TY - INPR JF - Review of Economics and Statistics A1 - Blundell, R N1 - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions. N2 - Berkson errors are commonplace in empirical microeconomics. In consumer demand this form of measurement error occurs when the price an individual pays is measured by the (weighted) average price paid by individuals in a group (e.g., a county), rather than the true transaction price. We show the importance of Berkson errors for demand estimation with nonseparable unobserved heterogeneity. We develop a consistent estimator using external information on the true price distribution. Examining gasoline demand in the U.S., we document substantial within-market price variability. Accounting for Berkson errors is quantitatively important. Imposing the Slutsky shape constraint reduces sensitivity to Berkson errors. UR - https://doi.org/10.1162/rest_a_01018 ID - discovery10113004 Y1 - 2020/// TI - Estimation of a Heterogeneous Demand Function with Berkson Errors AV - public ER -