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An econometric analysis of the effects of market liberalization on price dynamics and price volatility


  • Jean-Paul Chavas


  • Kwansoo Kim


The paper investigates price dynamics under market liberalization, with a focus on the effects of lowering price floors. We analyze price dynamics by specifying and estimating a dynamic Tobit model under time-varying volatility, where the market price is censored by a government-set support price. The model is applied to the U.S. butter market over the last three decades. The econometric results show how the price support program affects both expected prices and the volatility of prices. It is found that the censoring effects of a price support program can be significant and large even if the price support is set relatively low.
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Suggested Citation

  • Jean-Paul Chavas & Kwansoo Kim, 2006. "An econometric analysis of the effects of market liberalization on price dynamics and price volatility," Empirical Economics, Springer, vol. 31(1), pages 65-82, March.
  • Handle: RePEc:spr:empeco:v:31:y:2006:i:1:p:65-82 DOI: 10.1007/s00181-005-0015-8

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    References listed on IDEAS

    1. Williams,Jeffrey C. & Wright,Brian D., 2005. "Storage and Commodity Markets," Cambridge Books, Cambridge University Press, number 9780521023399, March.
    2. Robinson, P M & Bera, Anil K & Jarque, Carlos M, 1985. "Tests for Serial Dependence in Limited Dependent Variable Models," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 26(3), pages 629-638, October.
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    4. Lee, Lung-fei, 1999. "Estimation of dynamic and ARCH Tobit models," Journal of Econometrics, Elsevier, vol. 92(2), pages 355-390, October.
    5. Pesaran, M Hashem & Samiei, Hossein, 1992. "An Analysis of the Determination of Deutsche Mark/French Franc Exchange Rate in a Discrete-Time Target-Zone Model," Economic Journal, Royal Economic Society, vol. 102(411), pages 388-401, March.
    6. Nerlove, Marc & Fornari, Ilaria, 1998. "Quasi-rational expectations, an alternative to fully rational expectations: An application to US beef cattle supply," Journal of Econometrics, Elsevier, vol. 83(1-2), pages 129-161.
    7. Potter, Simon M., 2000. "Nonlinear impulse response functions," Journal of Economic Dynamics and Control, Elsevier, vol. 24(10), pages 1425-1446, September.
    8. Holt, Matthew T & Johnson, Stanley R, 1989. "Bounded Price Variation and Rational Expectations in an Endogenous Switching Model of the U.S. Corn Market," The Review of Economics and Statistics, MIT Press, vol. 71(4), pages 605-613, November.
    9. Morgan, I G & Trevor, R G, 1999. "Limit Moves as Censored Observations of Equilibrium Futures Price in GARCH Processes," Journal of Business & Economic Statistics, American Statistical Association, vol. 17(4), pages 397-408, October.
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    Cited by:

    1. Matthias Kalkuhl & Lukas Kornher & Matthias Kalkuhl & Irfan Mujahid, 2015. "Food price volatility in developing countries – the role of trade and storage," EcoMod2015 8415, EcoMod.
    2. McNamara, Kevin T. & Weiss, Christoph R., 2005. "Farm Household Income and On-and-Off Farm Diversification," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 37(01), April.
    3. Wocken, Meike & Kneib, Thomas, 2012. "Tobit regression to estimate impact of EU market intervention in dairy sector," 123rd Seminar, February 23-24, 2012, Dublin, Ireland 122528, European Association of Agricultural Economists.
    4. Feil, Jan-Henning & Musshoff, Oliver & Roeren-Wiemers, Tobias, 2014. "Farm level effects of policy reforms in Germany: First empirical evidence," Journal of Policy Modeling, Elsevier, vol. 36(6), pages 1036-1047.
    5. Xiaodong Du & Fengxia Dong, 2016. "Responses to market information and the impact on price volatility and trading volume: the case of Class III milk futures," Empirical Economics, Springer, vol. 50(2), pages 661-678, March.
    6. van Winsen, Frankwin & Wauters, Erwin & Lauwers, Ludwig H. & de Mey, Yann & Van Passel, Steven & Vancauteren, Mark, 2011. "Combining risk perception and risk attitude: A comprehensive individual risk behavior model," 2011 International Congress, August 30-September 2, 2011, Zurich, Switzerland 115749, European Association of Agricultural Economists.
    7. Femenia, Fabienne, 2010. "Impacts of Stockholding Behaviour on Agricultural Market Volatility: A Dynamic Computable General Equilibrium Approach," Journal of International Agricultural Trade and Development, Journal of International Agricultural Trade and Development, vol. 59(3).

    More about this item


    Price dynamics; Censored regression; Market liberalization; Price volatility; D4; C5; Q0;

    JEL classification:

    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • C5 - Mathematical and Quantitative Methods - - Econometric Modeling
    • Q0 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General


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