Rakesh Vohra MEDS Department, Kellogg School of Management   MEDS Department, Kellogg School of Management Northwestern University 2001 Sheridan Road Evanston, IL 60208-2009 USA   r-vohra@nwu.edu   http://www.kellogg.nwu.edu/faculty/vohra/htm/vohra.htm           JEL Areas: C7 : Game Theory and Bargaining Theory:General D0 : Microeconomics: General