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Differential Pricing When Costs Differ: A Welfare Analysis

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Abstract

This paper analyzes the welfare effects of monopoly differential pricing in the important but largely neglected case where marginal costs of service differ across consumer groups. Compared to uniform pricing, cost-based differential pricing generally raises total welfare. Although total output may fall or even its allocation across consumer groups may worsen, under a minor demand curvature condition at least one of these changes must be beneficial and dominate if the other is not. Aggregate consumer welfare also rises (under a mildly tighter condition). The source of consumer gains is not cost savings from output reallocation, which flow to the firm. Rather, to induce output reallocation the firm must vary its prices, thereby creating price dispersion without an upward bias in the average price. This improves consumer welfare even in cases where output falls. We contrast these results with those in the extensive literature on third-degree price discrimination and, furthermore, provide sufficient conditions for beneficial differential pricing when both demand elasticities and costs differ.

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  • Marius Schwartz & Yongmin Chen, 2013. "Differential Pricing When Costs Differ: A Welfare Analysis," Working Papers gueconwpa~13-13-01, Georgetown University, Department of Economics.
  • Handle: RePEc:geo:guwopa:gueconwpa~13-13-01
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    1. Glenn Ellison, 2005. "A Model of Add-On Pricing," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 120(2), pages 585-637.
    2. Simon Cowan, 2007. "The welfare effects of third-degree price discrimination with nonlinear demand functions," RAND Journal of Economics, RAND Corporation, vol. 38(2), pages 419-428, June.
    3. Yongmin Chen & Marius Schwartz, 2015. "Differential pricing when costs differ: a welfare analysis," RAND Journal of Economics, RAND Corporation, vol. 46(2), pages 442-460, June.
    4. Schmalensee, Richard, 1981. "Output and Welfare Implications of Monopolistic Third-Degree Price Discrimination," American Economic Review, American Economic Association, vol. 71(1), pages 242-247, March.
    5. Paolo Bertoletti, 2009. "On the output criterion for price discrimination," Economics Bulletin, AccessEcon, vol. 29(4), pages 2951-2956.
    6. E. Glen Weyl & Michal Fabinger, 2013. "Pass-Through as an Economic Tool: Principles of Incidence under Imperfect Competition," Journal of Political Economy, University of Chicago Press, vol. 121(3), pages 528-583.
    7. Simon Cowan, 2012. "Third-Degree Price Discrimination and Consumer Surplus," Journal of Industrial Economics, Wiley Blackwell, vol. 60(2), pages 333-345, June.
    8. Jerry A. Hausman & Jeffrey K. MacKie-Mason, 1988. "Price Discrimination and Patent Policy," RAND Journal of Economics, The RAND Corporation, vol. 19(2), pages 253-265, Summer.
    9. Armstrong, Mark & Porter, Robert, 2007. "Preface to the Handbook of Industrial Organization, Volume 3," Handbook of Industrial Organization, in: Mark Armstrong & Robert Porter (ed.), Handbook of Industrial Organization, edition 1, volume 3, chapter 0, pages 00, Elsevier.
    10. Iñaki Aguirre & Simon Cowan & John Vickers, 2010. "Monopoly Price Discrimination and Demand Curvature," American Economic Review, American Economic Association, vol. 100(4), pages 1601-1615, September.
    11. Schwartz, Marius, 1990. "Third-Degree Price Discrimination and Output: Generalizing a Welfare Result," American Economic Review, American Economic Association, vol. 80(5), pages 1259-1262, December.
    12. Valletti, Tommaso M., 2006. "Differential pricing, parallel trade, and the incentive to invest," Journal of International Economics, Elsevier, vol. 70(1), pages 314-324, September.
    13. Varian, Hal R, 1985. "Price Discrimination and Social Welfare," American Economic Review, American Economic Association, vol. 75(4), pages 870-875, September.
    14. Adachi, Takanori & Ebina, Takeshi, 2014. "Double marginalization and cost pass-through: Weyl–Fabinger and Cowan meet Spengler and Bresnahan–Reiss," Economics Letters, Elsevier, vol. 122(2), pages 170-175.
    15. Stephen K. Layson, 1998. "Third‐Degree Price Discrimination With Interdependent Demands," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 511-524, December.
    16. Malueg, David A, 1993. "Bounding the Welfare Effects of Third-Degree Price Discrimination," American Economic Review, American Economic Association, vol. 83(4), pages 1011-1021, September.
    17. Nahata, Babu & Ostaszewski, Krzysztof & Sahoo, P K, 1990. "Direction of Price Changes in Third-Degree Price Discrimination," American Economic Review, American Economic Association, vol. 80(5), pages 1254-1258, December.
    18. Mark Armstrong & Robert Porter (ed.), 2007. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 3, number 1.
    19. Jonathan E. Nuechterlein & Philip J. Weiser, 2007. "Digital Crossroads: American Telecommunications Policy in the Internet Age," MIT Press Books, The MIT Press, edition 1, volume 1, number 026264066x, December.
    20. Shih, Jun-ji & Mai, Chao-cheng & Liu, Jung-chao, 1988. "A General Analysis of the Output Effect under Third-Degree Price Discrimination," Economic Journal, Royal Economic Society, vol. 98(389), pages 149-158, March.
    21. Stole, Lars A., 2007. "Price Discrimination and Competition," Handbook of Industrial Organization, in: Mark Armstrong & Robert Porter (ed.), Handbook of Industrial Organization, edition 1, volume 3, chapter 34, pages 2221-2299, Elsevier.
    22. Layson, Stephen K, 1998. "Third-Degree Price Discrimination with Interdependent Demands," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 511-524, December.
    23. Mark Armstrong & John Vickers, 1991. "Welfare Effects of Price Discrimination by a Regulated Monopolist," RAND Journal of Economics, The RAND Corporation, vol. 22(4), pages 571-581, Winter.
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    Keywords

    differential pricing; price discrimination; demand curvature; pass-through rate;
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