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Productivity, Welfare and Reallocation: Theory and Firm-Level Evidence

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  • Susanto Basu
  • Luigi Pascali
  • Fabio Schiantarelli
  • Luis Serven

Abstract

We prove that in a closed economy without distortionary taxation, the welfare of a representative consumer is summarized to a first order by the current and expected future values of the Solow productivity residual in level and by the initial endowment of capital. The equivalence holds if the representative household maximizes utility while taking prices parametrically. This result justifies TFP as the right summary measure of welfare (even in situations where it does not properly measure technology) and makes it possible to calculate the contributions of disaggregated units (industries or firms) to aggregate welfare using readily available TFP data. We show how these results must be modified if the economy is open or if taxes are distortionary. We then compute firm and industry contributions to welfare for a set of European OECD countries (Belgium, France, Great Britain, Italy, Spain), using industry-level (EU-KLEMS) and firm-level (Amadeus) data. After adding further assumptions about technology and market structure (firms minimize costs and face common factor prices), we show that welfare change can be decomposed into three components that re.ect respectively technical change, aggregate distortions and allocative efficiency. Then, using the appropriate firm-level data, we assess the importance of each of these components as sources of welfare improvement in the same set of European countries.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 15579.

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Date of creation: Dec 2009
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Handle: RePEc:nbr:nberwo:15579

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  1. Weitzman, Martin L, 1976. "On the Welfare Significance of National Product in a Dynamic Economy," The Quarterly Journal of Economics, MIT Press, vol. 90(1), pages 156-62, February.
  2. Amil Petrin & T. Kirk White & Jerome P. Reiter, 2011. "The Impact of Plant-level Resource Reallocations and Technical Progress on U.S. Macroeconomic Growth," NBER Working Papers 16700, National Bureau of Economic Research, Inc.
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