This paper demonstrates that, since 1945, migration policies have overall become less
restrictive. Challenging common assumptions, this long-term trend is robust across most of …

This paper reviews four decades of economics research on the brain drain, with a focus on
recent contributions and on development issues. We first assess the magnitude, intensity …

This paper synthesizes insights from new global data on the effectiveness of migration
policies. It investigates the complex links between migration policies and migration trends to …

Climate change, especially the warming trend experienced in recent years by several
countries, could affect agricultural productivity. As a consequence the income of rural …

Growing social and economic inequalities, and consequently, unfulfilled life aspirations
trigger the migration intentions of millions, if not billions of people around the world. Surveys …

We propose an index of population diversity based on people's birthplaces and decompose
it into a size (share of immigrants) and a variety (diversity of immigrants) component. We …

Will economic development in poor countries cause less migration, or more? this simple
question has tremendous relevance to the future of migration policy as the world develops …

This article makes two contributions to the literature on the determinants of international
migration flows. First, we compile a new dataset on annual bilateral migration flows covering …

The use of bilateral data for the analysis of international migration is at the same time a
blessing and a curse. It is a blessing because the dyadic dimension of the data allows …

This article elaborates a conceptual framework for assessing the character and effectiveness
of immigration policies. It argues that, to a considerable extent, the public and academic …