First Author:   Chen Feng Ng California State University Long Beach chen.ng@csulb.edu   Department of Economics, 1250 Bellflower Blvd Long Beach, 90840-4607, USA       Second Author: Elaine F. Frey California State University Long Beach elaine.frey@csulb.edu   Department of Economics, 1250 Bellflower Blvd Long Beach, 90840-4607, USA