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151. A Short Note on the Theme of Too Many Instruments

Author:
David Roodman
Publication Date:
08-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The “difference” and “system” generalized method of moments (GMM) estimators for dynamic panel models are growing steadily in popularity. The estimators are designed for panels with short time dimensions (T), and by default they generate instruments sets whose number grows quadratically in T. The dangers associated with having many instruments relative to observations are documented in the applied literature. The instruments can overfit endogenous variables, failing to expunge their endogenous components and biasing coefficient estimates. Mean while they can vitiate the Hansen J test for joint validity of those instruments, as well as the difference-in-Sargan/Hansen test for subsets of instruments. The weakness of these specification tests is a particular concern for system GMM, whose distinctive instruments are only valid under a non-trivial assumption. Judging by current practice, many researchers do not fully appreciate that popular implementations of these estimators can by default generate results that simultaneously are invalid yet appear valid. The potential for type I errors—false positives—is therefore substantial, especially after amplification by publication bias. This paper explains the risks and illustrates them with reference to two early applications of the estimators to economic growth, Forbes (2000) on income inequality and Levine, Loayza, and Beck (LLB, 2000) on financial sector development. Endogenous causation proves hard to rule out in both papers. Going forward, for results from these GMM estimators to be credible, researchers must report the instrument count and aggressively test estimates and specification test results for robustness to reductions in that count.
Topic:
Development, Economics, Political Economy, and Third World

152. Pathways Out of Poverty During an Economic Crisis: An Empirical Assessment of Rural Indonesia

Author:
Peter Timmer and Neil McCulloch
Publication Date:
03-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Most poor people in developing countries still live in rural areas and are primarily engaged in low productivity farming activities. Thus pathways out of poverty are likely to be strongly connected to productivity increases in the rural economy, whether they are realised in farming, rural non-farm enterprises or via rural-urban migration. We use cross-sectional data from the Central Statistical Board (BPS) for 1993 and 2002, as well as a panel data set from the Indonesia Family Life Survey (IFLS) for 1993 and 2000, to show which pathways out of poverty were most successful over this period. Our findings suggest that increased engagement of farmers in rural non-farm enterprises is an important route out of rural poverty, but that most of the rural agricultural poor that exit poverty still do so while remaining rural and agricultural. Thus changes in agricultural prices, wages and productivity still play a critical role in moving people out of poverty.
Topic:
Development, Economics, and Political Economy
Political Geography:
Indonesia and Asia

153. Group Versus Individual Liability: A Field Experiment in the Philippines

Author:
Xavier Giné and Dean Karlan
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Group liability is often portrayed as the key innovation that led to the explosion of the microcredit movement, which started with the Grameen Bank in the 1970s and continues on today with hundreds of institutions around the world. Group liability claims to improve repayment rates and lower transaction costs when lending to the poor by providing incentives for peers to screen, monitor and enforce each other's loans. However, some argue that group liability creates excessive pressure and discourages good clients from borrowing, jeopardizing both growth and sustainability. Therefore, it remains unclear whether group liability improves the lender's overall profitability and the poor's access to financial markets. We worked with a bank in the Philippines to conduct a field experiment to examine these issues. We randomly assigned half of the 169 pre-existing group liability “centers” of approximately twenty women to individual-liability centers (treatment) and kept the other half as-is with group liability (control). We find that converting to individual liability from group liability but keeping other aspects of group lending such as weekly repayment meeting does not affect the repayment rate, but leads to higher outreach by attracting new clients.
Topic:
Economics, Markets, and Poverty
Political Geography:
Philippines and Southeast Asia

154. Credit Elasticities in Less-Developed Economies: Implications for Microcredit

Author:
Dean Karlan and Jonathan Zinman
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Policymakers often prescribe that microfinance institutions increase interest rates to eliminate reliance on subsidies. This strategy makes sense if the poor are rate insensitive: then microlenders increase profitability (or achieve sustainability) without reducing the poor's access to credit. We test the assumption of price inelastic demand using randomized trials conducted by a consumer lender in South Africa. The demand curves are downward-sloping, and steep for price increases relative to the lender's standard rates. We also find that loan size is far more responsive to changes in loan maturity than to changes in interest rates, which is consistent with binding liquidity constraints.
Topic:
Development, Economics, and Markets
Political Geography:
Africa and South Africa

155. Female Empowerment: Impact of a Commitment Savings Product in the Philippines

Author:
Dean Karlan, Wesley Yin, and Nava Ashraf
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Female “empowerment” has increasingly become a policy goal, both as an end to itself and as a means to achieving other development goals. Microfinance in particular has often been argued, but not without controversy, to be a tool for empowering women. Here, using a randomized controlled trial, we examine whether access to an individually-held commitment savings product leads to an increase in female decision-making power within the household. We find positive impacts, particularly for women who have below median decision-making power in the baseline, and we find this leads to a shift towards female-oriented durables goods purchased in the household.
Topic:
Development, Economics, and Gender Issues
Political Geography:
Southeast Asia

156. Why Are There So Few Black-Owned Firms in Africa? Preliminary Results from Enterprise Survey Data

Author:
Vijaya Ramachandran and Manju Kedia Shah
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Much of the growth in Sub-Saharan Africa in the past decade has come from extractive industries, rather than from private, entrepreneurial activity. Furthermore, non-extractive activity in the private sector is often dominated by firms owned by ethnic minorities. This paper analyzes the characteristics of the formal private sector in five countries in sub-Saharan Africa, with a particular emphasis on Black African-owned (indigenous) firms. We find that indigenous firms start smaller and grow more slowly; however their rate of growth is positively influenced by whether the owner-entrepreneur has a university degree. We do not find overwhelming evidence that credit is the binding constraint but we do find that indigenous firms get less access to trade credit than firms owned by minority entrepreneurs. Finally, we discuss policy solutions that might enable a larger number of indigenous entrepreneurs to enter and survive in a vibrant, multi-ethnic private sector.
Topic:
International Relations, Development, Economics, and Humanitarian Aid
Political Geography:
Africa

157. An Index of Donor Performance

Author:
David Roodman
Publication Date:
11-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The Commitment to Development Index of the Center for Global Development rates 21 rich countries on the “development-friendliness” of their policies. It is revised and updated annually. The component on foreign assistance combines quantitative and qualitative measures of official aid, and of fiscal policies that support private charitable giving. The quantitative measure uses a net transfers concept, as distinct from the net flows concept in the net Official Development Assistance measure of the Development Assistance Committee. The qualitative factors are: a penalty for tying aid; a discounting system that favors aid to poorer, better-governed recipients; and a penalty for “project proliferation.” The charitable giving measure is based on an estimate of the share of observed private giving to developing countries that is attributable to a) lower overall taxes or b) specific tax incentives for giving. De-spite the adjustments, overall results are dominated by differences in quantity of official aid given. This is because while there is a seven-fold range in net concessional transfers/GDP among the scored countries, variation in overall aid quality across donors appears far lower, and private giving is generally small. Denmark, the Netherlands, Norway, and Sweden score highest while the largest donors in absolute terms, the United States and Japan, rank at or near the bottom. Standings by the 2006 methodology have been relatively stable since 1995.
Topic:
International Relations, Development, Economics, and Humanitarian Aid
Political Geography:
United States, Japan, Norway, and Netherlands

158. A Millennium Learning Goal: Measuring Real Progress in Education

Author:
Lant Pritchett, Amer Hasan, and Deon Filmer
Publication Date:
08-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The Millennium Development Goal for primary schooling completion has focused attention on a measurable output indicator to monitor increases in schooling in poor countries. We argue the next step, which moves towards the even more important Millennium Learning Goal, is to monitor outcomes of learning achievement. We demonstrate that even in countries meeting the MDG of primary completion, the majority of youth are not reaching even minimal competency levels, let alone the competencies demanded in a globalized environment. Even though Brazil is on track to the meet the MDG, our estimates are that 78 percent of Brazilian youth lack even minimally adequate competencies in mathematics and 96 percent do not reach what we posit as a reasonable global standard of adequacy. Mexico has reached the MDG—but 50 percent of youth are not minimally competent in math and 91 percent do not reach a global standard. While nearly all countries' education systems are expanding quantitatively nearly all are failing in their fundamental purpose. Policymakers, educators and citizens need to focus on the real target of schooling: adequately equipping their nation's youth for full participation as adults in economic, political and social roles. A goal of school completion alone is an increasingly inadequate guide for action. With a Millennium Learning Goal, progress of the education system will be judged on the outcomes of the system: the assessed mastery of the desired competencies of an entire age cohort—both those in school and out of school. By focusing on the learning achievement of all children in a cohort an MLG eliminates the false dichotomy between “access/enrollment” and “quality of those in school”: reaching an MLG depends on both.
Topic:
International Relations, Development, Economics, and Education
Political Geography:
Brazil and Mexico

159. Fragile States and U.S. Foreign Assistance: Show Me the Money

Author:
Stewart Patrick and Kaysie Brown
Publication Date:
08-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The Bush administration has increasingly acknowledged that weak and failing states represent the core of today's global development challenge. It has also recognized that such states are potential threats to international peace and security. But despite the rhetoric, it has yet to formulate a coherent strategy around fragile states or commit adequate resources towards engaging them. Excluding funding for Iraq, Afghanistan, Pakistan, and HIV/AIDS, the administration's FY07 budget request proposes to spend just $1.1 billion in direct bilateral assistance to fragile states—little more than a dollar per person per year. In this new working paper, CGD research fellow Stewart Patrick and program associate Kaysie Brown urge U.S. policymakers to consider increasing aid to fragile states and to think creatively about how and when to engage these troubled countries. The authors also call for the policy community to integrate non-aid instruments into a more coherent government strategy. To put its money where its mouth is, the U.S. should treat aid to weak and failing states as a form of venture capital, with high risk but potentially high rewards.
Topic:
Economics, Government, and Humanitarian Aid
Political Geography:
Pakistan, Afghanistan, United States, and Iraq

160. A Policymakers' Guide to Dutch Disease

Author:
Owen Barder
Publication Date:
07-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
It is sometimes claimed that an increase in aid might cause Dutch Disease—that is, an appreciation of the real exchange rate which can slow the growth of a country's exports— and that aid increases might thereby harm a country's long-term growth prospects. This essay argues that it is unlikely that a long-term, sustained and predictable increase in aid would, through the impact on the real exchange rate, do more harm than good, for three reasons. First, there is not necessarily an adverse impact on exports from Dutch Disease, and any impact on economic growth may be small. Second, aid spent in part on improving the supply side—investments in infrastructure, education, government institutions and health—result in productivity benefits for the whole economy, which can offset any loss of competitiveness from the Dutch Disease effect. Third, the welfare of a nation's citizens depends on their consumption and investment, not just output. Even on pessimistic assumptions, the additional consumption and investment which the aid finances is larger than any likely adverse impact on output. However, the macroeconomic effects of aid can cause substantial harm if the aid is not sustained until its benefits are realized. The costs of a temporary loss of competitiveness might well exceed the benefits of the short-term increase in aid. To avoid doing harm, aid should be sustained and predictable, and used in part to promote economic growth. This maximizes the chances that the long-term productivity and growth benefits will offset the adverse effects—which may be small if they exist at all—that big aid surges may pose as a result of Dutch Disease.
Topic:
Economics, Health, and Humanitarian Aid
Political Geography:
Europe

161. Will Debt Relief Make a Difference? Impact and Expectations of the Multilateral Debt Relief Initiative

Author:
Todd Moss
Publication Date:
05-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The Multilateral Debt Relief Initiative (MDRI) is the latest phase of debt reduction for poor countries from the World Bank, the IMF, and the African Development Bank. The MDRI, which will come close to full debt reduction for at least 19 (and perhaps as many as 40) qualifying countries, is being presented as a momentous leap forward in the battle against global poverty. However, the analysis in this paper suggests that the actual gains may be more modest and elusive. This is not because, as some anti-debt campaigners fear, that the initiative is a mere accounting trick. Rather, the limited short-term financial impact of the MDRI on affected countries is because the debt service obligations being relived were themselves relatively insignificant. For example, in 2004 the average African country in the program paid $19 million in debt service to the World Bank, but received 10 times that amount in new Bank credit and more than 50 times as much in total aid. Just as importantly, finances are rarely the binding constraint on poverty and other development outcomes. This is not to say that the MDRI is futile. Indeed the impact could be considerable over the long-term, especially on the ability of creditors to be more selective in the future. But most of the impact of the MDRI will be long-term and difficult to measure. As such, expectations of the effect on indebted countries and development indicators should be kept modest and time horizons long.
Topic:
Debt, Development, Economics, and International Organization
Political Geography:
Africa

162. The U.S. External Deficit and the Developing Countries

Author:
William R. Cline
Publication Date:
03-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
In the absence of US fiscal adjustment and a further correction of the dollar, the current account deficit is headed to $1.3 trillion by 2010 (8 to 8.5 percent of GDP) and net US foreign liabilities to over $8 trillion (50 percent of GDP). According to CGD/IIE Senior Fellow William R. Cline, the rising trade deficit and associated borrowing from abroad are now financing a decline in personal saving and a rise in the government deficit. This imbalance will increasingly put the US economy—and the developing countries—at risk. This working paper focuses on the impact that the US external deficit and a possible “hard landing” for the US and world economies will have on developing countries. Cline finds that these countries are at risk since they have relied heavily on a continuing expansion of trade surpluses with the United States as a source of demand. Developing countries with high borrowing abroad are also doubly sensitive to a spike in world interest rates—once directly from higher US interest rates, and once indirectly through higher risk spreads—that might be associated with a hard landing. This Working Paper is based on The United States as a Debtor Nation, a book published in 2005 by the Center for Global Development and the Institute for International Economics.
Topic:
Development, Economics, and Third World
Political Geography:
United States

163. The Economics of Young Democracies: Policies and Performance

Author:
Nathan Converse and Ethan Kapstein
Publication Date:
03-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Since the “third wave” of democratization began in 1974, nearly 100 states have adopted democratic forms of government, including, of course, most of the former Soviet bloc nations. Policy-makers in the west have expressed the hope that this democratic wave will extend even further, to the Middle East and onward to China. But the durability of this new democratic age remains an open question. By some accounts, at least half of the world's young democracies—often referred to in the academic literature as being “unconsolidated” or “fragile”—are still struggling to develop their political institutions, and several have reverted back to authoritarian rule. Among the countries in the early stages of democratic institution building are states vital to U.S. national security interests, including Afghanistan and Iraq.
Topic:
Democratization, Development, Economics, and Government
Political Geography:
Afghanistan, China, and Iraq

164. Back to the Future for African Infrastructure? Why State-Ownership Is No More Promising the Second Time Around

Author:
John Nellis
Publication Date:
02-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Too many African state-owned enterprises (SOEs), particularly those in infrastructure sectors, have a long history of poor performance. African governments and donors labored through the 1970s and 1980s to improve SOE performance through “commercialization”——i.e., methods short of ownership change. These generally failed, giving rise, in the 1990s, to much more heavy reliance on private sector participation and ownership. This approach produced some successes, but Africa's private participation in infrastructure (PPI) initiatives have been comparatively few and weak. A number of those that have been launched have run into problems, to the point where both investor and African government interest in the approach has waned in the last few years. The reform is not popular——surveys of public opinion in 15 African countries reveal that only a third of respondents prefer private to state-owned firms. Nonetheless, African states (and their supporters) should not jettison the PPI approach. Rather, they should acknowledge its limitations, and recognize the large scope and moderate pace of the preparatory measures required both to improve their investment climates and to make PPI work effectively.
Topic:
Development, Economics, and Non-Governmental Organization
Political Geography:
Africa

165. Tax policies to promote private charitable giving in DAC countries

Author:
David Roodman and Scott Standley
Publication Date:
02-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Researchers have written hundreds of papers on the causes and consequences of official foreign aid, while paying almost no attention to private overseas giving, by individuals, universities, foundations, and corporations. Yet private giving is significant—some $15.5 billion/year, compared to more than $60 billion/year in public giving—and is in no small part an outcome of public policy. In most rich countries, tax deductions and credits lower the “price” of charity to donors. And governments with low tax revenue/GDP ratios leave more money in private pockets for private charity. To correct the near-complete lack of information on this de facto aid policy, we survey officials of 21 donor nations on the use of tax incentives to promote private charity. From the results, we develop an index of the overall incentive for private charity, expressed as a percentage increase over the hypothetical giving level absent incentives. France's tax code creates the largest price incentive while those of Austria, Finland, and Sweden offer none. Factoring in the income effect of the tax ratio, Australia, Ireland, Germany, and the United States move to the top, with combined price and income effects sufficient to double private giving. As a result, tax policy appears to have nearly doubled private overseas giving from donor countries in 2003, from a counterfactual $8.0 billion. Two-thirds of the $7.5 billion increase occurred in the United States. Of that, nearly 40% appears to be U.S. charity to Israel. According to 21-country scatter plots, countries with lower church attendance and more faith in the national legislature have lower taxes (stronger income effect), but average levels of targeted tax incentives. Income (GDP/capita) does correlate with private overseas aid/capita, but also with public aid/capita, so that the two aid flows are complementary in magnitude.
Topic:
Debt, Economics, Humanitarian Aid, and International Trade and Finance
Political Geography:
United States, Finland, Germany, Australia, Sweden, Ireland, and Austria

166. Stormy Days on an Open Field: Asymmetries in the Global Economy

Author:
Nancy Birdsall
Publication Date:
02-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Openness is not necessarily good for the poor. Reducing trade protection has not brought growth to today's poorest countries, and open capital markets have not been good for the poorest households in emerging market economies. In this paper I present evidence on these two points. First, countries highly dependent on primary exports two decades ago, despite their substantial engagement in trade and a marked decline in their tariff rates in the 1990s, have failed to grow. Second, within high-debt emerging market economies the financial crises of the last decade, whether induced by domestic policy problems or global contagion, have been especially costly for the poor (in welfare terms if not in terms of absolute income losses). I discuss the asymmetries in the global economy that help explain why countries and people cannot always compete on equal terms on the “level playing field” of the global economy.
Topic:
Economics, Globalization, International Trade and Finance, Poverty, and Financial Crisis

167. The Costs and Benefits of Front-loading and Predictability of Immunization

Author:
Owen Barder and Ethan Yeh
Publication Date:
02-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
How can the international community save more children's lives faster and more effectively in the 21st century? This Working Paper analyzes the extent to which “frontloading” and predictable vaccine funding, as proposed by the International Finance Facility for Immunization (IFFIm), is more effective in impacting vaccine coverage than spending vaccine funds equally throughout the lives of projects. The IFFIm is an initiative of the Global Alliance for Vaccines and Immunization (GAVI), and supported by the governments of the United Kingdom, France, Sweden, Italy, Spain and Norway. An initial IFFIm investment of $4 billion is expected to prevent 5 million child deaths by 2015, and more than 5 million future adult deaths. Using a stylized model, the authors quantify the positive and negative effects of predictable vaccine funds and frontloading, and finds IFFIm's approach can increase the impact of vaccine coverage by 22%. This is because stable and long-term financing allows vaccine manufacturers and countries to plan for long periods of time, knowing that resources will be available. Front-loading helps to reduce the spread of disease and to immunize large groups of people faster.
Topic:
Economics, Health, Human Welfare, and International Cooperation
Political Geography:
United Kingdom, Norway, France, Spain, Italy, and Sweden

168. How Multinational Investors Evade Developed Country Laws

Author:
Theodore H. Moran
Publication Date:
02-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
How effective are G-8 and OECD efforts to combat bribery and corrupt payments when multinational companies bid on concessions in the developing world? Have the rich countries – and the United States, in particular – done what is necessary to restrain multinational investors from paying off daughters of Presidents and cronies of Ministers to secure favors for their activities?
Topic:
International Relations, Corruption, and Economics
Political Geography:
United States

169. A Stability and Social Investment Facility for High Debt Countries

Author:
Nancy Birdsall and Kemal Derviş
Publication Date:
01-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
A number of high-debt emerging-market economies face structural, long-term debt problems that tend to keep their growth rates low, that impart an unequalizing bias to the growth process, that severely constrain social spending and human development, and that make them vulnerable to capital flow reversals. Unless the nature and pace of growth can be improved in these lower-middle income countries, the Millennium Development Goals (MDGs) are unlikely to be met either in many of these countries, or globally. These high-debt emerging-market economies face an impossible choice between draconian and never-ending fiscal austerity, or crisis and a “debt event.” Both “bitter pills" impose high social and economic costs.
Topic:
Civil Society, Debt, Economics, and International Organization

170. Privatization--A Summary Assessment

Author:
John Nellis
Publication Date:
03-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
In the last 25 years many thousands of formerly state-owned and operated firms have been privatized in developing and transition countries, generating over $400 billion (US) in sales proceeds. In addition, thousands of firms have been transferred by privatization processes in which no money was raised (though a surprising number of state-owned firms remain in these regions). The vast majority of economic studies praise privatization's positive impact at the level of the firm, as well as its positive macroeconomic and welfare contributions. Moreover, contrary to popular conception, privatization has not contributed to maldistribution of income or increased poverty——at least in the best-studied Latin American cases. In sum, the technical picture is generally positive. Nonetheless, public opinion in the less developed world is generally suspicious of, and often hostile to, privatization. A good part of the problem is that privatization has proven harder to launch, and is more likely to produce errant results, in low-income, institutionally weak states, particularly in the most important infrastructure sectors. Privatization is hard to sell politically; it has become a lightning rod and handy scapegoat for all discontent related to liberalization and globalization. What is needed are reform mechanisms that give incentives and comfort to reputable private investors, that create and sustain the policy and regulatory institutions that make governments competent and honest partners with the private operators, while at the same time protecting consumers, particularly the most disadvantaged, from abuse.</p
Topic:
Development, Economics, Political Economy, and Privatization
Political Geography:
Latin America