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11. Does Development Reduce Migration?

Author:
Michael Clemens
Publication Date:
03-2014
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The most basic economic theory suggests that rising incomes in developing countries will deter emigration from those countries, an idea that captivates policymakers in international aid and trade diplomacy. A lengthy literature and recent data suggest something quite different: that over the course of a "mobility transition", emigration generally rises with economic development until countries reach upper-middle income, and only thereafter falls. This note quantifies the shape of the mobility transition in every decade since 1960. It then briefly surveys 45 years of research, which has yielded six classes of theory to explain the mobility transition and numerous tests of its existence and characteristics in both macro- and micro-level data. The note concludes by suggesting five questions that require further study.
Topic:
Economics, Migration, Social Stratification, Social Movement, and Developing World
Political Geography:
United States, Canada, and Mexico

12. A Case against Taxes and Quotas on High-Skill Emigration

Author:
Michael Clemens
Publication Date:
05-2014
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Skilled workers have a rising tendency to emigrate from developing countries, raising fears that their departure harms the poor. To mitigate such harm, researchers have proposed a variety of policies designed to tax or restrict high-skill migration. Those policies have been justified as Pigovian regulations to raise efficiency by internalizing externalities, and as non-Pigovian regulations grounded in equity or ethics. This paper challenges both sets of justifications, arguing that Pigovian regulations on skilled emigration are inefficient and non-Pigovian regulations are inequitable and unethical. It concludes by discussing a different class of policy intervention that, in contrast, has the potential to raise welfare.
Topic:
Economics, Human Rights, Human Welfare, Immigration, and Monetary Policy
Political Geography:
India

13. The New Transparency in Development Economics: Lessons from the Millennium Villages Controversy

Author:
Michael Clemens and Gabriel Demombynes
Publication Date:
09-2013
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The Millennium Villages Project is a high profile, multi-country development project that has aimed to serve as a model for ending rural poverty in sub-Saharan Africa. The project became the subject of controversy when the methodological basis of early claims of success was questioned. The lively ensuing debate offers lessons on three recent mini-revolutions that have swept the field of development economics: the rising standards of evidence for measuring impact, the “open data” movement, and the growing role of the blogosphere in research debates.
Topic:
Development, Economics, Poverty, and Foreign Aid
Political Geography:
Africa

14. Beyond Aid: Migration as a Tool for Disaster Recovery

Author:
Michael Clemens and Kaci Farrell
Publication Date:
06-2011
Content Type:
Policy Brief
Institution:
Center for Global Development
Abstract:
Natural disasters such as earthquakes, floods, and hurricanes can devastate people's lives and a country's economy, particularly in the developing world. More than 200,000 people perished when a catastrophic earthquake struck Haiti in January 2010, and Americans responded with an outpouring of private and public assistance. Those relief efforts, as they nearly always do, focused primarily on delivering aid. The United States barely used another tool for disaster relief: migration policy. This policy brief explores the various legal channels through which the U.S. government could, after future overseas disasters, leverage the power of migration to help limited numbers of people. We describe what could have been done for Haiti, but the lessons apply to future scenarios.
Topic:
Humanitarian Aid, Migration, Natural Disasters, and Foreign Aid
Political Geography:
United States

15. Economics and Emigration: Trillion-dollar Bills on the Sidewalk?

Author:
Michael Clemens
Publication Date:
08-2011
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Large numbers of people born in poor countries would like to leave those countries, but barriers prevent their emigration. Those barriers, according to economists' best estimates to date, cost the world economy much more than all remaining barriers to the international movement of goods and capital combined. Yet economists spend much more time studying the movement of goods and capital, and when they study migration at all, they focus on the effects of immigration on nonmigrants in destination countries. I ask why this is the case and sketch a four-point research agenda on the effects of emigration. Barriers to emigration deserve a research priority that is commensurate with their likely colossal economic effects.
Topic:
Economics, Migration, Poverty, and Immigration

16. Migration as a Tool for Disaster Recovery: U.S. Policy Options in the Case of Haiti

Author:
Michael Clemens and Tejaswi Velayudhan
Publication Date:
10-2011
Content Type:
Policy Brief
Institution:
Center for Global Development
Abstract:
The United States should take modest steps to create a legal channel for limited numbers of people fleeing natural disasters overseas to enter the United States. This would address two related problems: the lack of any systematic U.S. policy to help the growing numbers of people displaced across borders by natural disasters and the inability of U.S. humanitarian relief efforts to reduce systemic poverty or sustainably improve victims' livelihoods. The aftermath of the 2010 Haiti earthquake presents a compelling case study of the administrative and legislative ways the U.S. government could address both problems. Migration is already a proven and powerful force for reducing Haitians' poverty. A few modest changes in the U.S. approach could greatly aid Haiti's recovery.
Topic:
Humanitarian Aid, Migration, and Developing World
Political Geography:
United States, Caribbean, and Haiti

17. A Labor Mobility Agenda for Development

Author:
Michael Clemens
Publication Date:
01-2010
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Rich countries have made efforts for half a century to help people in poor countries catch up to rich-country standards of living. Those efforts have included giving foreign aid, encouraging overseas investment, dismantling trade barriers, and spreading ideas and institutions. That is, their international development policy has been to encourage the globalization of almost all factors of production—except labor. So far, this policy has failed to cause the living standards of most people in most developing countries to converge with living standards in rich countries. But the globalization of labor—greater mobility for workers across borders—quickly and massively raises migrants' living standards toward those of rich countries. This paper argues that every rich country should consider its immigration policy to be part of its international development policy, and vice versa. A development policy that includes migration will be more effective; an immigration policy that includes development will better serve rich countries' ideals and interests. The paper also gives a non-technical review of new research on several common objections to unifying development policy and migration policy. One concrete way forward is for rich countries to greatly open up legal pathways for temporary labor movement.
Topic:
Globalization, Foreign Aid, and Labor Issues

18. When Does Rigorous Impact Evaluation Make a Difference? The Case of the Millennium Villages

Author:
Michael Clemens and Gabriel Demombynes
Publication Date:
10-2010
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
When is the rigorous impact evaluation of development projects a luxury, and when a necessity? We study one high-profile case: the Millennium Villages Project (MVP), an experimental and intensive package intervention to spark sustained local economic development in rural Africa. We illustrate the benefits of rigorous impact evaluation in this setting by showing that estimates of the project's effects depend heavily on the evaluation method. Comparing trends at the MVP intervention sites in Kenya, Ghana, and Nigeria to trends in the surrounding areas yields much more modest estimates of the project's effects than the before-versus-after comparisons published thus far by the MVP. Neither approach constitutes a rigorous impact evaluation of the MVP, which is impossible to perform due to weaknesses in the evaluation design of the project's initial phase. These weaknesses include the subjective choice of intervention sites, the subjective choice of comparison sites, the lack of baseline data on comparison sites, the small sample size, and the short time horizon. We describe how the next wave of the intervention could be designed to allow proper evaluation of the MVP's impact at little additional cost.
Topic:
Development, Economics, and Foreign Aid
Political Geography:
Africa and Nigeria

19. The Roots of Global Wage Gaps: Evidence from Randomized Processing of U.S. Visas

Author:
Michael Clemens
Publication Date:
06-2010
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
This study uses a unique natural experiment to test a simple model of international differences in workers' wages and productivity. Large differences in wages across countries could arise from several sources. These include barriers to trade in outputs, differences in technology, differences in workers, or differences in the other factors of production accessible in different countries. To measure the relative importance of these sources in one setting, this study exploits the randomized processing of U.S. visas for a group of Indian workers who produce software within a single multinational firm. In this setting, international barriers to trade in outputs, barriers to technology transfer, and all observable or unobservable differences between workers are extremely low. The results indicate that location outside of India causes a sixfold increase in the wages of the same worker using the same technology to produce a highly tradable good. Under plausible assumptions about competition in the industry, this suggests that country-of-work by itself is responsible—in this industry—for roughly three-quarters of the gap in productivity between workers in India and workers in the richest countries. These findings have implications for open questions in labor, growth, international, and development economics.
Topic:
Economics and Labor Issues
Political Geography:
United States and India

20. Blunt Instruments: On Establishing the Causes of Economic Growth

Author:
Michael Clemens and Samuel Bazzi
Publication Date:
05-2009
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Despite intense concern that many instrumental variables used in growth regressions may be weak, invalid, or both, top journals continue to publish studies of economic growth based on problematic instruments. Doing so risks pushing the entire literature closer to irrelevance. We illustrate hidden problems with identification in recent prominently published and widely cited growth studies using their original data. We urge researchers to take three steps to overcome the shortcomings: grounding research in somewhat more generalized theoretical models, deploying the latest methods to test sensitivity to violations of the exclusion restriction, and opening the “black box” of the Generalized Method of Moments (GMM) with supportive evidence of instrument strength.
Topic:
Development, Economics, and Political Economy