Sompong Dhompongsa Author

Songsak Sriboonchitta is an associate professor and dean of the Faculty of Economics at Chiang Mai University in Thailand.

Wing-Keung Wong is a professor of economics at Hong Kong Baptist University in China.

Sompong Dhompongsa is a professor of mathematics at Chiang Mai University in Thailand.

Hung T. Nguyen is a professor of mathematical sciences at New Mexico State University in Las Cruces.