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Demand and supply estimation biases due to omission of durability

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  • Chen, Jiawei
  • Esteban, Susanna
  • Shum, Matthew

Abstract

We build a dynamic equilibrium model of a durable goods oligopoly with a competitive secondary market to evaluate the bias in estimating the structural parameters of demand and supply when durability is omitted. We simulate data from our dynamic model and use them to estimate the model's static counterpart. We find that the static estimate of the elasticity of demand is an overestimate of the true elasticity and that the static estimate of the markup is an underestimate. Our results provide a benchmark on the magnitude and sign of the bias when static models are used for economic inference.

Suggested Citation

  • Chen, Jiawei & Esteban, Susanna & Shum, Matthew, 2008. "Demand and supply estimation biases due to omission of durability," Journal of Econometrics, Elsevier, vol. 147(2), pages 247-257, December.
    • Handle: RePEc:eee:econom:v:147:y:2008:i:2:p:247-257
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    References listed on IDEAS

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    7. Takeshi Fukasawa, 2022. "The Biases in Applying Static Demand Models under Dynamic Demand," Discussion Paper Series DP2022-18, Research Institute for Economics & Business Administration, Kobe University, revised Jul 2022.
    8. Andrikopoulos, Athanasios & Markellos, Raphael N., 2015. "Dynamic interaction between markets for leasing and selling automobiles," Journal of Banking & Finance, Elsevier, vol. 50(C), pages 260-270.
    9. Lou, Weifang & Prentice, David & Yin, Xiangkang, 2012. "What difference does dynamics make? The case of digital cameras," International Journal of Industrial Organization, Elsevier, vol. 30(1), pages 30-40.
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