Does market concentration of downstream buyers squeeze upstream suppliers’ market power?
AbstractUsing a theoretical model, we examine both the relationship between a downstream dominant firm’s market share and an upstream monopoly’s Lerner index and the relationship between upstream and downstream price elasticities of demand, in a regulated industry context. We undertake an empirical study that confirms our theoretical predictions, namely that the market share of a leader downstream firm is significant in explaining the upstream producers’ Lerner indexes. Also in accordance with the results of the theoretical model, the Lerner index is negatively influenced by the competition that suppliers face and by the level of economies of density, amongst other variables.
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Bibliographic InfoPaper provided by Universidade do Porto, Faculdade de Economia do Porto in its series FEP Working Papers with number 387.
Length: 22 pages
Date of creation: Sep 2010
Date of revision:
vertical relations; buyers’ market power;
This paper has been announced in the following NEP Reports:
- NEP-ALL-2010-10-02 (All new papers)
- NEP-BEC-2010-10-02 (Business Economics)
- NEP-COM-2010-10-02 (Industrial Competition)
- NEP-IND-2010-10-02 (Industrial Organization)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Gianni De Fraja & Alberto Iozzi, . "Short Term and Long Term Effects of Price Cap Regulation," Discussion Papers 00/61, Department of Economics, University of York.
- Barbot, Cristina & D’Alfonso, Tiziana & Malighetti, Paolo & Redondi, Renato, 2013. "Vertical collusion between airports and airlines: An empirical test for the European case," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 57(C), pages 3-15.
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