Performance of traditional cooperatives: the portuguese Douro wine cooperatives João Rebelo | José Caldas | Scott C. Matulich | Show more João Rebelo Portugal University of Trás-os-Montes and Alto Douro (UTAD) Department of Economics, Sociology and Management (DESG) and CETRAD University of Trás-os-Montes and Alto Douro (UTAD) José Caldas Portugal University of Trás-os-Montes and Alto Douro (UTAD) Department of Economics, Sociology and Management (DESG) and CETRADUniversity of Trás-os-Montes and Alto Douro (UTAD) Scott C. Matulich United States Washington State University School of Economic Sciences Submitted: 2016-03-04 | Accepted: | Published: 2011-10-08 DOI: https://doi.org/10.7201/earn.2010.02.07