[1] Univ Arkansas, Dept Food Sci, Fayetteville, AR 72704 USA
[2] Univ Arkansas, Dept Agr Econ & Agribusiness, Fayetteville, AR 72704 USA
[3] Univ Arkansas, Inst Food Sci & Engn, Fayetteville, AR 72704 USA
[4] Hershey Co, Hershey, PA 17033 USA
[5] Agr Univ Athens, Dept Agr Econ & Rural Dev, GR-11855 Athens, Greece
[6] Norwegian Agr Econ Res Inst, Oslo, Norway
[7] Korea Univ, Dept Food & Resource Econ, Seoul, South Korea