Roads to Prosperity? Assessing the Link between Public Capital and Productivity

John Fernald ()

American Economic Review, 1999, vol. 89, issue 3, 619-638

Abstract: Does the positive correlation between infrastructure and productivity reflect causation? If so, in which direction? The author finds that, when growth in roads (the largest component of infrastructure) changes, productivity growth changes disproportionately in U.S. industries with more vehicles. That vehicle-intensive industries benefit more from road-building suggests that roads are productive. At the margin, however, road investments do not appear unusually productive. Intuitively, the interstate system was highly productive, but a second one would not be. Road-building thus explains much of the productivity slowdown through a one-time, unrepeatable productivity boost in the 1950s and 1960s.

JEL-codes: E62 H54 R53 (search for similar items in EconPapers)
Date: 1999
Note: DOI: 10.1257/aer.89.3.619
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Citations: View citations in EconPapers (492)

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Working Paper: Roads to prosperity? assessing the link between public capital and productivity (1997)
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