Xingwei Hu Quantitative Micro Software   P.O.Box 4770 Irvine, CA 92616 USA   xingwei_hu@yahoo.com     Biographical Sketch: PhD, 2000, UCLA, Advisor: Lloyd Shapley, Thesis : "Authority Distributions and Interactions in Irreducible Organizations" Recent Publications: [1]"On authority distributions in organizations: equilibrium", Games and Economic Behavior, 45(2003), 132-152 (with Lloyd S. Shapley); [2]"On authority distributions in organizations: controls", Games and Economic Behavior, 45(2003), 153-170 (with Lloyd S. Shapley); [3]"An asymmetric Shaplay-Shubik power index", forthcoming, International Journal of Game Theory   Primary Research Focus: welfare, fairness, game and statistical foundation   JEL Areas: C7 : Game Theory and Bargaining Theory:General C5 : Econometric Modeling: General