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Nonparametric Estimation of a Nonseparable Demand Function under the Slutsky Inequality Restriction

Author

Listed:
  • Richard Blundell

    (University College London, and Institute for Fiscal Studies (IFS))

  • Joel Horowitz

    (Northwestern University and Cemmap)

  • Matthias Parey

    (University of Essex and Institute for Fiscal Studies)

Abstract
We present a method for consistent nonparametric estimation of a demand function with nonseparable unobserved taste heterogeneity subject to the shape restriction implied by the Slutsky inequality. We use the method to estimate gasoline demand in the United States. The results reveal differences in behavior between heavy and moderate gasoline users. They also reveal variation in the responsiveness of demand to plausible changes in prices across the income distribution. We extend our estimation method to permit endogeneity of prices. The empirical results illustrate the improvements in finite-sample performance of a nonparametric estimator from imposing shape restrictions based on economic theory.

Suggested Citation

  • Richard Blundell & Joel Horowitz & Matthias Parey, 2017. "Nonparametric Estimation of a Nonseparable Demand Function under the Slutsky Inequality Restriction," The Review of Economics and Statistics, MIT Press, vol. 99(2), pages 291-304, May.
    • Handle: RePEc:tpr:restat:v:99:y:2017:i:2:p:291-304
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