NDLI: Market power assessment through modelling of effective anti-competitive behaviour of participants

Content Provider	IET Digital Library
Author	Halakou, Ehsan Foroud, Asghar Akbari
Abstract	Market power is an anti-competitive issue in the electricity markets, the identification and monitoring of which require using comprehensive and accurate indices. In this study, two new behavioural indices are introduced for the effective and accurate monitoring of market power. The suggested indices determine the actual level of market power in the transmission-constrained electricity markets by analysing the bidding behaviour of participants. The proposed indices necessarily consider the success of the participant's anti-competitive behaviour in a price increase on the basis for computation. First, the effective physical withholding index is presented, which can determine the amount of physical withholding that has led to the acceptance of a more expensive block. The effective financial distortion rate index is then proposed, which can specify the degree of financial deviation of the participants resulting from the successful exercise of each participant's withholding (financial–physical) strategy. Investigation of the results obtained from a three-bus test system and the IEEE 57-bus test system verifies the effective and accurate performance of the proposed indices in assessing the market power.
Starting Page	5381
Ending Page	5391
Page Count	11
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 23, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/23
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0834
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-08-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Behavioural Indices Bidding Behaviour Contractual Issues Effective Anti-competitive Behaviour Effective Financial Distortion Rate Index Effective Physical Withholding Index IEEE 30-bus Test System Market Power Assessment Power Market Power System Economics Power System Managemen Power System Operation Public Utilities Tendering Three-bus Test System Transmission-constrained Electricity Markets
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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Behavioural market power indices in a transmission-constrained electricity market

Capacity withholding analysis in transmission-constrained electricity markets

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