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Publications (25)
In recent years, experimental methods have been both highly celebrated, and roundly criticized, as a means of addressing core questions in the social sciences. They have received particular attention in the analysis of development interventions. The studies in this special issue push beyond...
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Social scientists are increasingly engaging in experimental research projects of importance for public policy in developing areas. While this research holds the possibility of producing major social benefits, it may also involve manipulating populations, often without consent, sometimes with...
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– Definitions and Diagrams
The fundamental problem of external validity is not to generalize from one experiment, so much as to experimentally test generalizable theories. That is, theories that explain the systematic variation of causal effects across contexts. Here we show how the graphical language of causal diagrams can...
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In recent years, randomized controlled trials have become increasingly popular in the social sciences. In development economics in particular, their use has attracted considerable debate in relation to the identification of ‘what works’ in development policy. This paper focuses on a core topic in...
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– Opportunities and Challenges
‘Ancillary experiments’ are a new technique whereby researchers use a completed experiment conducted by others to recover causal estimates of a randomized intervention on new outcomes. The method requires pairing new outcome data with randomized treatments the researchers themselves did not oversee...
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– Towards Experiments?
In examining the study of government performance, this paper asks whether field experiments can improve the explanatory precision of results generated by public opinion surveys. Survey research on basic health and education services sub-Saharan Africa shows that the perceived ‘user friendliness’ (or...
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– Experimental and Non-Experimental Methods in Development Economics
This paper provides a survey of six widely used non-experimental methods for estimating the impact of programmes in the context of developing economies (instrumental variables, regression discontinuity, direct matching, propensity score matching, linear regression and non-parametric methods, and...
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– Better Policies? Better Politics?
The paper provides a comparative analysis of the incidence of evaluation methods in antipoverty transfer programmes in Latin America and sub-Saharan Africa. The paper identifies two broad explanations for the incidence of evaluation in antipoverty transfer programmes in developing countries, one...
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– Lessons for Policy
The most important economic feature of immigration to the United States in the post-1965 period has been a significant deterioration in the economic performance of successive immigrant waves. The policy reaction to this trend would obviously differ if the entry wage disadvantage disappeared quickly...
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It is important to make a careful distinction between illegal immigration, human smuggling, and human trafficking which are nested, but yet different concepts. This distinction is relevant because these different categories of the illegal movement of people across borders have quite different legal...
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– Past Trends, Future Possibilities
This article examines the policy responses of Western countries in the realm of asylum. We begin by explaining the reasons why the asylum issue has made its way up the political agendas of liberal democratic countries in recent years. While applications for asylum have risen in the last two decades...
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Increasingly, immigration policies tend to favour the entry of skilled workers, raising substantial concerns among sending countries. The ‘revisionist’ approach to the analysis of the brain drain holds that such concerns are largely unwarranted. First, sustained migratory flows may be associated...
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We examine the ways in which candidate countries which are to join the EU in 2004 are responding to increasing asylum migration from the East and assess the impact of accession on their asylum and immigration laws and policies. It will be argued that recent changes in asylum and immigration laws in...
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Irregular migration is increasing in the Caribbean while the opportunities for applying for asylum hardly exist. The policy regarding most Caribbean irregular migrants is based on the view of the potential destinations, namely that the migrants are economic rather than political refugees. Whatever...
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– Estimating the Potential Gains from Increased International Migration
In this paper we elaborate on the findings produced by an applied equilibrium model that is used to calculate the annual efficiency gains from free international migration. These findings suggest that we can expect significant gains from liberalizing international labour flows. In particular, we...
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– Poverty among Immigrants in Denmark and Sweden since 1984
The paper focuses on the problems of low income among immigrants, analysed by using comparable panel datasets for two Scandinavian welfare states. After a brief survey of a few earlier studies on immigrant poverty, we present Denmark and Sweden as interesting cases for comparative research. Cyclical...
Displaying 16 of 25 results