A review of the monitoring of market power
License
Access Rights
Cadmus Permanent Link
Full-text via DOI
ISBN
ISSN
Issue Date
Type of Publication
Keyword(s)
LC Subject Heading
Other Topic(s)
EUI Research Cluster(s)
Initial version
Published version
Succeeding version
Preceding version
Published version part
Earlier different version
Initial format
Citation
CMI Working Paper; CWPE; 2006/71
Cite
TWOMEY, Paul, GREEN, Richard, NEUHOFF, Karsten, NEWBERY, David, A review of the monitoring of market power, CMI Working Paper, CWPE, 2006/71 - https://hdl.handle.net/1814/42363
Abstract
The paper surveys the literature and publicly available information on market power monitoring in electricity wholesale markets. After briefly reviewing definitions, strategies and methods of mitigating market power we examine the various methods of detecting market power that have been employed by academics and market monitors/regulators. These techniques include structural and behavioural indices and analysis as well as various simulation approaches. The applications of these tools range from spot market mitigation and congestion management through to long-term market design assessment and merger decisions. Various market-power monitoring units already track market behaviour and produce indices. Our survey shows that these units collect a large amount of data from various market participants and we identify the crucial role of the transmission system operators with their access to dispatch and system information. Easily accessible and comprehensive data supports effective market power monitoring and facilitates market design evaluation. The discretion required for effective market monitoring is facilitated by institutional independence.