What difference does dynamics make? The case of digital cameras
When the well-known BLP model is applied to products with rapid technological changes and declining prices it tends to yield implausible results. A sequence of increasingly sophisticated dynamic demand models, most recently Gowrisankaran and Rysman (2009, hereafter GR), have been developed to overcome these problems. We apply both models to new data on the US digital camera market. In addition, we demonstrate that the GR model can be specified as a BLP model plus an additional set of terms. This suggests that a dynamic model can be estimated as a BLP model plus a non-parametric function which is less computationally demanding. As a first step to implementing this semi-parametric approach we estimate a BLP model augmented with age as a proxy for the non-parametric component. We find that demand for digital cameras is more elastic when demand dynamics is accounted for in both the dynamic model and the BLP model with the age proxy. This suggests that the market is more competitive though the results are consistent with firms engaging in intertemporal price discrimination. Merger simulations predict the lowest price and quantity changes using the GR model.
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- Aguirregabiria, Victor & Nevo, Aviv, 2010.
"Recent developments in empirical IO: dynamic demand and dynamic games,"
27814, University Library of Munich, Germany.
- Victor Aguirregabiria & Victor Aguirregabiria & Aviv Nevo & Aviv Nevo, 2010. "Recent Developments in Empirical IO: Dynamic Demand and Dynamic Games," Working Papers tecipa-419, University of Toronto, Department of Economics.
- Junji Xiao, 2008. "Technological advances in digital cameras: Welfare analysis on easy-to-use characteristics," Marketing Letters, Springer, vol. 19(2), pages 171-181, June.
- Daniel A. Ackerberg, 2003. "Advertising, learning, and consumer choice in experience good markets: an empirical examination," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 44(3), pages 1007-1040, 08.
- Christopher R. Knittel & Konstantinos Metaxoglou, 2008. "Estimation of Random Coefficient Demand Models: Challenges, Difficulties and Warnings," NBER Working Papers 14080, National Bureau of Economic Research, Inc.
- Juan Esteban Carranza, 2010.
"Product Innovation and Adoption in Market Equilibrium: The Case of Digital Cameras,"
BORRADORES DE ECONOMÍA Y FINANZAS
007127, UNIVERSIDAD ICESI.
- Carranza, Juan Esteban, 2010. "Product innovation and adoption in market equilibrium: The case of digital cameras," International Journal of Industrial Organization, Elsevier, vol. 28(6), pages 604-618, November.
- Winston T.H. Koh, 2005.
"The Micro-foundations of Intertemporal Price Discrimination,"
Microeconomics Working Papers
22456, East Asian Bureau of Economic Research.
- Winston Koh, 2006. "The micro-foundations of intertemporal price discrimination," Economic Theory, Springer, vol. 27(2), pages 393-410, January.
- Winston T.H. Koh, 2005. "The Micro-foundations of Intertemporal Price Discrimination," Working Papers 04-2005, Singapore Management University, School of Economics.
- Lavergne, Pascal & Vuong, Quang H, 1996.
"Nonparametric Selection of Regressors: The Nonnested Case,"
Econometric Society, vol. 64(1), pages 207-19, January.
- Lavergne, P. & Vuong, Q., 1992. "Nonparametric Selection of Regressors : the Nonnested Case," Papers 9204, Southern California - Department of Economics.
- Aviv Nevo, 2000. "Mergers with Differentiated Products: The Case of the Ready-to-Eat Cereal Industry," RAND Journal of Economics, The RAND Corporation, vol. 31(3), pages 395-421, Autumn.
- Weifang Lou & David Prentice & Xiangkang Yin, 2008.
"The Effects of Product Ageing on Demand: The Case of Digital Cameras,"
2008.06, School of Economics, La Trobe University.
- Lou, Weifang & Prentice, David & Yin, Xiangkang, 2008. "The Effects of Product Ageing on Demand: The Case of Digital Cameras," MPRA Paper 13407, University Library of Munich, Germany.
- Weifang Lou & David Prentice & Xiangkang Yin, 2008. "The Effects of Product Ageing on Demand: The Case of Digital Cameras," Working Papers 2008.06, School of Economics, La Trobe University.
- Gautam Gowrisankaran & Marc Rysman, 2009.
"Dynamics of Consumer Demand for New Durable Goods,"
NBER Working Papers
14737, National Bureau of Economic Research, Inc.
- Gautam Gowrisankaran & Marc Rysman, 2007. "Dynamics of Consumer Demand for New Durable Goods," Boston University - Department of Economics - Working Papers Series WP2007-024, Boston University - Department of Economics.
- Warner, Elizabeth J & Barsky, Robert B, 1995. "The Timing and Magnitude of Retail Store Markdowns: Evidence from Weekends and Holidays," The Quarterly Journal of Economics, MIT Press, vol. 110(2), pages 321-52, May.
- Michael Waldman, 2003. "Durable Goods Theory for Real World Markets," Journal of Economic Perspectives, American Economic Association, vol. 17(1), pages 131-154, Winter.
- Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-90, July.
- 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.
- Lawrence M. Ausubel & Raymond J. Deneckere, 1987. "One is Almost Enough for Monopoly," RAND Journal of Economics, The RAND Corporation, vol. 18(2), pages 255-274, Summer.
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