First Author:   Richard T Froyen University of North Carolina froyen@email.unc.edu   Dept of Economics, Gardner Hall, CB #3305, University of North Carolina Chapel Hill, 27599, United States       Second Author: Alfred V Guender University of Canterbury alfred.guender@canterbury.ac.nz   Department of Economics and Finance, Private Bag 4800, University of Canterbury Christchurch, 8140, New Zealand       www.econ.canterbury.ac.nz