All Rights Reserved
AccessEcon LLC 2006, 2008.
Powered by MinhViet JSC

 





Patrick marie Nga ndjobo
University of Maroua
 
,
 
patrickndjobo@yahoo.fr
 
 
 
 
 
 
JEL Areas:
J6 : Mobility, Unemployment, and Vacancies: General
R4 : Transportation Systems: General