Market Concentration and the Analysis of Vertical Organization

  •  Jean-Paul Chavas    
  •  Guanming Shi    


This paper proposes concentration indices that extend the classical Hirschman-Herfindahl Index to include vertical structures for differentiated products. The analysis shows how cross-product substitution/complementarity relationships across vertical channels can affect pricing. It also identifies the role played by market size. The usefulness of the approach is illustrated in an application to a merger analysis in the gasoline market.

This work is licensed under a Creative Commons Attribution 4.0 License.
  • ISSN(Print): 1918-719X
  • ISSN(Online): 1918-7203
  • Started: 2009
  • Frequency: quarterly

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