地中海国家小额信贷机构的绩效

地中海国家小额信贷机构的绩效
Performance Of Microfinance Institutions In Mediterranean Countries

本文探讨在推广和可持续发展的条件下，经验治理机制与欧洲地中海的小额信贷机构的绩效之间的关系（MFI）。具体来说，我们发现，管理者的绩效薪酬没有与性能较好的小额信贷机构相关。结果确定小额贷款的推广和可持续发展之间的权衡取决于较大的板尺寸，并对独立董事比例更高。此外，研究表明，女性在董事会表现的更好，并揭示了外部治理机制帮助小额信贷机构实现更好的财务业绩。这项研究也使我们能够区分其他因素，形成一个更好的可持续发展，如调节个人贷款的使用方法。然而，小额信贷机构作为非政府组织，他们的社会使命似乎与财务绩效更一致。
小额信贷是被穷人排除在金融/信贷市场，因为他们认为unbankable提供金融和非金融服务。事实上，小额信贷机构的发展主要是由于个人和援助机构致力于确保穷人获得某种形式的信贷的想法的结果。大多数的小额信贷机构声称它们具有达到贫困者的双重使命（宣传）和经济上的可持续（可持续发展）。
虽然达到最贫穷和减贫的社会目标是有效的，但财政可持续性作为核心管理和治理问题已成为一个问题。萎缩的资源库供资金支持的需求越来越大，赠款和软贷款意味着小额信贷机构最终将不得不支持自己（雷格伍德，2000）。

This paper examines empirically the relation between governance mechanisms and the performance of Euro-Mediterranean microfinance institutions (MFIs) in terms of outreach and sustainability. Specifically, we found that performance-based compensation of managers is not associated with better performance of MFIs. The results identify tradeoffs between MFIs outreach and sustainability depending on larger boards size, and on higher proportion of unaffiliated directors. Moreover, the study shows that the more women there are on a board the better the performance, and reveals that external governance mechanisms help MFIs to achieve better financial performance. This study also allows us to distinguish other factors leading to a better sustainability such as Regulation, the use of individual lending methodology. However, the MFIs active as NGOs seem to be more consistent with their social mission than with their financial performance.

1. Introduction——简介

Microfinance is the provision of financial and non financial services to the poor who are excluded from financial/credit markets because they are considered unbankable. Indeed, microfinance institutions has evolved primarily as a consequence of the efforts individuals and assistance agencies committed to the idea of ensuring that the poor people has access to some form of credit. The majority of MFIs claims having a dual mission of reaching poor borrowers (outreach), and being financially sustainable (sustainability).#p#分页标题#e#
 

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While the social goals of reaching the poorest and poverty alleviation are valid, financial sustainability has emerged as one of the core management and governance issues. The shrinking resources base for donor funds to support the increasing demand for grants and soft loans implies that MFIs will eventually have to support themselves (Ledgerwood, 2000). However, their sustainability will focus on governance structures within the industry. Indeed, as M Labie (2000) observes, in the last decade corporate governance principles have imposed themselves as the basic rules for any well Run Company to follow. The trend has however transcended from traditional business companies but is now part of the globalization process often seen as a tool for standardizing the controlling vision for any major organization in the world. The drive towards Governance has been propelled by a number of factors particularly the collapses of some of the major players in the Industry, the influx of private Equity and fall in donor funding.

Governance is about achieving corporate goals. The fundamental purpose of MFIs is to contribute to a country development. This involves reaching out to more clients especially the poor (Helms, 2006; Johnson et al., 2006). Not least but now growing in importance especially among donors is the requirement that MFIs achieve financial sustainability.

Microfinance practitioners assert that good governance is the key to a successful MFI (Campion, 1998; Rock, Otero & Saltzman, 1998; Labie, 2001; CGAP, 2006; Helms, 2006; UN, 2006). In spite of these observations, only few studies have focused on governance and the examination of the linkage of various governance mechanisms and performance (McGuire, 1999). It seems relevant to examine closely the role of various governance mechanisms since MFIs managers control significant resources. Except the study of Hartarska (2005), and those of Mersland, Roy and Strøm, Reidar Øystein (2007), and Cull et al., (2007), no more study attempt to shed light on the link between governance and performance especially in the Euro-Mediterranean countries although it is a very active zone with a microfinance industry quite diverse (NGO, NBFI, Bank) where actors should simultaneously pursue the most effective way of realizing their social objective while achieving superior levels of profitability.

While exploiting recently conducted survey by the authors in order to study the efficiency of MFIs in Mediterranean countries, the annual financial reports of the microfinance institutions and other relevant information collected from Microfinance Information Exchange (MIX), this paper aim to investigate the link between governance and Euro-Mediterranean MFIs performance in terms of outreach and sustainability since governance guides an institution in fulfilling its corporate mission and protects the institutions assets over time. As Rock, R, Otero, M & Saltzman, S (1998) notes it is a key in guiding management in strategic issues and in carrying out the agreed upon strategic plans. The empirical model explores the joint and individual effect of management compensation, board diversity, and external governance mechanisms on both MFI sustainability, and the depth and breath of outreach while controlling for individual characteristics and, as well as country specific factors. The results show that performance-based compensation does not improve performance. MFIs with larger boards seem to do better. More independent boards are more effective however. Board diversity (Higher proportion of women) seems to ameliorate outreach. External governance mechanisms especially auditing and regulation improve the financial sustainability.#p#分页标题#e#

The remainder of this paper is organized as follows. Section 2 deals with the research context. Section 3 briefly reviews the few related studies. Section 4 presents the conceptual framework as well as working hypothesis. Section 5 looks at data description and methodology. Section 6 discusses the empirical findings, and Section 7 draws conclusions emanating from the findings.

2. Microfinance in Mediterranean——地中海小额信贷

Experience throughout the world has proven that microfinance help the poor to increase income, built their business, and secure their future by reducing their vulnerability to external shocks. Furthermore, microfinance is often a powerful tool for empowering the poor especially women, to take charge of their economic well-being and those of their families.

The Euro-Mediterranean region consists of 21 countries. The microfinance industry in this zone is young with high growth potential. Currently, it is estimated that there are over sixty microfinance institutions (MFIs & NGOs), and a potential of numerous other producing credit to poor microentrepreneurs (Ben Soltane, 2008). The majority of these programs are south of the Mediterranean (Egypt, Jordan, Lebanon, Morocco, Palestine, Tunisia, and Syria). Programs also exist in Spain, France, Italy, Kosovo, Albania, Bosnia, and Croatia (Figure 1).

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Euro-Mediterranean MFIs aim to provide financial services to low income households, even the extremely poor in a participatory and non-paternalistic development approach to the great interest of the donor community, policy makers, development researcher and practitioners. According to the so-called "win-win" proposition MFIs should combine the socials goals, such as poverty alleviation and reaching poor households (outreach) with operational and financial self-sufficiency (sustainability) based on access to international financial markets independently from international development agencies. Therefore, MFIs should simultaneously pursue the most effective way of realizing their social objective while achieving superior levels of profitability.#p#分页标题#e#

The region’s top MFIs are openly committed to best practice microfinance. In terms of depth of outreach, the sector has generally moved towards serving more and more of the poor clients. According to the FEMIP and Sanabel study, the Mediterranean represents a potential market for the microfinance with nearly 40 million customers, whereas currently only 9 million people profit from the financial assistance of the companies operating in this sector. The number of borrowers increased of more than 43 % per annum between 2004 and 2006, against 20% on a worldwide scale, an indication that the sector as a whole is reaching more of the marginalized in the society. The region’s top MFIs have proven also to have excellent leadership abilities, impressive outreach and growth, as well as a commitment to best practice microfinance. Furthermore, it is estimated that around 85% of the region’s active clients are served by sustainable MFIs.

3. Literature review——文献综述

Governance in microfinance has been recognized to be an important issue. However, the biggest problem to microfinance practitioners has been balancing the dual mission of outreach and sustainability. The changing of microfinance environment has shown a move towards sustainability ultimately leading to governance issues as donors funds shrink and equity inflows increase in the microfinance sector. Microfinance institutions have therefore embraced boards and adopted principles of corporate governance to ensure their survival.

Investigating the link between good governance and the performance of MFIs in terms of outreach and sustainability is crucial since governance guides an institution in fulfilling its corporate mission and protects the institution assets over the time. However, there is a limited academic studies dealing with this subject, partly due to the lack of data.

While using three surveys of rated and unrated east European MFIs from three random samples in the period 1998 to 2002, Hartarska (2005), investigates the relation between governance mechanisms and financial performance. Financial performance and outreach constitute dependant variable dimensions and governance mechanisms include board characteristics, managerial compensation, and external governance mechanisms such as rating, financial statements audited, and supervision. The author finds that performance-based compensation of managers is not associated with better performing MFIs; lower wages suggested for mission-driven organization worsen outreach. She identify also that a more independent board has better ROA, but a board with employee directors gives lower financial performance and lower outreach. Finally, the author concludes that external governance mechanism seems to have a limited role in the study region.

In a recent study, Mersland, Roy and Strøm, Reidar Øystein (2007), use a self constructed global data set on MFIs spanning 57 countries collected from third-partly rating agencies. The authors study the effect of board characteristics, ownership type, competition and regulation on the MFIs outreach to poor clients and its financial performance. They found that split roles of CEO Chairman, a female CEO, and competition are important explanation. Moreover, the authors found that larger board size decrease the average loan size, while individual guaranteed loan increase it. Finally, they conclude that there is no difference between nonprofits organizations and shareholder firms in financial performance and outreach.#p#分页标题#e#

A third study conducted by Cull et al., (2007) looking at MFIs financial performance and outreach as well, with a focus on lending methodology [2] , controlling for capital and labour cost as well as institutional features. While using data from 124 rated MFIs, the authors found that MFIs that focus on providing loans to individuals perform better in terms of profitability. Yet, the fraction of poor borrowers and female borrowers in the loan portfolio of these MFIs is lower than for MFIs that focus on lending to groups. The study suggests also that individual-based MFIs, especially if they grow larger, focus increasingly on wealthier clients, a phenomenon termed as “mission drift��?. This mission drift does not occur as strongly for the group-based MFIs. However, no governance variables, such as board characteristics or ownership type are taken into consideration.

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The limited academic investigation into the link between governance mechanisms and performance of MFIs in terms of outreach and sustainability, and the fact that other governance mechanisms such as the proportion of women in the board remain unexplored justify the importance of a similar study in the Euro-Mediterranean zone, characterized by a very active and quite diverse microfinance industry, that complete formers studies.

4. Conceptual framework and working hypothesis——概念框架和工作假说

While focusing on the microfinance field, the governance can be defined as the process of guiding an institution to achieve its objectives while protecting its assets. It refer to the mechanisms though which donors, equity, investors, and other providers of funds ensure themselves that their funds will be used according to the intended purposes (Hatarska, 2005). The presence of these control mechanisms is crucial either to align the interests of managers and providers of funds since they may have diverting preferences and objectives, or to monitor the performance of managers to insure that they use their delegated power to generate the highest possible returns for the providers of funds. This notion comes from the agency perspective. It found its origins in the work of M. C. Jensen and W. H. Meckling, 1976 who assimilate the firm to a node of contracts. The explanatory model of the structures of financing and shareholding is founded on the assumption of asymmetry of information and conflicts of interests between managers and providers of funds. According to M. C. Jenson and W. H. Meckling, agency relationship is a contract under which “one or more persons (principal) engage another person (agent) to perform some service on their behalf, which involves delegating some decision-making authority to the agent��? [3] . In this case the relation of agency will relate the principal (owner) and his agent (manager), this last being engaged to serve the interest of the first. From these relations emanates the concept of agency costs, costs which result from the potentially opportunist character of the actors (moral hazard) and information asymmetry between the contracting ones (adverse selection). These agency costs represent the loss in value compared to an ideal situation where there is no information asymmetry and conflict of interests. According to the theorist of agency an organisation is considered efficient if it minimise the agency costs. This purpose can be intended though an effective governance mechanism.#p#分页标题#e#

According to Keasey et al., 1997, the most important features of an effective governance framework are ownership structure (including institutional and managerial ownership), CEO (manager) and director (board member) remuneration, board structure (size and composition), auditing, information disclosure, and the market for corporate control. Usually, research literature related to this field use partial measures. In other words, governance studies treat separately the impact of each variable such as compensation, board size, independence and diversity, and external market forces on firm performance. However, since latest studies (Hermalin & Weisbach, 2003) identify the complementarities, and the correlation between these mechanisms, this study will investigate the impact of the majority of these mechanisms excluding ownership due to lack of data on ownership structure.

The most important attribute that distinguishes microfinance institutions from other is what has come to be called its dual mission of balancing a social agenda or social impact with its financial objectives. The MFI combine a social development mission (provision of financial services to the lowest income population possible), with a financial objectives that drives the institution to achieve self-sufficiency and thereby accomplish sustained service delivery without dependence on subsidies. These dual objectives (social: outreach, and financial: sustainability) make difficult the study of governance of MFIs, especially with their different types: Non profit, Non-Governmental Organizations (NGOs), For-profit Microfinance Institutions, Credit Unions. This challenge is surmounted by formulating and testing hypothesis based on insights from the literature on corporate governance, formers studies, governance in banks and in non profit organizations, and by estimating the impact of the governance mechanisms on both sustainability and outreach.

4.1. Internal Governance mechanism——内部治理机制

The incentives of top management have been characterized as an important mechanism of corporate governance as it ensures the alignment of the management and the shareholders interest (John et al., 2004). In other words, it serves as a mechanism for resolving the conflict of interest among the managers and shareholders. Brick, Palmon and Wald (2006) highlighted that director compensation should also affect performance of a firm. With regards to banking institutions, higher-powered incentives may encourage managers to take higher risks at the expense of depositors, who would suffer if the institution fails; thus low pay-performance sensitivity is suggested (John & John, 1993). In fact, it is proved by Adams & Mehran, 2003; Houston & James, 1995; John & Qian, 2003, that pay-performance sensitivity in banking in lower than other industries.

Since in non-profit firm there is a growing problem of informational asymmetry between clients and managers (i.e., managers possess many crucial information about the product), it seems that the fixed management salaries is the best choice for mission-driven organizations (Easley & O’Hara, 1998). With the fixes salaries, the managers, indifferent between telling the truth or lying, will find it in his benefit to tell the truth. Therefore, if the client and donors find the information provided by non-profit managers more credible, the firm will be better-funded and better-performed.#p#分页标题#e#

Hypothesis 1. MFIs whose manager receives a fixed salary will not perform worse than MFIs whose managers receive performance based remuneration.

Most guidelines recognize that the board of directors is the focal point corporate governance. The composition and structure of the board have a direct bearing on corporate governance. Board of directors is designate for the purpose of ensuring the alignment of the firm activities and its specified objectives. The board has the duty for making sure that the top managers are behaving in a way that will provide the optimal value for shareholders (Coles et al., 2001).

There is a view that larger boards are better for corporate performance because they have a range of expertise to help make better decisions, and are harder for a powerful CEO to dominate. However, recent thinking has leaned towards smaller boards. Jensen (1993) and Lipton & Lorsch (1992) argue that large boards are less effective and are easier for a CEO to control. When a board gets too big, it becomes difficult to co-ordinate and process problems. Smaller boards also reduce the possibility of free riding by individual directors, and increase their decision taking processes. Empirical research supports this. For example, Yermack (1996) documents that for large U.S. industrial corporations, the market values firms with smaller boards more highly. Eisenberg et al. (1998) also find negative correlation between board size and profitability when using sample of small and midsize Finnish firms. In Ghana, it has been identified that small board sizes enhances the performance of MFIs (Kyereboah-Coleman and Biekpe, 2005). Mak and Yuanto (2003) echo the above findings in firms listed in Singapore and Malaysia when they found that firm valuation is highest when board has five directors, a number considered relatively small in those markets. In a Nigerian study, Sanda et al (2003) found that, firm performance is positively related with small, as opposed to large boards.

Hypothesis 2. Board size should have an inverse correlation with MFIs performance

A third common monitoring mechanism advocated by the agency perspective is a board composed of a majority of independent directors. These non-executive or "outside" directors are believed to provide superior benefits to the firm as a result of their independence from firm management. Under this organizational design, conflicts of interest can be avoided and executive leaders can be evaluated more objectively.

The literature suggested that increases in the proportion of outside directors on the board should increase firm performance as they are more effective monitors of managers (Adams and Mehran, 2003). The proportions of the outside directors can be measured in terms of the ratio of outside directors to board size. The positive aspect of having board independence was evidenced in a study by Byrd et al (2001) that highlighted the survival of firms in the thrift crisis due greater proportion of independent directors in the board. Kyereboah-Coleman and Biekpe (2005) found also a positive relationship between proportion of outside board members and performance of MFIs in Ghana.#p#分页标题#e#

Hypothesis 3. MFIs performance will be affected positively by the proportion of non-affiliated outsiders on the board.

Corporate governance literature argues that board diversity in terms of women and minority representation is potentially positively related to firm performance. Board diversity promotes a better understanding for the market place, increases creativity and innovation, produces mores effective problem solving, enhances the effectiveness of corporate leadership, and promotes effective global relationships (Robinson and Dechant, 1997). Fondas and Sassalos, 2000 argue that diversity in board composition via greater female representation will lead to improved board governance and top management control. In microfinance, the study of Coleman, 2006 show that having women in CEOs on MFI boards enhance performance and also the more the women there are on a board, the better the performance. Furthermore, having a high fraction of women in the board would help the MFI understand its customers better so as to separate the good risk from the bad (Mersland R. et Oystein Strom R. 2007).

Hypothesis 4. Board diversification and the presence of women and minority will lead to a better performance of MFI.

Another principle of effective bank supervision is effective internal audit. Internal audit helps to identify problem areas and to avoid major collapse. The internal board auditor provides independent, objective assessments on the appropriateness of the organization’s internal governance structure and the operating effectiveness of specific governance activities. Reporting of all internal audit reports in an accurate and timely manner is essential for evaluation of the institution’s status and need for any change in strategy. Policy papers for MFIs stress the importance of internal audit and recommend that the internal auditor reports directly to the MFI board (Steinwand, 2000).

Hypothesis 5. MFI allowing their internal auditors to report directly to the board should show higher financial performance.

4.2. External Governance Mechanisms——外部治理机制

The external governance mechanism can be implemented as a result of the failure or the weakness of internal governance mechanisms. In the microfinance industry donors and creditors are increasingly relying on information from audited financial statement and rating agencies (Hartarska, 2005). These external governance mechanisms are an important mechanism that provides depositors, creditors and shareholders with credible assurances that they will refrain from fraudulent activities. In other words it reduces informational asymmetries between the different stakeholders and the firm (Healy & Palepu, 2001).

Audited financial statements are an important tool for the assessment of MFIs by regulators and capital markets. They form an important part of the effective corporate governance. The auditor’s role is to provide a disinterested an objective view of the financial statements of the MFI in the line with generally accepted accounting standards. It is a mean to ensure potential investors and donors that an MFI complies with the accounting practices and managers do not misrepresent financial information.#p#分页标题#e#

Hypothesis 6. MFIs with financial statement audited achieve better performance than MFIs without financial statement audited.

According to Hartarska (2005), in the absence of developed equity and debt market, donors and investors rely on independent evaluation of MFIs performance. A MFIs rating reflects a rating agency’s opinion of entity’s overall creditworthiness and its capacity to satisfy its financial obligations. The raters evaluate objectively and independently the corporate governance in MFI and rank it on a relative rating scale that would facilitate comparison. Unlike typical rating agencies that rate the riskiness of issued debt, microfinance rating agencies rate the overall performance of the MFI in terms of outreach and sustainability.

Hypothesis 7. Rating helps MFIs to achieve better results

Many MFIs around the world operating as NGOs have increased their assets, reorganized, and transformed into regulated entities that can capture savings deposits. A regulated MFI has more chance to earn customer trust, and by the way to have a higher financial performance. Hence, regulation is crucial for microfinance sector development since it affect MFI performance by changing the internal rule of the organization. It implies the access to an important and low-cost funding source through the right to mobilise savings. Due to this effect, the MFI win the opportunity to increase the number of clients, but also to increase average loan amounts for existing borrowers. Moreover, if demands to fulfill regulatory requirements divert attention away from serving the poor, and hold back innovation in lending technology that has been the driving force behind MFIs’ability to serve even poorer borrowers, regulatory involvement will lead to "mission-drift" (Hartarska, 2007). Therefore, the effects upon depth and breadth in outreach may be uncertain as well, either upon depth or breadth, or a combination of the two (Mersland R. & Oystein Strom R. 2007).

Hypothesis 8. Regulation may guide the MFIs to fulfill better sustainability, but not to achieve better outreach.

5. Data and methodological issues——数据和方法论问题

Data for this study are issued from various sources. The major part comes from a survey conducted by the author in 2006 in order to test the efficiency of microfinance institution in Mediterranean (Ben Soltane, 2008). The performance variables and some governance variables are also obtained from the annual financial reports of the microfinance institutions collected from Microfinance Information Exchange (MIX); a non governmental organization whose object is to promote the exchange of information on the microfinance sector around the world [4] . All these information are updated and completed by a questionnaire dealing fundamentally with detailed question on governance addressed to the MFIs in the region. The response rate was 58% with 40 institutions.

A special questionnaire was also addressed to the Mediterranean microfinance institutions that don’t figure in the MIX MARKET data base. The response rate for these MFIs was weak and near 20%, with four institutions. Due to missed data, only two institutions are taken into account. The final sample comprises 42 institutions working in 20 countries. Our sample is quite representative of the Mediterranean microfinance industry as well as of the governance mechanisms and the performance of MFIs in the region.#p#分页标题#e#

Following Hartarska (2005) works, our empirical model used to test the hypothesis include five major potential groups of determinants and is on the form:

Where is a performance variable for MFI i in country j at time t; are MFI specific variables; are management specific variables; are board-specific variables, are external governance mechanisms; and are the country-specific macroeconomic variables. It is crucial to mention at this level that our choice of a single-equation model is supported by the hypothesis that various governance mechanisms are endogenously determined is not always supported by empirical evidence [5] .

Since MFIs are special institutions having a dual mission, their performance is measured in terms of outreach and sustainability. Outreach is measured in breath and depth. Breach of outreach (NAB) is the logarithm of active borrowers, depth of outreach (DEPTH [6] ), is the average loan size on GDP per capita. Sustainability is measured by return on assets (ROA) which is a standard finance literature measure of performance, and by operational self-sufficiency (OSS). This variable measures how well the MFI can cover its costs through operating revenues.

MFI specific variables () are MFI size measured by the logarithm of total assets, MFI age measured in years sine commencement, and MFI type measured by three dummies (NGO, Nonbank Financial Institution, and bank). Since further studies (Navagas, Conning, & Gonzalez-vega, 2003) show that the type of lending methodology used influences the success of these organization, our study include a variable Individual which is a dummy that takes the value of one if the MFI used individual lending technology.

Variables built-in are Fixed-wage, which is a dummy for pay not based on performance, Experience is used to proxy for a manger’s quality and is measured by the years of work experience. The board-specific variables contains Board-size, measured by the number of board members; Employees measured as the proportion of MFI employees who are voting board members; Independent measured as the proportion of non-affiliated board members; Women measured as the proportion of women in the board; Internal Board Auditor is a dummy variable that takes the value of one if there was an internal auditor with direct access to the board.

The variables included in are Regulation, which is a dummy that takes the value of one if the MFI was supervised by the central bank or other bank supervisory agency; Rated is a variable that indicates whether the MFI was subject to independent evaluation or rating by an outside organization; Audited is a dummy that take also the value of one if there was an audited financial statement in the year t-1.#p#分页标题#e#

Since MFI are issued from north and south of the Mediterranean, the dissimilarity in economic conditions across countries are controlled by the size of the economy (Economy size), measured by the logarithm of a country’s GDP, and by the average inflation rate (Inflation), measured by the average consumer price index. These variables are issued from the World Bank Development Indicators. We wanted also to build a variable that take account of the institutional differences between countries but we did not find an adequate measure.

The descriptive statistics for this study are shown in table 3. Notably, we have complete records of data for only 42 institutions. The performances of Microfinance Institutions are widely spread. On the average, the MFIs recorded a return on assets of 5,935%. While the minimum was -7.58%, the maximum performance was 33% indicating a widely spread performance. Similarly, the studied MFIs have on the average an Operational Self-Sufficiency of 85.41% with respectively a minimum and a maximum of 20.345% and 143.33%. As regard to the DEPTH, the average value relatively weak 220 indicate that the poor borrowers are very well served

On the average, the MFIs managers have 8.4 years of experience and 82.4% of these managers are receiving a Fixed-wage. On the average, 5 persons serve on a board of an MFI and a standard deviation of 3,32 coupled with a maximum board size of 16 members and a minimum board size of 4 members suggest that these boards are widely dispersed. The unaffiliated directors represent on the average 45% of the board members. The descriptive statistics indicate also that on the average 39% of all boards are made up of women.

In our sample, around half of the MFI have an internal auditor reporting directly to the board. Moreover, 81% of the MFIs studied have their financial statement audited and 37% of the MFIs forming the sample are rated. The result also shows that 42% of the institutions are regulated, and the individual lending technology constitutes 73% of the cases. The average age standing for the MFI is about 3 years. The NGO represent 59% of our sample however, the NBFI and Bank represent respectively 17% and 9% of the sample. Finally, the average inflation rate in all the countries subject of the study is about 16%.

As can be shown in table 4 dealing with the estimation of the impact on sustainability and outreach, our first hypothesis stipulating that the remuneration system (performance-based compensation or fixed salary) is confirmed. The coefficient on Fixed-wage is not significant in any of the specifications. This result confirms formers findings, such as Hartarska (2005) and can be attributed to the fact that MFIs managers may not have reacted to performance-based compensation offered during the study period.

Managerial qualifications as shown by the positive and significant sign of Experience in the OSS and NAB regressions as well as the enviable negative and significant coefficient in the DEPTH indicate that the acquired experience allows MFIs managers to reach poor borrowers and produce better sustainability.

Board size is rather positively related to ROA, OSS, and NAB suggesting in the contrary that MFIs with larger boards seems to do better. The results reduplicate our second hypothesis and confirm studies that support the view that larger boards are better for corporate performance since members have a range of expertise to help to make better decision, and are harder for powerful CEO to dominate. This is in sharp contrast to finding by Jensen (1993), Lipton & Lorsch (1992), Eisenberg et al., (1998), and Sanda et al., (2003); however, it confirm the finding of Kyereboah-Coleman, A, (2006).

An important result of this study is the support for the third hypothesis that MFIs with a higher proportion of unaffiliated directors had better sustainability (ROA & OSS) and also reach poor borrowers. This result confirm previous works: Hartarska (2005), and indicate that MFIs can also benefit from more independent boards.

The results of the study confirm partially the fourth hypothesis and show that board diversity (Higher proportion of women) improves social performance. This is consistent with recent thinking and discussions which point to the fact that governance reforms have been geared towards the importance of gender diversity especially in the boardroom and that the issue of gender diversity is central and could enhance boards effectiveness by tapping boarder talent pools for their directors resulting in more diverse board having better relations with other stakeholders such as customers, suppliers, and employees (Ellis and Key, 2003) which inevitably translate into performance and firm value (Kyereboah-Coleman, A, 2006).

Our fifth hypothesis is not confirmed by the empirical results. Although the internal auditor reporting to the board is way to reach board governance with information relative to internal firm governance, the results indicate that the internal board editor seems not to have any significant influence on MFIs performance. A similar result was found by Mersland R. & Oystein Strom R. (2007).#p#分页标题#e#

Although microfinance rating agencies rate the overall performance of the MFIs in terms of outreach and sustainability, the empirical results show that this variable haven’t any significant influence on MFIs performance. In addition, the study reveals that MFIs having their financial statement audited achieve better sustainability. These MFIs complies with accounting practices and are able to reach higher levels of financial performance.

Regulated MFIs do not reach more borrowers but according to results from table 4, have significant and positive ROA & OSS. Although this result is diverse from past studies which did not find any relation between these two dimensions: Mersland R. & Oystein Strom R. (2007), or find a weak relation: Hartarska (2005), it bring the evidence that regulation may assure customers that they are treated fairly and this could lead to more business and better financial performance.

Results indicate that the lending technology improve considerably the financial performance of the MFIs. This result can be attributed to the fact that the cost argument is more important than the repayment argument for group lending or village bank. The supposed efficiency in group lending does not hold Mersland R. & Oystein Strom R. (2007). From another point of view, it can be justified by the new tendency toward the individual microlending (Armendariz de Aghion and Morduch, 2005; Ben Soltane and Trigui, 2008), since this methodology becomes highly recommended (Armendariz de Aghion and Morduch, 2000). This study confirms well the study of Cull et al. (2007).

In conformity with the theory and formers studies such as Kyereboah-Coleman, A, (2006), the age of the firm as a proxy for reputation impact positively on performance likewise the size of the MFI. Expectedly, the size of MFI has a significant positive impact on performance. This may be due to the fact that a large firm has the ability to accommodate risk and to enhance productivity through diversification of products and services.

The study shows that NGOs are more efficient than NBFI and show better social performance by reaching the poor. It becomes clear that NGOs are more consistent with their social mission than with their financial performance. The results reveal also the significance of controlling for crosscountry differences. The level of inflation affects negatively the sustainability of MFIs. Comparable results were found by Hartarska (2005), in Central and Eastern Europe and the Newly Independent States. Finally, the study suggests that economy of big size affect outreach.

7. Conclusion and recommendations——结论和建议

This paper tests empirically the relationship between corporate governance and Euro-Mediterranean MFIs performance in terms of outreach and sustainability. While using data from a self-conducted survey as well as from the annual financial reports and from the Mix Market, the study examine the impact of management remuneration, board independence and diversity, internal auditor reporting directly to the board, external governance mechanisms of control, and MFIs and countries specifications. Results indicate that not all known governance mechanisms affect performance and in addition, different factors have differential effect on outreach and sustainability.#p#分页标题#e#

The study shows that explicit and implicit incentives schemes such as compensation, perks, etc become less powerful and less able to motivate managers (Dewatripont, Jewitt & Tirole, 1999). Results show also that larger boards are better for MFIs performance since members have a range of expertise to help to make better decision and are harder for powerful CEO to dominate. Moreover the study reveals that microfinance boards with larger proportions of unaffiliated directors achieve better results. Thus, independence of the microfinance board should be encouraged.

The fundamental result of this study is that board diversity (Higher proportion of women) enhances performance and again the more women there are on a board, the better the performance. Thus board diversity is paramount for enhanced performance of microfinance institution.

Having financial statement audited, and being rated by international agencies is synonym to a better financial performance. It seems that external governance mechanisms help MFIs to reach their financial performance. This study allows us to distinguish other factors leading also to a better sustainability such as Regulation and the use of individual lending methodology. However, the MFIs type (NGOs) seems to be more consistent with their social mission than with their financial performance. The microfinance institutions characteristics such as age and size affect positively the performance nevertheless, the level of inflation have a negative impact on the sustainability of MFIs.

Although this study bring some clarifications on the link between governance mechanisms and performance in microfinance, several governance mechanisms remains unexplored such as CEO duality, graduate board members, international directors, ownership structure. Thus, it seems relevant to conduct more studies in order to learn more about the impact of these governance mechanisms on outreach and sustainability of MFIs not only in the Euro-Mediterranean countries but also in other part of world.