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Regime switches induced by supply–demand equilibrium: a model for power-price dynamics

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  • Mari, Carlo
  • Tondini, Daniela

Abstract

Regime-switching models can be used to describe stochastic movements of electricity prices in deregulated markets. This paper shows that regime-switching dynamics arise quite naturally in an equilibrium context in which the functional form of the supply curve is described by a two-state Markov process. This mechanism is responsible for random switches between regimes and it allows one to describe the main features of the price-formation process. With the interplay between demand and supply, the proposed methodology can be used to capture shortages in electricity generation, forced outages, and peaks in electricity demand. As an example of application, a two-regime model specification is proposed, and it will be shown that the empirical analysis, performed by estimating using the model on the California power market, offers an interesting agreement with observed data.

Suggested Citation

  • Mari, Carlo & Tondini, Daniela, 2010. "Regime switches induced by supply–demand equilibrium: a model for power-price dynamics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(21), pages 4819-4827.
    • Handle: RePEc:eee:phsmap:v:389:y:2010:i:21:p:4819-4827
    DOI: 10.1016/j.physa.2010.06.017
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    References listed on IDEAS

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    1. Mount, Timothy D. & Ning, Yumei & Cai, Xiaobin, 2006. "Predicting price spikes in electricity markets using a regime-switching model with time-varying parameters," Energy Economics, Elsevier, vol. 28(1), pages 62-80, January.
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    Cited by:

    1. Mari, Carlo & Cananà, Lucianna, 2012. "Markov switching of the electricity supply curve and power prices dynamics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 391(4), pages 1481-1488.
    2. Sapio, Alessandro, 2015. "The effects of renewables in space and time: A regime switching model of the Italian power price," Energy Policy, Elsevier, vol. 85(C), pages 487-499.

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