Imtiaz Arif IQRA University   Block 2, Gulshan-e-Iqbal Karachi, Pakistan 75300 Pakistan   arif.i@iuk.edu.pk   http://iuk.edu.pk/profile/imtiaz.arif           JEL Areas: C1 : Econometric and Statistical Methods: General G1 : General Financial Markets: General (includes Measurement and Data)