wakpalu@gimpa.edu.gh ; wakpalu@yahoo.com
School of Research and Graduate Studies (SRGS) Ghana Institute of Management and Public Administration (GIMPA)
Ghana
nnaemeka.chukwuone@unn.edu.ng
08051242411
Department of Agricultural Economics and Resource and Environmental Policy Research Centre, University of Nigeria Nsukka
Nigeria
jmaldona@uniandes.edu.co
Department of Economics. Universidad de Los Andes. Bogotá D.C.
Colombia
