TY - JOUR AU - Smith,V. Kerry AU - Evans,Mary F. AU - Banzhaf,H. Spencer AU - Poulos,Christine TI - Can Weak Substitution be Rehabilitated? JF - National Bureau of Economic Research Working Paper Series VL - No. 13903 PY - 2008 Y2 - March 2008 UR - http://www.nber.org/papers/w13903 L1 - http://www.nber.org/papers/w13903.pdf N1 - Author contact info: V. Kerry Smith Department of Economics W.P. Carey School of Business P.O. Box 879801 Arizona State University Tempe, AZ 85287-9801 Tel: 480/727-9812 Fax: 480/965-0748 E-Mail: kerry.smith@asu.edu Mary F. Evans The Robert Day School of Economics and Finance Claremont McKenna College 500 E. Ninth Street Claremont, CA 91711 E-Mail: Mary.Evans@ClaremontMcKenna.edu H. Spencer Banzhaf Department of Economics Andrew Young School of Policy Studies Georgia State University P.O. Box 3992 Atlanta, GA 30302 Tel: 404/413-0252 Fax: 404/413-0248 E-Mail: hsbanzhaf@gsu.edu Christine Poulos RTI International Public Health and Environment Division Research Triangle Park, N.C. E-Mail: cpoulos@rti.org AB - This paper develops a graphical analysis and an analytical model that demonstrate how weak substitution can be used for non-market valuation. Both weak complementarity and weak substitution can be evaluated as restrictions that allow quantity or quality changes in non-market goods to be described as price changes that yield equivalent changes in individual well being. They are Hicksian equivalents in that the price changes yield the same utility changes as would the quantity or quality changes. After discussion of several potential applications of weak substitution, the paper develops the parallel between the restriction and recent strategies from modeling differentiated goods. ER -