hedonic methods may overstate the price decline of personal computers. We model computers as a durable good and suppose that … the true price of computer services at the time the machine is purchased with the concurrent level of software. To assess … these theoretical results we estimate the model and find that before 2000 the hedonic price index constructed with BLS …

price and quantity information to estimate the quality of products exported to the U.S. Higher quality is assigned to … products with higher market shares conditional on price. The estimated qualities reveal substantial heterogeneity in product …