Guest-worker programs have been providing rapidly growing economies with millions of temporary foreign workers over the last couple of decades. With the duration of stay strictly limited by program rules in most of the host countries and wages paid to guest workers often set at sub-market...

We analyse the determinants of household work contracted in the German shadow economy. The German socio-economic household panel, which enumerates casual domestic employment, is used to estimate the demand for such household work. The regressors include regional wage rates, household income and...

This paper presents theory and evidence on the determinants of the size of the informal sector. We propose a simple theoretical model in which it is positively related to income inequality, more so under weak institutions, and is negatively related to the economy's wealth. These predictions are...

Differences in regional unemployment in post-communist economies are large and persistent. We show that inherited variation in human-capital endowment across the regions of four such economies explains the bulk of regional unemployment variation there and we explore potential explanations for...

We develop a theory of innovation for entry and sale into oligopoly, and show that an invention of higher quality is more likely to be sold (or licensed) to an incumbent due to strategic product market effects on the sales price. Preemptive acquisitions by incumbents are shown to stimulate the...