“…The result of these forces is that the industry has evolved to optimise efficiency and minimise transaction costs, and this has resulted in fewer larger farms, the concentration of farming, and specialisation (Schrader, 1986;Frank & Henderson, 1992;Rhodes, 1993;Ling & Liebrand, 1995;Pasour, 1998). Agriculture has therefore seen a move away from open market production and has become increasingly vertically coordinated with agribusiness in order to produce a greater range of high-quality differentiated products (Babb, 1992;Sporleder, 1992;Royer, 1995;Peterson & Wysocki, 1998;Pasour, 1998;Pritchett & Liu, 1998;Goodhue, 1999;Sofranko et al, 2000).…”