Professor of Agricultural and Applied Economics, Wisconsin Institute for Discovery

On leave for public service from Peterson Institute for International Economics

Vanderbilt University

Professor of Agricultural Economics, University of Idaho, USA

Professor of Economics, Simon Fraser University

Semler Chair in Economics, Purdue University

Professor of economics, CNAM (Paris)

Professor of agricultural economics, University of Göttingen

Full Professor International Economics, University of Leuven

Professor Emeritus of European Agricultural Policy, Trinity College Dublin, Ireland