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Oblivious Equilibrium for Concentrated Industries

  • C. Lanier Benkard
  • Przemyslaw Jeziorski
  • Gabriel Y. Weintraub

This paper explores the application of oblivious equilibrium to concentrated industries. We define an extended notion of oblivious equilibrium that we call partially oblivious equilibrium (POE) that allows for there to be a set of "dominant firms'', whose firm states are always monitored by every other firm in the market. We perform computational experiments that show that POE are often close to MPE in concentrated industries with characteristics similar to real world industries even when OE are not. We derive error bounds for evaluating the performance of POE when MPE cannot be computed. Finally, we demonstrate an important trade-off facing empirical researchers between implementing an equilibrium concept that is computationally light in a richer economic model, and implementing MPE in a simpler one.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 19307.

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Date of creation: Aug 2013
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Publication status: published as Oblivious equilibrium for concentrated industries C. Lanier Benkard1, Przemyslaw Jeziorski2 andGabriel Y. Weintraub3 The RAND Journal of Economics Volume 46, Issue 4, pages 671–708, Winter 2015
Handle: RePEc:nbr:nberwo:19307
Note: IO PR
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  1. Przemysław Jeziorski, 2014. "Estimation of cost efficiencies from mergers: application to US radio," RAND Journal of Economics, RAND Corporation, vol. 45(4), pages 816-846, December.
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  5. Caplin, Andrew & Nalebuff, Barry, 1991. "Aggregation and Imperfect Competition: On the Existence of Equilibrium," Econometrica, Econometric Society, vol. 59(1), pages 25-59, January.
  6. John Sutton, 2007. "Market Share Dynamics and the "Persistence of Leadership" Debate," American Economic Review, American Economic Association, vol. 97(1), pages 222-241, March.
  7. Pesendorfer, Martin & Schmidt-Dengler, Philipp, 2003. "Identification and Estimation of Dynamic Games," CEPR Discussion Papers 3965, C.E.P.R. Discussion Papers.
  8. Ronald L. Goettler & Brett R. Gordon, 2011. "Does AMD Spur Intel to Innovate More?," Journal of Political Economy, University of Chicago Press, vol. 119(6), pages 1141 - 1200.
  9. Patrick Bajari & C. Lanier Benkard & Jonathan Levin, 2007. "Estimating Dynamic Models of Imperfect Competition," Econometrica, Econometric Society, vol. 75(5), pages 1331-1370, 09.
  10. Ariel Pakes & Michael Ostrovsky & Steve Berry, 2004. "Simple Estimators for the Parameters of Discrete Dynamic Games (with Entry/Exit Examples)," Harvard Institute of Economic Research Working Papers 2036, Harvard - Institute of Economic Research.
  11. Ariel Pakes & Paul McGuire, 1992. "Computing Markov Perfect Nash Equilibria: Numerical Implications of a Dynamic Differentiated Product Model," NBER Technical Working Papers 0119, National Bureau of Economic Research, Inc.
  12. Victor Aguirregabiria & Pedro Mira, 2004. "Sequential Estimation of Dynamic Discrete Games," Industrial Organization 0406006, EconWPA.
  13. Richard Ericson & Ariel Pakes, 1995. "Markov-Perfect Industry Dynamics: A Framework for Empirical Work," Review of Economic Studies, Oxford University Press, vol. 62(1), pages 53-82.
  14. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-90, July.
  15. Stephen P. Ryan, 2012. "The Costs of Environmental Regulation in a Concentrated Industry," Econometrica, Econometric Society, vol. 80(3), pages 1019-1061, 05.
  16. Pablo D'Erasmo, 2014. "Capital Requirements in a Quantitative Model of Banking Industry Dynamics," 2014 Meeting Papers 476, Society for Economic Dynamics.
  17. Meredith Fowlie & Mar Reguant & Stephen P. Ryan, 2016. "Market-Based Emissions Regulation and Industry Dynamics," Journal of Political Economy, University of Chicago Press, vol. 124(1), pages 000 - 000.
  18. Vivek Farias & Denis Saure & Gabriel Y. Weintraub, 2012. "An approximate dynamic programming approach to solving dynamic oligopoly models," RAND Journal of Economics, RAND Corporation, vol. 43(2), pages 253-282, 06.
  19. Kydland, Finn, 1979. " A Dynamic Dominant Firm Model of Industry Structure," Scandinavian Journal of Economics, Wiley Blackwell, vol. 81(3), pages 355-66.
  20. Chaim Fershtman & Ariel Pakes, 2012. "Dynamic Games with Asymmetric Information: A Framework for Empirical Work," The Quarterly Journal of Economics, Oxford University Press, vol. 127(4), pages 1611-1661.
  21. C. Lanier Benkard, 2004. "A Dynamic Analysis of the Market for Wide-Bodied Commercial Aircraft," Review of Economic Studies, Oxford University Press, vol. 71(3), pages 581-611.
  22. Gabriel Y. Weintraub & C. Lanier Benkard & Benjamin Van Roy, 2008. "Markov Perfect Industry Dynamics With Many Firms," Econometrica, Econometric Society, vol. 76(6), pages 1375-1411, November.
  23. Pakes, Ariel & McGuire, Paul, 2001. "Stochastic Algorithms, Symmetric Markov Perfect Equilibrium, and the 'Curse' of Dimensionality," Econometrica, Econometric Society, vol. 69(5), pages 1261-81, September.
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