Marco Runkel Ludwig-Maximilians-University Munich, Department of Economics, Public Finance Group   Ludwig-Maximilians-University Munich Department of Economics, Public Finance Group Ludwigstr. 28/Vgb. III Munich, Bavaria D-80539 Germany   marco.runkel@lrz.uni-muenchen.de   http://www.vwl.uni-muenchen.de/ls_huber/       Primary Research Focus: public economics, industrial organization   JEL Areas: H0 : Public Economics: General L0 : Industrial Organization: General