1. Agricultural School (ESAV) and CERNAS-IPV Research Centre , Polytechnic Institute of Viseu (IPV) , Portugal
2. Department of Economics & NIPE, Economics & Management School, University of Minho , 4700 Braga , Portugal
3. Burgundy School of Business, School of Wine and Spirits Business , Dijon , France
4. Universitat Jaume I, Laboratorio de Economia Experimental & LEE , Castellon , Spain