We use exogenous variations in fertility due to twin births to measure the impact of an unplanned child on married women's labor supply and earnings. Although the overall effects of an unplanned birth on labor supply are small, we find significant effects in the years immediately following the...

This paper discusses some issues in the empirical implementation of game theoretic models of household labor supply. In particular we focus on the identification problems inherent in many of these models. As an illustration, we estimate a game theoretic model which uses data on preferred working...

This paper discusses an investigation of the effects of systematic underreporting of income and of sample selectivity on the estimated levels of two subjective definitions of poverty: the so-called subjective poverty line and the Leyden poverty line. Both turn out to have substantially biasing...