This paper provides an introduction and overview of my research on the Economics of Language. The approach is that language skills among immigrants and native-born linguistic minorities are a form of human capital. There are costs and benefits associated with this characteristic embodied in the...

Using microdata from the 2000 U.S. Census, we analyze the responses of Mexican Americans to questions that independently elicit their ethnicity (or Hispanic origin) and their ancestry. We investigate whether different patterns of responses to these questions reflect varying degrees of ethnic...

We discuss the impacts of the Russian invasion on Ukrainian science. Using newly collected data, we show that the war has already had significant effects on science in Ukraine: research papers produced by Ukrainian scientists declined by about 10%, approximately 5% of the most prolific...

Does a high regional concentration of immigrants of the same ethnicity affect immigrant children\'s acquisition of host-country language skills and educational attainment? We exploit the exogenous placement of guest workers from five ethnicities across German regions during the 1960s and 1970s...

Naturalization is usually regarded as an important sign of civic and political integration amongst immigrants, but it can also be seen as a factor of their economic integration. The aim of this study is to analyze the naturalization phenomenon in France and examine its link with the immigrants`...

Inequality of opportunity strikes when two children with the same academic performance are sent to diff erent quality schools because their parents di ffer in socio-economic status. Based on a novel dataset for Germany, we demonstrate that children are signi ficantly less likely to enter the...

This paper explores inequalities in IQ and economic preferences between children from high and low socio-economic status (SES) families. We document that children from high SES families are more intelligent, patient and altruistic, as well as less risk-seeking. To understand the underlying...

We develop a simple labour turnover model of general training. Upon completion of theirtraining, apprentices are equipped with general skills and they accumulate firm-specificskills by continuing working for their training firm. Job turnover is associated with a loss ofaccumulated firm-specific...

We study the role of professional networks in facilitating emigration of Jewish academics dismissed from their positions by the Nazi government. We use individual-level exogenous variation in the timing of dismissals to estimate causal effects. Academics with more ties to early émigrés...

We study the role of professional networks in facilitating emigration of Jewish academics dismissed from their positions by the Nazi government. We use individual-level exogenous variation in the timing of dismissals to estimate causal eects. Academics with more ties to early émigrés...