A collection of 33 Escherichia coli serogroup O15 strains was studied with regard to O:H serotypes and virulence markers and for detection of the O-antigen-specific genes wzx and wzy. The strains were from nine different countries, originated from healthy or diseased humans and animals and from food, and were isolated between 1941 and 2003. On the basis of virulence markers and clinical data th...

Temporary and Permanent Migrant Selection: Theory and Evidence of Ability-Search Cost Dynamics* The migrant selection literature concentrates primarily on spatial patterns. This paper illustrates the implications of migration duration for patterns of selection by integrating two workhorses of the labor literature, a search model and a Roy model. Theory and empirics show temporary migrants are i...

The typical form of redistribution investigated in the lab resembles progressive redistribution in which money is transferred from rich to poor. There are, however, many governmental policies that involve regressive redistribution from poor to rich. Examples range from the TARP in the US to R&D subsidies for corporations and a variety of benefits given to firms in developing countries to encour...

How does the introduction of rural public work schemes impact individual incentives to migrate? This paper examines this question in the context of rural public work program (Yigong-daizhen) in China, and unveils empirical evidence that suggest that the introduction of Yigong-daizhen projects in fact stimulates outmigration at the village level, after controlling for village characteristics, pr...

In this paper we review the evidence on the impact of large shocks, such as drought, on child and adult health, with particular emphasis on Zimbabwe and Ethiopia. Our focus is on the impact of shocks on long-term outcomes, and we ask whether there are intrahousehold differences in these effects. The evidence suggests substantial fluctuations in body weight and growth retardation in response to ...

Impact of Paternal Temporary Absence on Children Left Behind Using the first two waves of the Vietnam Living Standards Survey, we investigate how a father’s temporary absence affects children left behind in terms of their school attendance, household expenditures on education, and nonhousework labor supply in the 1990s. The estimating subsample is children aged 7-18 in households in which both ...

We ask which economic policies can help a country create the most favourable conditions for development. We observe that the dynamics of several development indicators can be grouped into four clusters, each cluster corresponding to a different combination of growth and changes in inequality. Based on this observation, we define four different development scenarios and use limited dependent var...

Abstract Height is the result of a complex process of growth that begins at birth and reaches the end in early adulthood. This paper studies the determinants of height from birth to maturity. A height production function is specified whose structure allows height to be the result of the accumulation of inputs (i.e., nutrition and diseases) over time. The empirical specification allows the causa...

I analyze the effect of inequality on growth over different time-frames. In a large cross-country dataset for the period 1950-2007 I find evidence of a short-run (5-year periods) and medium-run (10-year periods) inverse-U relationship between inequality and growth. In the long-run (20-year periods), however, inequality has a negative effect on growth in poor countries, and a positive effect in ...

Do remittances sent by overseas migrants serve as insurance for recipient households? In a study of how remittances from overseas respond to income shocks experienced by Philippine households, changes in income are found to lead to changes in remittances in the opposite direction, consistent with an insurance motivation. Roughly 60 percent of declines in household income are replaced by remitta...