Is equating market share to market power a sound economic principle?
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|Title:||Is equating market share to market power a sound economic principle?||Authors:||Whelan, Ciara||Permanent link:||http://hdl.handle.net/10197/136||Date:||2003||Online since:||2008-05-15T14:01:18Z||Abstract:||There is a long history of mapping market structure into market power in economic analysis. This paper addresses the validity of this principle for both homogenous and differentiated products industries. While mapping market share dominance into market power may be acceptable for homogenous goods as a rule of thumb, it is by no means a robust result. In the case of differentiated products industries, there is no theoretical foundation for such a mapping. This paper highlights the need to move towards a structural approach to assessing market power in industries.||Type of material:||Journal Article||Publisher:||Statistical and Social Inquiry Society of Ireland||Journal:||Journal of the Statistical and Social Inquiry Society of Ireland||Volume:||32||Start page:||109||End page:||128||Copyright (published version):||2003, Statistical and Social Inquiry Society of Ireland||Keywords:||Market shares; Homogenous and differentiated products industries; Market power||Subject LCSH:||Market share
Industrial organization (Economic theory)
|Other versions:||http://www.tara.tcd.ie/bitstream/2262/2598/1/jssisiVOlXXXII_109128.pdf||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Geary Institute Research Collection|
Economics Research Collection
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