Knowledge flows within and across countries should be carriers of important learning spillovers. We use data on 1.5 million patents and 4.5 million citations to analyze knowledge flows across 147 subnational regions. We estimate that only 15% of average knowledge is learned outside the average...

In an empirical analysis, considering 236 U.S. cities in the period 1980-1990, we document a strong positive correlation between local supply of skills and their return. In SMSA's where the average education of workers is high the education premium is also high. This is true both considering the...

The offshoring of production by multinational firms has expanded dramatically in recent decades, increasing these firms' potential for economic growth and technological transfers across countries. What determines the location of offshore production? How do countries' policies and characteristics...

The offshoring of production by multinational firms has expanded dramatically in recent decades, increasing these firms’ potential for economic growth and technological transfers across countries. What determines the location of offshore production? How do countries' policies and...

Identification of the strength of human capital externalities at the aggregate level is still not fully understood. The existing method may yield positive or negative externalities even if wages reflect marginal social products. We propose an approach that yields positive average human capital...

The recent literature on externalities of schooling in the U.S. is rather mixed: positive external effects of average education are hardly found at all, while often positive externalities from the share of college graduates are identified. This paper proposes a simple model to explain this fact...

The offshoring of production by multinational firms has expanded dramatically in recent decades, increasing the potential for economic growth and technological transfers. What determines the location of such offshore production? How do the policies and characteristics of countries affect these...