Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Friday, August 16, 2013

Static vs. dynamic impacts of unbundling: Electricity markets in South America

Posted by D. Daniel Sokol

Dominik Schober (ZEW) has written on Static vs. dynamic impacts of unbundling: Electricity markets in South America.

ABSTRACT: Ownership unbundling and third party access are discussed as two options of unbundling in both the literature and political discussions. Focusing on the South American electricity sector, I contrast static and dynamic impacts of ownership unbundling and third party access regimes on customer prices. Substantially different results are found using dynamic rather than static analysis. In particular, negative short term effects of ownership unbundling found in static models are approximately cancelled out by subsequent positive impacts in the dynamic model. Third party access seems to allow for similar benefits while avoiding the (restructuring) costs of ownership unbundling. Previously estimated static models thus appear to suffer from either omitted variable biases or endogeneity problems of static non-difference models.

http://lawprofessors.typepad.com/antitrustprof_blog/2013/08/static-vs-dynamic-impacts-of-unbundling-electricity-markets-in-south-america.html

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