The need to address extreme poverty from the perspective of marginality arises from the frustration that the number of the poorest and hungry remains unacceptably high. This triggered the call for an innovative approach from the side of science and action. The conceptual and analytical framework...

Food security—consistent access to enough food for an active, healthy life—is essential for health and good nutrition. The extent to which a nation’s population achieves food security is an indication of its material and social well-being. Differences in the prevalence of household level...

Extreme poverty is an immense political and market failure, wasting the potential of hundreds of millions of people. Investing in the creation of markets that include the extreme poor and marginalized should thus not only be considered as a charitable activity, but promises high returns on...

The first 50 years of the Federal crop insurance program were marked by low enrollment levels. To boost program participation, legislation in 1994 and 2000 increased premium subsidies. In the years since, the jump in enrollment coupled with high commodity prices caused significant increases in...

Cross-price elasticities are updated in this report, using the World Bank’s 2005 International Comparison Program (ICP) data for 9 major consumption categories across 144 countries. The 2005 ICP offers the most recent consistent data set for such a large number of countries. The consumption...

A migration network is modeled as a mutually beneficial cooperative agreement between financially-constrained individuals who seek to finance and expedite their migration. The cooperation agreement creates a network: “established” migrants contract to support the subsequent migration of...

Strong ties with the home country and with the host country can coexist. An altruistic migrant who sends remittances to his family back home assimilates more the more altruistic he is, and also more than a non-remitting migrant.

This paper studies the growth dynamics of a developing country under migration. Assuming that human capital formation is subject to a strong enough, positive intertemporal externality, the prospect of migration will increase growth in the home country in the long run. If the external effect is...

In the model of Stark et al. (1997, 1998), the possibility of employment in a developed country raises the level of human capital acquired by workers in the developing country. We show that this result holds even when workers have the option to save.

This paper considers the integration of economies as a merger of populations. The premise is that the merger of groups of people alters their social landscape and their comparators. The paper identifies the effect of the merger on aggregate distress. A merger is shown to increase aggregate...