Dynamics of Consumer Demand for New Durable Goods

Gautam Gowrisankaran, Marc Rysman
2012 Journal of Political Economy  
This paper specifies and estimates a dynamic model of consumer preferences for new durable goods with persistent heterogeneous consumer tastes, rational expectations about future products and repeat purchases over time. Most new consumer durable goods, particularly consumer electronics, are characterized by relatively high initial prices followed by rapid declines in prices and improvements in quality. The evolving nature of product attributes suggests the importance of modeling dynamics in
more » ... mating consumer preferences. We estimate the model on the digital camcorder industry using a panel data set on prices, sales and characteristics. We find that dynamics are a very important determinant of consumer preferences and that estimated coefficients are more plausible than with traditional static models. We use the estimates to evaluate cost-of-living indices for new consumer goods and dynamic demand elasticities. * We thank
doi:10.1086/669540 fatcat:k5n664zoqngclccg7xry2le2ra