Xingwei Hu International Monentary Fund   , 20006 USA   xhu@imf.org     Biographical Sketch: PhD, UCLA, 2000 (advisor: Lloyd S. Shapley) Selected publications: "On authority distributions in organizations: equilibrium," Games and Economic Behavior, 45(2003), 132-152 (with L.S.Shapley); "On authority distributions in organizations: controls," Games and Economic Behavior, 45(2003), 153-170 (with L.S.Shapley); "An asymmetric Shaplay-Shubik power index," International Journal of Game Theory, 34(2006), 229-240.   Primary Research Focus: social welfare, fairness, voting, foundation of statistics, finance   JEL Areas: C7 : Game Theory and Bargaining Theory:General C5 : Econometric Modeling: General