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Roads to prosperity? assessing the link between public capital and productivity

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  • John G. Fernald

Abstract

At a macroeconomic level, infrastructure and productivity are positively correlated in the United States and other countries. However, it remains unclear whether this correlation reflects causation, and if so, whether causation runs from infrastructure to productivity, or the reverse. This paper focuses on roads, and finds that vehicle-intensive industries benefit disproportionately from road-building: when road growth changes, productivity growth changes more in industries that are more vehicle intensive. These results suggest that causation runs from infrastructure to productivity. However, there is no evidence that at the margin, roads offer an above-average return; road-building in essence offered a one-time boost to the level of productivity in the 1950s and 1960s. Finally, it appears that congestion significantly affects road-services at the margin, although congestion does not appear important before 1973.

Suggested Citation

  • John G. Fernald, 1997. "Roads to prosperity? assessing the link between public capital and productivity," International Finance Discussion Papers 592, Board of Governors of the Federal Reserve System (U.S.).
  • Handle: RePEc:fip:fedgif:592
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    References listed on IDEAS

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    More about this item

    Keywords

    Capital ; Productivity;

    JEL classification:

    • H54 - Public Economics - - National Government Expenditures and Related Policies - - - Infrastructures
    • R53 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Regional Government Analysis - - - Public Facility Location Analysis; Public Investment and Capital Stock
    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy

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