is a Full Professor at the Technical University in Munich and has been Visiting Professor at Yale, Stanford and Cambridge. He has advised many bidders and governments in CCA and SMRA spectrum auctions, most recently in Austria (2x game theory consulting on the CCA), Czech Republic (game theory consulting for bidder), Canada (2x advising regulator on rules and a bidder in two CCAs), Germany (2x), Australia (ACMA for auction design). The auction software his team coded was used by Siemens and other major German corporations. He is a recognized world expert in market design, optimization, game theory, a nd experimental economics and co-editor of the Handbook on Spectrum Auction Design.