TY - JOUR AU - Stiglitz,Joseph E. AU - Sah,Raaj Kumar TI - The Social Cost of Labor, and Project Evaluation: A General Approach JF - National Bureau of Economic Research Working Paper Series VL - No. 1229 PY - 1986 Y2 - July 1986 UR - http://www.nber.org/papers/w1229 L1 - http://www.nber.org/papers/w1229.pdf N1 - Author contact info: Joseph E. Stiglitz Uris Hall, Columbia University 3022 Broadway, Room 814 New York, NY 10027 Tel: 212/854-0671 Fax: 212/662-8474 E-Mail: jes322@columbia.edu Raaj Sah University of Chicago 1155 East 60th The Harris School Chicago, IL 60637 E-Mail: r-sah@uchicago.edu AB - This paper develops a general methodology for analyzing shadow wage (and other shadow prices). Our approach is to identify those reduced form relationships describing the economy which are central to the determination of the shadow wage, and use these to obtain simple formulae for the shadow wage. Among the aspects of the economy on which we focus are: (i) the difference between the domestic and international prices, (ii) the equilibrating mechanisms in the economy, (iii) the mechanisms which determine earnings of industrial and agricultural workers, (iv) the nature of migration, and (vi) the intertemporal trade-offs and the attitudes towards inequality. These aspects are modelled in a general manner, which can be specialized to a number of alternative hypotheses concerning technology, behavioral postulates, and institutional settings. Most earlier results on the shadow wages are derived as special cases of our formulae. In addition, we identify a number of new qualitative results concerning the relationship between the shadow wage and the market wage. ER -