“…Some products of this sector that have been studied by this method are breakfast cereals (Morgan et al, 1979;Stanley and Tschirhart, 1991;Shi and Price, 1998), the aquaculture industry (McConnell and Strand, 2000;Carroll et al, 2001), apples (Tronstad et al, 1992;Carew, 2000;Carew and Smith, 2004;Troncoso and Aguirre, 2007), organic tomatoes (Huang and Lin, 2007), avocados (Troncoso et al, 2008), beef (Unnevehr and Bard, 1993;Wahl et al, 1995;Loureiro and McCluskey, 2000;Boland and Schroeder, 2002;Gracia and Pérez, 2004), and pork (Parcell and Schroeder, 2007).…”