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Time-Varying Parameter in the Almost Ideal Demand System and the Rotterdam Model: Will the Best Specification Please Stand Up?

Author

Listed:
  • Isaac Kalonda-Kanyama
  • William A. Barnett

Abstract

We use Monte Carlo simulations to assess the ability of the Rotterdam model and the three versions of the almost ideal demand system (AIDS) to recover the time-varying elasticities of a true demand system and to satisfy theoretical regularity. We find that the Rotterdam model performs better at recovering the signs of all the time-varying elasticities. More importantly, the RM has the ability to track the paths of time-varying income elasticities, even when the true values are very high. The linear-approximate AIDS, not only performs poorly at recovering the time-varying elasticities but also badly approximates the nonlinear AIDS.
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Suggested Citation

  • Isaac Kalonda-Kanyama & William A. Barnett, 2013. "Time-Varying Parameter in the Almost Ideal Demand System and the Rotterdam Model: Will the Best Specification Please Stand Up?," ERSA Working Paper Series 335, Economic Research Southern Africa.
    • Handle: RePEc:rza:ersawp:335
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    2. Zhang, Han & Zhao, Qing & Kuuluvainen, Jari & Wang, Changhai & Li, Shiping, 2015. "Determinants of China's lumber import: A bounds test for cointegration with monthly data," Journal of Forest Economics, Elsevier, vol. 21(4), pages 269-282.
    3. Clements, Kenneth W. & Gao, Grace, 2015. "The Rotterdam demand model half a century on," Economic Modelling, Elsevier, vol. 49(C), pages 91-103.
    4. Irfan, Muhammad & Cameron, Michael P. & Hassan, Gazi, 2018. "Household energy elasticities and policy implications for Pakistan," Energy Policy, Elsevier, vol. 113(C), pages 633-642.
    5. Libo Xu & Apostolos Serletis, 2022. "The Demand for Assets: Evidence from the Markov Switching Normalized Quadratic Model," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 54(4), pages 989-1025, June.
    6. Yangchuan Wang & Olga Isengildina Massa & Shamar L. Stewart, 2024. "Time‐varying reaction of U.S. meat demand to animal disease outbreaks," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 46(3), pages 983-1009, September.
    7. Atasoy, Filiz Guneysu & Zhang, Daowei, 2025. "Analyzing European Union wood pellet's import demand through the application of the almost ideal demand system and Rotterdam model," Renewable Energy, Elsevier, vol. 241(C).

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    Keywords

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    JEL classification:

    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis

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