[1] Fed Univ Rio Grande do Sul PPGA EA UFRGS, Sch Management, Postgrad Programme Management, BR-90010460 Porto Alegre, RS, Brazil
[2] Aarhus Univ, MAPP Ctr Res Customer Relat Food Sect, DK-8210 Aarhus, Denmark
[3] Sun Yat Sen Univ, Sch Business, Guangzhou 510275, Guangdong, Peoples R China
[4] Univ Ghent, Dept Agr Econ, B-9000 Ghent, Belgium
[5] Aalborg Univ, Dept Dev & Planning, DK-2750 Ballerup, Denmark