Spillovers in Space: Does Geography Matter?
39 Pages Posted: 19 Jul 2010 Last revised: 27 Mar 2022
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Spillovers in Space: Does Geography Matter?
Spillovers in Space: Does Geography Matter?
Spillovers in Space: Does Geography Matter?
Date Written: July 2010
Abstract
We simultaneously assess the contributions to productivity of three sources of research and development spillovers: geographic, technology and product-market proximity. To do this, we construct a new measure of geographic proximity that is based on the distribution of a firm's inventor locations rather than its headquarters, and we report both parametric and semiparametric estimates of our geographic- distance functions. We find that: i) Geographic space matters even after conditioning on horizontal and technological spillovers; ii) Technological proximity matters; iii) Product-market proximity is less important; iv) Locations of researchers are more important than headquarters but both have explanatory power; and v) Geographic markets are very local.
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