Some Results on Approximating the Minimax Solution in Approval Voting Rob LeGrand Washington University, St. Louis, Missouri, U.S.A. Evangelos Markakis Center for Mathematics and Computer Science (CWI), Amsterdam, Netherlands Aranyak Mehta IBM Almaden Research Center, San Jose, California, U.S.A. pdflogo.jpg AAMAS07_0283_cab550d44024d436219a93f97bb7f519