In common anti-immigrant rhetoric, concerns are raised that immigrants bring diseases with them to the host country that threaten the health of the resident population. In reality, extensive empirical research over several decades and across multiple regions and host countries has documented...

This paper examines whether the distribution of bargaining power between parents affects permanent and transitory nutritional indicators in the early stages of boys' and girls' life. I use the Young Lives sample, which is a survey of young children living in poor households in Ethiopia, India...

Twin births are often construed as a natural experiment in the social and natural sciences on the premise that the occurrence of twins is quasi-random. We present new population-level evidence that challenges this premise. Using individual data for more than 18 million births (more than 500,000...

The body mass index (BMI) is the primary means of classifying obesity and reflects a complex set of interactions related to the institution of marriage and household characteristics. There is an inverse relationship between BMI and height, and height reflects the cumulative price of net...

Twin births are often construed as a natural experiment in the social and natural sciences on the premise that the occurrence of twins is quasi-random. We present new population-level evidence that challenges this premise. Using individual data for 17 million births in 72 countries, we...

Twin births are often used to instrument fertility to address (negative) selection of women into fertility. However recent work shows positive selection of women into twin birth. Thus, while OLS estimates will tend to be downward biased, twin-IV estimates will tend to be upward biased. This is...

The paper develops a theoretical framework, and a diagrammatic apparatus, for explaining the supply of child labour. It examines the effect of credit, insurance, and poverty (defined as more than just low income). It also explains bonded child labour, a modern form of slavery closely associated...

We study the effect of a policy change that exogenously shifted bargaining power from mothers to fathers on intimate partner violence. We exploit a quasi-natural experiment based on a series of reforms in Spain that shifted the custody decision from being unilaterally determined by the mother to...

Child height is a significant predictor of human capital and economic status throughout adulthood. Moreover, non-unitary household models of family behavior posit that an increase in women's bargaining power can influence child health. We study the effects of an inheritance law change, the Hindu...

Sleep is a source of energy. This energy is available in limited quantity and individuals must decide when it should be renewed and when it should be consumed. The economics of sleeping and the economics of resource extraction are one and the same. More specifically, utility maximization with...