TY - JOUR AU - Deaton,Angus AU - Ng,Serena TI - Parametric and Non-Parametric Approaches to Price and Tax Reform JF - National Bureau of Economic Research Working Paper Series VL - No. 5564 PY - 1996 Y2 - May 1996 UR - http://www.nber.org/papers/w5564 L1 - http://www.nber.org/papers/w5564.pdf N1 - Author contact info: Angus S. Deaton 328 Wallace Hall Woodrow Wilson School Princeton University Princeton, NJ 08544-1013 Tel: 609/258-5967 Fax: 609/258-5974 E-Mail: deaton@princeton.edu Serena Ng Department of Economics Columbia University 440 W. 118 St. International Affairs Building, MC 3308 New York NY 10027 Tel: 212-854-5488 E-Mail: serena.ng@columbia.edu AB - In the analysis of tax reform, when equity is traded off against efficiency, the measurement of the latter requires us to know how tax- induced price changes affect quantities supplied and demanded. In this paper, we present various econometric procedures for estimating how taxes affect demand. We examine advantages and disadvantages of parametric methods of tax reform analysis and suggest that the nonparametric `average derivate estimator' is a useful alternative. We apply both parametric and nonparametric methods to analyze possible price reform for foods in rural Pakistan, and discuss the issues that remain to be dealt with in empirical welfare analyses. ER -