1. Département d’économie agroalimentaire et des sciences de la consommation; Université Laval Pavillon Paul-Comtois; 2425 rue de l'Agriculture Québec Québec Canada G1V 0A6
2. Department of Food; Agricultural and Resource Economics (FARE); University of Guelph; J.D. MacLachlan Building Guelph Ontario Canada N1G 2W1
3. School of Economics; University of Maine; Winslow Hall, Office 207 Orono ME 04469