TY - JOUR AU - Courant,Paul AU - Rubinfeld,Daniel L. TI - On the Measurement of Benefits in an Urban Context: Some General Equilibrium Issues JF - National Bureau of Economic Research Working Paper Series VL - No. 114 PY - 1975 Y2 - November 1975 UR - http://www.nber.org/papers/w0114 L1 - http://www.nber.org/papers/w0114.pdf N1 - Author contact info: Paul Courant University Librarian 818 Hatcher South The University of Michigan Ann Arbor, MI 48109-1205 Tel: 734-764-9356 E-Mail: pnc@umich.edu Daniel L. Rubinfeld Robert L. Bridges Professor of Law and Professor of Economics Emeritus 788 Simon Tower, Boalt Hall University of California, Berkeley Berkeley, CA 94720 Tel: 510/642-1959 Fax: 510/642-3767 E-Mail: drubinfeld@law.berkeley.edu AB - The validity of using local market data to measure the benefits associated with policies adopted in an urban area is investigated .It is shown that the rest of the world is affected by taxing decisions undertaken in a single urban area, so that local data cannot perfectly measure the welfare effects of a policy change. Specifically, the fact that the willingness to pay for a tax increase is positive in the rest of the world suggests that cost-benefit analyses which do not account for the rest of the world may be biased. ER -