Electricity output in Spain: Economic analysis of the activity after liberalization

This paper is about the Spanish Electricity Market after liberalisation. The analysis focuses on finding if the market has become as a Perfect Competition regimen or on the other side, he still continues as a regimen in wich a high output supply concentration and high power market appears, not allowing free-market prices as a consequence. In this sense, conclusions are based on Cournot-perfect competition analysis for three different electricity demand scenarios. Finally, Competence transitions costs are also especially important as responsible of voluntary actions of increasing prices by Electricity Companies with high market power.Liberalization, electricity output, market power, Cournot, perfect competition, Competence Transition Costs