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Data Aggregation and Vertical Price Transmission: An Experiment with German Food Prices

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  • von Cramon-Taubadel, Stephan
  • Loy, Jens-Peter
  • Meyer, Jochen

Abstract

The impact of cross sectional aggregation over individual retail stores on the estimation and testing of vertical price transmission between the wholesale and retail levels is investigated using a unique data set of individual retail prices in Germany. Systematic differences between the results of estimations using aggregated data on the one hand, and disaggregated data on the other, are discussed theoretically and confirmed empirically. The results suggest that estimation with aggregated data generates misleading conclusions about price transmission behavior at the level of the individual units (i.e. retail stores) that underlie these aggregates.

Suggested Citation

  • von Cramon-Taubadel, Stephan & Loy, Jens-Peter & Meyer, Jochen, 2006. "Data Aggregation and Vertical Price Transmission: An Experiment with German Food Prices," 2006 Annual Meeting, August 12-18, 2006, Queensland, Australia 25291, International Association of Agricultural Economists.
  • Handle: RePEc:ags:iaae06:25291
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    References listed on IDEAS

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    Cited by:

    1. Bakucs, Lajos Zoltan & Ferto, Imre, 2007. "Spatial Integration On The Hungarian Milk Market," 104th Seminar, September 5-8, 2007, Budapest, Hungary 7832, European Association of Agricultural Economists.

    More about this item

    Keywords

    Aggregation; Vertical Price Transmission; Food Prices; Germany; Demand and Price Analysis; Marketing; L11; D40;

    JEL classification:

    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General

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