Estimating market power in homogenous product markets using a composed error model: application to the California electricity market
This study contributes to the literature on estimating market power in homogenous product markets. We estimate a composed error model, where the stochastic part of the firm’s pricing equation is formed by two random variables: the traditional error term, capturing random shocks, and a random conduct term, which measures the degree of market power. Treating firms’ conduct as a random parameter helps solving the issue that the conduct parameter can vary between firms and within firms over time. The empirical results from the California wholesale electricity market suggest that realization of market power varies over both time and firms, and reject the assumption of a common conduct parameter for all firms. Notwithstanding these differences, the estimated firm-level values of the conduct parameter are closer to Cournot than to static collusion across all specifications. For some firms, the potential for realization of the market power unilaterally is associated with lower values of the conduct parameter.
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- Abreu, Dilip & Pearce, David & Stacchetti, Ennio, 1986. "Optimal cartel equilibria with imperfect monitoring," Journal of Economic Theory, Elsevier, vol. 39(1), pages 251-269, June.
- Natalia Fabra & Juan Toro, 2002.
"Price Wars and Collusion in the Spanish Electricity Market,"
0212001, EconWPA, revised 31 Aug 2003.
- Fabra, Natalia & Toro, Juan, 2005. "Price wars and collusion in the Spanish electricity market," International Journal of Industrial Organization, Elsevier, vol. 23(3-4), pages 155-181, April.
- Natalia Fabra & Juan Toro, 2001. "Price Wars and Collusion in the Spanish Electricity Market," Economic Working Papers at Centro de Estudios Andaluces E2001/05, Centro de Estudios Andaluces.
- Juan Toro & Natalia Fabra, 2002. "Price Wars and Collusion in the Spanish Electricity Market," Economics Series Working Papers 136, University of Oxford, Department of Economics.
- Álvarez, Antonio & Amsler, Christine & Orea, Luis & Schmidt Peter, 2005.
"Interpreting and Testing the Scaling Property in Models where Inefficiency Depends on Firm Characteristics,"
Efficiency Series Papers
2005/03, University of Oviedo, Department of Economics, Oviedo Efficiency Group (OEG).
- Antonio Alvarez & Christine Amsler & Luis Orea & Peter Schmidt, 2006. "Interpreting and Testing the Scaling Property in Models where Inefficiency Depends on Firm Characteristics," Journal of Productivity Analysis, Springer, vol. 25(3), pages 201-212, 06.
- Peter Schmidt & Antonio Alvarez & Christine Amsler, 2004. "Interpreting and testing the scaling property in models where inefficiency depends on firm characteristics," Econometric Society 2004 Far Eastern Meetings 520, Econometric Society.
- Karen Clay & Werner Troesken, 2003. "Further Tests of Static Oligopoly Models: Whiskey, 1882-1898," Journal of Industrial Economics, Wiley Blackwell, vol. 51(2), pages 151-166, 06.
- Bresnahan, Timothy F., 1989. "Empirical studies of industries with market power," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 2, chapter 17, pages 1011-1057 Elsevier.
- Borenstein, Severin & Bushnell, James & Knittel, Chris & Wolfram, Catherine, 2008.
"Inefficiencies and Market Power in Financial Arbitrage: A Study of California's Electricity Markets,"
Staff General Research Papers
13133, Iowa State University, Department of Economics.
- Christopher Knittel & Catherine Wolfram & James Bushnell & Severin Borenstein, 2006. "Inefficiencies and Market Power in Financial Arbitrage: A Study of California?s Electricity Markets," Working Papers 630, University of California, Davis, Department of Economics.
- Corts, Kenneth S., 1998. "Conduct parameters and the measurement of market power," Journal of Econometrics, Elsevier, vol. 88(2), pages 227-250, November.
- Grigorios Emvalomatis & Spiro E. Stefanou & Alfons Oude Lansink, 2010. "A Reduced-Form Model for Dynamic Efficiency Measurement: Application to Dairy Farms in Germany and The Netherlands," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 93(1), pages 161-174.
- Severin Borenstein & James Bushnell & Christopher R. Knittel & Catherine Wolfram, 2008. "INEFFICIENCIES AND MARKET POWER IN FINANCIAL ARBITRAGE: A STUDY OF CALIFORNIA'S ELECTRICITY MARKETS -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 56(2), pages 347-378, 06.
- Borenstein, S. & Shepard, A., 1993.
"Dynamic Pricing in Retail Gazoline Markets,"
93-22, California Davis - Institute of Governmental Affairs.
- Brander, James A. & Zhang, Anming, 1993. "Dynamic oligopoly behaviour in the airline industry," International Journal of Industrial Organization, Elsevier, vol. 11(3), pages 407-435, September.
- Severin Borenstein, 2002. "The Trouble With Electricity Markets: Understanding California's Restructuring Disaster," Journal of Economic Perspectives, American Economic Association, vol. 16(1), pages 191-211, Winter.
- Borenstein, Severin & Rose, Nancy L, 1994.
"Competition and Price Dispersion in the U.S. Airline Industry,"
Journal of Political Economy,
University of Chicago Press, vol. 102(4), pages 653-83, August.
- Severin Borenstein & Nancy L. Rose, 1991. "Competition and Price Dispersion in the U.S. Airline Industry," NBER Working Papers 3785, National Bureau of Economic Research, Inc.
- Glenn Ellison, 1994. "Theories of Cartel Stability and the Joint Executive Committee," RAND Journal of Economics, The RAND Corporation, vol. 25(1), pages 37-57, Spring.
- Appelbaum, Elie, 1982. "The estimation of the degree of oligopoly power," Journal of Econometrics, Elsevier, vol. 19(2-3), pages 287-299, August.
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