Regression Models for Market-Shares

Kristina Birch, Jørgen Kai Olsen, Tue Tjur

Research output: Working paperResearch

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On the background of a data set of weekly sales and prices for three brands of coffee, this paper discusses various regression models and their relation to the multiplicative competitive-interaction model (the MCI model, see Cooper 1988, 1993) for market-shares. Emphasis is put on the interpretation of the parameters in relation to models for the total sales based on discrete choice models.Key words and phrases. MCI model, discrete choice model, market-shares, price elasitcity, regression model.
Original languageEnglish
Place of PublicationKøbenhavn
PublisherCenter for Statistics
Number of pages22
Publication statusPublished - 2005


  • MCI model
  • Discrete choice model
  • Market shares
  • Price elasticity
  • Regression model

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