Sinan Ertemel Istanbul Technical University   Department of Economics Rice University MS 22 P.O Box 1892 Houston, Texas 77251-1892 United States   ertemels@itu.edu.tr   http://www.owlnet.rice.edu/~sinan.ertemel           JEL Areas: D6 : Welfare Economics: General D8 : Information, Knowledge, and Uncertainty: General