[1] Colorado State Univ, Restaurant & Resort Management Program, Ft Collins, CO 80526 USA
[2] Kyung Hee Univ, Coll Hotel & Tourism, Seoul, South Korea
[3] E Carolina Univ, Ctr Sustainable Tourism, Greenville, NC USA
[4] Temple Univ, Sch Tourism & Hospitality Management, Philadelphia, PA 19122 USA