This paper analyses the determinants of language abilities of migrant workers and the impact of language proficiency on their earnings position. The analysis is based on data for West Germany. The first part presents an ordered probit analysis of the determinants of German speaking and writing...

Since the Middle Ages the Jews have been engaged primarily in urban, skilled occupations, such as crafts, trade, finance and medicine. This distinctive occupational selection occurred between the seventh and the ninth centuries in the Muslim Empire and spread to other locations. We argue that...

This research argues that the differential effect of international trade on the demand for human capital across countries has been a major determinant of the distribution of income and population across the globe. In developed countries the gains from trade have been directed towards investment...

Why is underdevelopment so persistent? One explanation is that poor countries do not have institutions that can support growth. Because institutions (both good and bad) are persistent, underdevelopment is persistent. An alternative view is that underdevelopment comes from poor education. Neither...

We estimate the impact of schooling on monthly earnings from 1950 to 2000 in Romania. Nearly constant at about 3-4 percent during the socialist period, the coefficient on schooling in a conventional earnings regression rises steadily during the 1990s, reaching 8.5 percent by 2000. Our analysis...

This paper presents a model of an economy in which traders use social capital to reduce transaction costs. A key assumption is that there are two types of social capital: “village” capital relies on personal networks and repeat play to guarantee contracts; “market” capital relies on...