Tajul ariffin Masron Universiti Sains Malaysia   Universiti Sains Malaysia Universiti Sains Malaysia Minden, Penang 11800 Malaysia   tams@usm.my   https://som.usm.my/index.php/academic-staff/546-dr-tajul-ariffin-masron           JEL Areas: C5 : Econometric Modeling: General F : International Economics