H. Spencer Banzhaf

Department of Economics 

Georgia State University 

hsbanzhaf@gsu.edu, +1(404)413-0252

Garth Heutel

Department of Economics 

Georgia State University 

gheutel@gsu.edu, +1(404)413-0159

Thomas A. Mroz

Department of Economics 

Georgia State University 

tmroz@gsu.edu, +1(404)413-0163