Department of Labor Logo United States Department of Labor
Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Bureau of Labor Statistics > Office of Survey Methods and Research > Publications > Browse Research Papers

Estimating Dynamic Price Indexes

Alan H. Dorfman and Mary F. Kokoski

Abstract

Standard price indexes fix on a set of goods, each very precisely specified as to what it is and where sold. Measurements of the change in price of each good are made, and these combined by formula to get an overall measure of change. In a "dynamic universe", goods disappear and new ones appear, making a fixed product index difficult to construct. In cross area indexes, in which we compare the overall prices of goods in one area to those in another, there may be no common specific goods available. In both cases, indexes are constructed using hedonic regression. In hedonic regression, prices are modeled on the properties of the goods, and the properties serve as the basis of comparison from one time period to the next or one area to another. We here investigate the behavior of dynamic price indexes compared to standard indexes, and of estimators of dynamic indexes based on samples.