Marketing Margins, Market Power, and Price Uncertainty

This paper provides a conceptual and empirical framework for analyzing marketing margins in a noncompetitive food-processing industry facing output price uncertainty. The framework allows the decomposition of observed margins into components reflecting the marginal cost of the processing industry, oligopoly/oligopsony price distortions, and an output price risk component. The empirical procedure is applied to a time series of spreads between wholesale pork prices and farm prices of market hogs. The principal finding is that, while farm/wholesale margins are more consistent with competitive performance now than they were fifteen years ago, the output price risk component persisted throughout the sample period.

[1]  Azzeddine M. Azzam,et al.  Measuring market power in multi-product oligopolies: the US meat industry , 1990 .

[2]  A. Azzam,et al.  TESTING OLIGOPOLISTIC AND OLIGOPSONISTIC BEHAVIOUR: AN APPLICATION TO THE US MEAT‐PACKING INDUSTRY , 1990 .

[3]  M. Holt,et al.  Risk Behavior and Rational Expectations in the U.S. Broiler Market , 1989 .

[4]  John R. Schroeter.  Estimating the Degree of Market Power in the Beef Packing Industry , 1988 .

[5]  T. Bollerslev,et al.  Generalized autoregressive conditional heteroskedasticity , 1986 .

[6]  C. Ward.  The U.S. Pork Sector: Changing Structure and Organization , 1985 .

[7]  J. Chavas,et al.  Marketing Margins and Price Uncertainty: The Case of the U.S. Wheat Market , 1985 .

[8]  Ramón López.  MEASURING OLIGOPOLY POWER AND PRODUCTION RESPONSES OF THE CANADIAN FOOD PROCESSING INDUSTRY , 1984 .

[9]  A. I. McLeod,et al.  DIAGNOSTIC CHECKING ARMA TIME SERIES MODELS USING SQUARED‐RESIDUAL AUTOCORRELATIONS , 1983 .

[10]  R. Engle.  Autoregressive conditional heteroscedasticity with estimates of the variance of United Kingdom inflation , 1982 .

[11]  Tsoung-Chao Lee,et al.  The Theory and Practice of Econometrics , 1981 .

[12]  Andrew Schmitz,et al.  Beef Wholesale-Retail Marketing Margins and Concentration , 1979 .

[13]  G. Box,et al.  On a measure of lack of fit in time series models , 1978 .

[14]  J. Havlicek,et al.  Some Theoretical Aspects of Short-Term Hog Supply , 1967 .

[15]  Timothy F. Bresnahan,et al.  Empirical studies of industries with market power , 1989 .

[16]  K. Nelson.  Issues And Developments In The U.S. Meatpacking Industry , 1985 .

[17]  Richard E. Just,et al.  Tomatoes, Technology, and Oligopsony , 1980 .

[18]  A. C. Chiang.  Fundamental methods of mathematical economics , 1974 .

[19]  H. Leland..  Theory of the Firm Facing Uncertain Demand , 1972 .

[20]  A. Sandmo.  On the theory of the competitive firm under price uncertainty , 1971 .