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Information Technology and Returns to Scale

Author

Listed:
  • Danial Lashkari
  • Arthur Bauer
  • Jocelyn Boussard

Abstract

This paper investigates the role of IT in shaping recent trends in market concentration, factor income shares, and market competition. Relying on a novel dataset on hardware and software investments in the universe of French firms, we document a robust within-industry correlation between firm size and the intensity of IT demand. To explain this fact, we argue that the relative marginal product of IT inputs may rise with firm scale, since IT specifically helps firms deal wiThéorganizational limits to scale. We propose a general equilibrium model of industry dynamics that features firm-level production functions compatible with this mechanism. We estimate the production function and find evidence for the nonhomotheticity of IT demand and for an elasticity of substitution between IT and other inputs that falls below unity. Under the estimated model parameters, the cross-sectional predictions of the model match the observed relationship of firm size with IT intensity (positive) and labor share (negative). In addition, as a response to the fall in the relative price of IT inputs in post-1990 France, the model can explain about half of both the observed rise in market concentration and the observed market reallocation toward low-labor-share-firms.

Suggested Citation

  • Danial Lashkari & Arthur Bauer & Jocelyn Boussard, 2019. "Information Technology and Returns to Scale," Working papers 737, Banque de France.
    • Handle: RePEc:bfr:banfra:737
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    JEL classification:

    • E10 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - General
    • E23 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Production
    • E25 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Aggregate Factor Income Distribution

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