This paper studies the effect of top tax rates on inventors' mobility since 1977. We put special emphasis on "superstar" inventors, those with the most and most valuable patents. We use panel data on inventors from the United States and European Patent Offices to track inventors' locations over...

Does migration facilitate regional adjustment to idiosyncratic shocks? The evidence from post-communist economies indicates that the efficacy of migration in reducing inter-regional unemployment and wage differentials has in fact been rather low. High wages appear to encourage - and, similarly,...

In this paper, I analyse the development of inter-regional mobility in the Czech Republic during the transition from central planning to a market economy. I show that while the intensity of migration is low and has even fallen during the transition, regional disparities in unemployment rates and...

We study the relationship between geography and growth. To do so, we first develop a dynamic spatial growth theory with realistic geography. We characterize the model and its balanced growth path and propose a methodology to analyze equilibria with different levels of migration frictions. We...

From the end of the second century C.E., Judaism enforced a religious norm requiring any Jewish father to educate his children. We present evidence supporting our thesis that this exogenous change in the religious and social norm had a major influence on Jewish economic and demographic history....

From the end of the second century C.E., Judaism enforced a religious norm requiring Jewish fathers to educate their sons. We present evidence supporting our thesis that this change in the religious and social norm had a major influence on Jewish economic and demographic history. First, the high...