We analyze the effect of the rise of knowledge-based activities on spatial inequality within U.S. cities. We exploit the network of patent citations to instrument for local trends in innovation. Innovation intensity is responsible for 14% of the overall increase in urban segregation between 1990...

Using a newly assembled dataset of U.S. patents, we show that overall innovation activity is less concentrated in high-density urban areas than commonly believed, but inventions based on atypical combinations of knowledge are indeed more prevalent in high-density cities. To interpret this...

The German current account balance has moved from surplus to deßcit in the course of unificalion. A theorelical model for the current account, encompassing the elaslicities, the monetary, and the absorptions approach, is set up and lested for Germany and the United States, using cointegration...

We investigate the effects of globalisation on the labour market using the factor price frontier. The factor price frontier defines a negative relationship between the real rate of return and the real wage rate. As international capital mobility equalises the real rate of return in all...

Based on the factor price frontier, we investigate the effects of supply shocks ort labour markets in open economies. Two different supply shocks are considered: an oil price shock, and the integration of relatively labour-abundant countries into the world economy. With flexible wages, a...