In The Bell Curve Herrnstein and Murray argue that a youth's intelligence (IQ) is a more important determinant of social and economic success in adulthood than is the socioeconomic status (SES) of his or her parents. Herrnstein and Murray base this conclusion on comparison of effects of IQ score...

We study the impact of firm level choices of ICT, R&D, exporting and importing on the evolution of productivity and its bias towards skilled occupations. We use a novel measure of the propensity of a firm to engage in technology investment and adoption: its employment of workers with STEM...

We document for a broad panel of advanced economies that increases in GDP per capita are associated with a shift in the composition of value added to sectors that are intensive in high-skill labor. It follows that further development in these economies leads to an increase in the relative demand...

To study the short-run and long-run implications on wage inequality, we introduce directed technical change into a Ricardian model of offshoring. A unique final good is produced by combining a skilled and an unskilled product, each produced from a continuum of intermediates (tasks). Some of...

This paper explores the relationship between openness to trade and to immigration on income per person. To address endogeneity concerns we extend the instrumental-variables strategy first used by Frankel and Romer (1999). We show that distance (geographical and cultural) can be used to build a...

What explains the current low rate of employment in the US? While there has been substantial debate over this question in recent years, we believe that considerable added insight can be derived by focusing on changes in the labor market at the turn of the century. In particular, we argue that in...

This paper analyzes the effects of income taxation on the international migration and earnings of top earners using a Danish preferential foreigner tax scheme and population-wide Danish administrative data. This scheme, introduced in 1991, allows new immigrants with high earnings to be taxed at...

Using the American Community Surveys of 2009 and 2010, I examine the wages of immigrants compared to natives among engineering workers. Among workers in engineering occupations, immigrants are the best and brightest thanks to their high education level, enjoying a wage distribution shifted to...

In 2005, the U.S. Congress legislated that the H-1B visa program create 20,000 annual slots reserved for advanced-degree applicants. Since then, the U.S. Customs and Immigration Service (USCIS) has used visa allocation rules that comply with this legislation. Following a directive in the April...