Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Using the marginal value of characteristics, the author shows how to construct bounds on the exact hedonic price index. When prices are above marginal costs, then his bounds still apply but the value of characteristics cannot be measured so easily from a hedonic regression. Since the price-cost markups are an omitted variable, they will bias the coefficients obtained. For a special class of utility functions, the author argues that a linear regression will still provide a measure of the marginal value of characteristics but a log-linear regression will overstate these values. Copyright 1995 by MIT Press.