Is small always beautiful? Analyzing the efficiency effects of size heterogeneity in renewable electricity auctions

The size of bidders has been the focus of some research in the empirical literature in renewable electricity auctions, mostly related to the (negative) impact of auctions and auction design elements on the participation and award of small bidders. The main result of this literature is that small act...

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Detalles Bibliográficos
Autores: Álvarez González, Francisco, del Río, Pablo
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/71296
Acceso en línea:https://hdl.handle.net/20.500.14352/71296
Access Level:acceso abierto
Palabra clave:Renewable energy
Electricity
Auctions
Small actors
Comercio
Empresas
Teorías económicas
5304.03 Comercio exterior
5311 Organización y Dirección de Empresas
5307 Teoría Económica
Descripción
Sumario:The size of bidders has been the focus of some research in the empirical literature in renewable electricity auctions, mostly related to the (negative) impact of auctions and auction design elements on the participation and award of small bidders. The main result of this literature is that small actors are discouraged from participating and being awarded in the auction and that this is a detrimental outcome of auctions. However, the impact of small bidders on the efficiency of the auction has not received a comparable degree of attention. The aim of this paper is to contribute to this literature with an analysis of the efficiency effects of bidders with different sizes in renewable electricity auctions. Our results show that a greater diversity of bidders’ sizes increases the probability that the auction will not be efficient. In other words, promoting small actors with respect to large ones comes at a cost in terms of a lower allocative efficiency i.e., that the lowest-cost bidders will not be awarded. Although some governments have a goal of promoting the participation of small actors in auctions, our findings suggest that the reason for promoting actor diversity is not in the allocative efficiency of the auction, but must lie elsewhere i.e., a greater competition, mitigation of the risk of collusion, social acceptability or decentralization of renewable energy production.