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Vertical Arrangements, Market Structure, and Competition An Analysis of Restructured U.S. Electricity Markets

Listed author(s):
  • James B. Bushnell
  • Erin T. Mansur
  • Celeste Saravia

This paper examines vertical arrangements in electricity markets. Vertically integrated wholesalers, or those with long-term contracts, have less incentive to raise wholesale prices when retail prices are determined beforehand. For three restructured markets, we simulate prices that define bounds on static oligopoly equilibria. Our findings suggest that vertical arrangements dramatically affect estimated market outcomes. Had regulators impeded vertical arrangements (as in California), our simulations imply vastly higher prices than observed and production inefficiencies costing over 45 percent of those production costs with vertical arrangements. We conclude that horizontal market structure accurately predicts market performance only when accounting for vertical structure.

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File URL: http://www.nber.org/papers/w13507.pdf
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 13507.

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Date of creation: Oct 2007
Publication status: published as James B. Bushnell & Erin T. Mansur & Celeste Saravia, 2008. "Vertical Arrangements, Market Structure, and Competition: An Analysis of Restructured US Electricity Markets," American Economic Review, American Economic Association, vol. 98(1), pages 237-66, March.
Handle: RePEc:nbr:nberwo:13507
Note: EEE IO
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  1. Allaz Blaise & Vila Jean-Luc, 1993. "Cournot Competition, Forward Markets and Efficiency," Journal of Economic Theory, Elsevier, vol. 59(1), pages 1-16, February.
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