1. Department of Economics and Institute for the Study of International Development, McGill University, Montreal, Quebec H3A 2T7, Canada;
2. Department of Economics and Management, University of Luxembourg, Luxembourg, L-1359 Luxembourg;
3. Erasmus Center for Applied Sports Economics, Department of Applied Economics, Erasmus School of Economics, Erasmus University Rotterdam, 3062 PA Rotterdam, Netherlands;
4. World Bank Group;
5. Centre Interuniversitaire de Recherche en Analyse des Organisations, Montreal, Quebec H3A 2M8, Canada