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Dynamic Assessment of Oligopoly, Oligopsony Power, and Cost Efficiency using the New Empirical Industrial Organization in the U.S. Beef Packing Industry AgEcon
Ji, In Bae; Chung, Chanjin.
In this paper, the new empirical industrial organization approach with a dynamic model is simultaneously employed to measure the degree of oligopoly, oligopsony power, and cost efficiency in the U.S. beef packing industry. The oligopsony power is estimated with two effects: cash cattle procurement market power and captive supply market power. The model is estimated by the Generalized Method of Moments using monthly data from 1990 to 2006. The empirical results reveal the presence of market power in both the beef retail market and the cattle procurement market in the sample period. The captive supply is a source of oligopsony market power, but the effect is considerably small. The oligopsony market power is greater and less stable than oligopoly market...
Tipo: Conference Paper or Presentation Palavras-chave: Beef packing industry; Captive supply; Cost efficiency; Industrial concentration; Market power; NEIO; Agricultural and Food Policy; Industrial Organization; Livestock Production/Industries; Marketing; Q13.
Ano: 2010 URL: http://purl.umn.edu/61641
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Time Varying Coefficient: An Application of Flexible Least Squares to Cattle Captive Supply AgEcon
Kim, Man-Keun; Lee, Andrew C..
Although conventional linear regression techniques assume time constancy of parameters time varying coefficient or the problem of structural instability in econometric relationships has been recognized by econometricians. In this study, time varying impact of captive supply on fed cattle cash market price is investigated via flexible least squares approach. Time path of flexible least squares coefficient estimate indicates an approximately four fold increase in price impact of captive supply over the sample period, but even this multiplied price impact is small compared to the effect of boxed beef price which shows negligible time variation. The time path also aids in identification of structural breaks in the price impact of captive supply.
Tipo: Conference Paper or Presentation Palavras-chave: Time varying coefficient; Flexible least squares; Structural break; Captive supply; Research Methods/ Statistical Methods.
Ano: 2005 URL: http://purl.umn.edu/19124
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