This paper explores the relationship between openness to trade, immigration, and income per person across countries. To address endogeneity concerns we extend the instrumental-variables strategy introduced by Frankel and Romer (1999). We build predictors of openness to immigration and to trade...

We study the self-employed decision and its relation to human and social capital. Human capital is necessary to acquire skills. Social capital dampens the effects of uncertainty about future income. Our data set consists of 1339 respondents from the same age group, who were interviewed three...