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Kerr, William R.; Kominers, Scott Duke - National Bureau of Economic Research (NBER) - 2010

We model spatial clusters of similar firms. Our model highlights how agglomerative forces lead to localized, individual connections among firms, while interaction costs generate a defined distance over which attraction forces operate. Overlapping firm interactions yield agglomeration clusters...

Persistent link: https://www.econbiz.de/10008777358

Agglomeration and Innovation

Carlino, Gerald; Kerr, William R. - National Bureau of Economic Research (NBER) - 2014

This chapter reviews academic research on the connections between agglomeration and innovation. We first describe the … conceptual distinctions between invention and innovation. We then describe how these factors are frequently measured in the data …, industrial diversity) that theoretical and empirical work link to innovation, and we discuss factors that help sustain these …

Persistent link: https://www.econbiz.de/10010885295

Clusters of Entrepreneurship

Glaeser, Edward Ludwig; Ponzetto, Giacomo A. M.; Kerr, … - National Bureau of Economic Research (NBER) - 2009

Employment growth is strongly predicted by smaller average establishment size, both across cities and across industries within cities, but there is little consensus on why this relationship exists. Traditional economic explanations emphasize factors that reduce entry costs or raise...

Persistent link: https://www.econbiz.de/10008548787

Local Industrial Conditions and Entrepreneurship: How Much of the Spatial Distribution Can We Explain?

Glaeser, Edward Ludwig; Kerr, William R. - National Bureau of Economic Research (NBER) - 2008

Why are some places more entrepreneurial than others? We use Census Bureau data to study local determinants of manufacturing startups across cities and industries. Demographics have limited explanatory power. Overall levels of local customers and suppliers are only modestly important, but new...

Persistent link: https://www.econbiz.de/10005714042

Entrepreneurship and Urban Growth: An Empirical Assessment with Historical Mines

Glaeser, Edward Ludwig; Kerr, Sari Pekkala; Kerr, William R. - National Bureau of Economic Research (NBER) - 2012

Measures of entrepreneurship, such as average establishment size and the prevalence of start-ups, correlate strongly with employment growth across and within metropolitan areas, but the endogeneity of these measures bedevils interpretation. Chinitz (1961) hypothesized that coal mines near...

Persistent link: https://www.econbiz.de/10010821933

The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools

Hall, Bronwyn H; Jaffe, Adam; Trajtenberg, Manuel - National Bureau of Economic Research (NBER) - 2001

This paper describes the database on U.S. patents that we have developed over the past decade, with the goal of making it widely accessible for research. We present main trends in U. S. patenting over the last 30 years, including a variety of original measures constructed with citation data,...

Persistent link: https://www.econbiz.de/10005830003

Breakthrough Inventions and Migrating Clusters of Innovation

Kerr, William R. - National Bureau of Economic Research (NBER) - 2009

We investigate the speed at which clusters of invention for a technology migrate spatially following breakthrough inventions. We identify breakthrough inventions as the top one percent of US inventions for a technology during 1975-1984 in terms of subsequent citations. Patenting growth is...

Persistent link: https://www.econbiz.de/10008614946

Measuring the Returns to R&D

Hall, Bronwyn H; MAIRESSE, Jacques; Mohnen, Pierre - National Bureau of Economic Research (NBER) - 2009

We review the econometric literature on measuring the returns to R&D. The theoretical frameworks that have been used are outlined, followed by an extensive discussion of measurement and econometric issues that arise when estimating the models. We then provide a series of tables summarizing the...

Persistent link: https://www.econbiz.de/10008624599

Adoption of New Technology

Hall, Bronwyn H; Khan, Beethika - National Bureau of Economic Research (NBER) - 2003

The contribution of new technology to economic growth can only be realized when and if the new technology is widely diffused and used. Diffusion itself results from a series of individual decisions to begin using the new technology, decisions which are often the result of a comparison of the...

Persistent link: https://www.econbiz.de/10005580436

Empirical Studies of Innovation in the Knowledge Driven Economy

Hall, Bronwyn H; MAIRESSE, Jacques - National Bureau of Economic Research (NBER) - 2006

innovation and knowledge management and their impact on performance at the firm level for a number of countries. These studies … have been conducted using data drawn from innovation surveys combined with data from a number of other sources. The issue … illustrates the value of these surveys in improving our understanding of innovation in firms and raises a number of questions for …

Persistent link: https://www.econbiz.de/10005050393