisiting Evidence”, Policy Research Working Paper 3251. World Bank. Washington, D.C. Cassen, R., and Associates. 1994. Does Aid Work? 2 nd ed. Oxford: Clarendon Press. Carl-Johan Dalgaard, Hhenrik Hansen et Finn Tarp, (2004), “On the empirics of foreign aid and growth”, The economic journal, 114, F 191- F 216, Royal economic society 2004 Cassen, Robert , (1985), “Does Aid Work? ”, Oxford: Oxford University Press. Catrinscu, Leon-Lesdesma,Piracha et Quillin (2008), “Remittances, Institutions, and Economic Growth”, World Development Vol. 37, No. 1, pp. 81–92, 2008 Elsevier Chami R, Fullenkamp C and Jahjah S (2003) “Are Immigrant Remittance Flows a Source of Capital For Development?”, Washington, D. C. : IMF Chauvet, L. and P. Guillaumont, (2002), “Aid and Growth Revisited: Policy, Economic Vulnerability and Political Instability”, paper presented at the Annual Bank Conference or Development Economics on Towards Pro-poor Policies, June, Oslo. Chenery, H.B. and Strout, A.M., (1966), “Foreign Assistance and Economic Development”, American Economic Review 56(4): 679-733. Denis Cogneau, Jean-David Naudet, (2003), “Une critique du principe de sélectivité pour l’allocation de l’aide”, Dialogue numéro 23, Juin 2003. Dilip Ratha and Sanket Mohapatra, (2007), “Development Prospects Group”, The World Bank Washington D.C. 20433November 26, 2007 Dollar, D, and V. Levin, (2004), “The Increasing Selectivity of Foreign Aid, 1984-2002”, World Bank Policy Research Working Papers 3299, World Bank: Washington DC.



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Durbarry, R. N. Gemmell, and D. Greenaway., (1998), “New Evidence on the Impact of Foreign Aid on Economic Growth”, CREDIT Research Paper 98r8, University of Nottingham. Durham, J. B, (2004), “Absorptive capacity and the effects of foreign direct investment and equity foreign portfolio investment on economic growth”, European Economic Review, 48(2), 285-306. Easterly, William, (2003), “Can Foreign Aid Buy Growth?”, Journal of Economic Perspectives, Vol. 17, No. 3, pp. 23-48. Faini, R. (2002). Migration, remittances, and growth. <http://www.wider> Giuliano, P., & Ruiz-Arranz, M. (2005), “Remittances, financial development and growth, IMF” working paper no. 234 Hansen, Henrik and Finn Tarp, (2000), “Aid Effectiveness Disputed”, Journal of International Development. April, 12:3, pp. 375–98. Hudson, J. and P. Mosley, (2001), “Aid, Policies and Growth: In Search of the Holy Grail”, Journal of International Development, 13: 1,023–38. IOM (International Organization for Migration), (2005), World Migration 2005, Geneva Jacky Amprou et Cauvet Lisa, (2007), “Débats sur l’Efficacité de l’aide: fondements et nouveaux enjeux”, Agence française de développement, 2007.Journal of Economic Surveys 22 (3), 536–576. Lisa Chauvet et Patrick Guillaumont (2003), “AID and growth revisited : Policy, Economic vulnerability and Political Instability’’, CERDI, CNRS, Université d'Auvergne, E 2003.27, Lucas, R.E, (1988), “On Mechanics of Economic Growth,” Journal of monetary Economics, 22 (July):3-42. OCDE (2009), “perspectives des migrations Internationales”, SOPEMI 6 2009 Oliver Morrissey (2002); “Aid Effectiveness for Growth and Development”; Odi opinions Perspectives, 9:3-22 Stahl, Charles W. and Fred Arnold, (1986), “Overseas Workers’ Remittances in Asian Development,” International Migration Review, 20 (4): 899-925. Solow, R., (1956), “A Contribution to the Theory of Economic Growth,” Quarterly Journal of Economics, 70(February): 65-94. Temple, J. R. W., (1999), “The New Growth Evidence”, Journal of Economic Literature, 37 (March 1999):112-156. UNCTAD, (1999), “Worm investment report: Foreign direct investment and the challenge of development” , New York and Geneva: United Nations.unu.edu/conference/conference-2002-3/conference%20papers/faini.pdf>Retrieved 01.04.05 World Bank, (2006), “Global Economic Prospects, Economic Implications of Remittances and Migration” World Bank: Washington DC World Bank, (1998), “Assessing Aid: What works, what doesn't, and why?”, New York (Oxford University Press).



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Appendix:

Appendix (1):Burnside and Dollar’s model (1997-2000)

gi ,t= βgo+yi,t βi,t+ai,t βg,a+Pi,t’βg,p+ai,t Pi,t’β +x’i,t βgap +εi,t

Where: gi, t: growth rate of real GDP of each country "i" at time "t". yi, t: growth rate of real GDP at the beginning of the period of each country "i" at time "t". ai, t: the level of ODA as a percentage of GDP received by the country "i" at time "t". Pi, t: a vector of policy variables in country "i" at time "t". These policy variables are: Inflation: indicator of monetary policy The budget surplus The trade openness Shacs and Warner (1995) Xi, t: A structural vector of exogenous variables and initial conditions C • GDP / capita to capture the initial impact of convergence (Summers and Heston, 93). • The rate of population growth the average years of secondary education after the age of 25 (Barro and Lee, 1996). • Financial depth measured by the ratio of M2 to GDP proxy = initial distortion of the financial system. • A measure of political instability passing = weighted sum of the number of revolutions/ year and the number of murder / million inhabitants / year. (Barro and Lee, 93) • An index of ethno-linguistic fragmentation. Appendix (2): Model (1) mixed sources



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Appendix (3): Introduction of TOT’s variable

Appendix (4): Introduction of the secondary enrollment rate



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Appendix (5): Introduction of the gross capital formation in percentage of GDP

Appendix (6): Mixing between external sources of funding for development and the traditional sources of economic growth



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Appendix (7): Hausman test

Variable Description

G Annual GDP growth WR Remittances as percentage of GDP ODA Official Developement Assitance as percentage of GDP FDI Net foreign direct investment inflows as percentage of GDP GCF Gross capital formation as percentage of GDP TOT Net barter terms of trade (2000=100) SC Secondary enrollment rate

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