Biswajit Maitra Department of Economics, University of Gour Banga, India.   Department of Economics,University of Gour Banga P.O. Mokdumpur, PIN 732103 Malda, West Bengal 732103 India   b_moitra@yahoo.com             JEL Areas: E : Macroeconomics and Monetary Economics C2 : Single Equation Models; Single Variables: General