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...

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...

Most U.S. innovation output originates from firms that operate R&D facilities across multiple local markets. We study how this geographic structure influences aggregate innovation and growth, and whether it is socially optimal. First, we develop an endogenous growth model featuring multi-market...

Local policy makers seek ways to deal with abandoned industrial heritage in their jurisdictions. Much is demolished, but in some cases considerable investments are made to preserve the cultural aspects of industrial sites. The renewal plans are usually designed to stimulate urban renewal in the...

In this paper we study the impact of diversity on regional growth by extending the existing literature in such that we differentiate between industry diversity and human capital diversity. In order to measure human capital diversity we construct a regional measure based on individual...

Cities exist because of the productivity gains arising from clustering production and workers, a process called agglomeration. How important is agglomeration for aggregate growth? This paper constructs a dynamic stochastic general equilibrium model of cities and uses it to estimate the effect of...

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...

Prior research has provided little evidence that subsidized housing investments generate significant external benefits to their neighborhoods. This paper revisits the external effects of subsidized housing, exploring the case of New York City. Relying on geocoded administrative data, we estimate...

The authors construct a dynamic general equilibrium model of cities and use it to estimate the effect of local agglomeration on per capita consumption growth. Agglomeration affects growth through the density of economic activity: higher production per unit of land raises local productivity....

The systems of innovation (SI) approach has been established and extended during the last two decades. Although elementary goals and progress have been reached through seminal contributions by Freeman (1987), Lundvall (1992) or Nelson (1993), in designing a generic approach, displaying the...