The Validity of Purchasing Power Parity (PPP) Theory in ASEAN-Five Economies: The Bounds Test Approach Written by Chee-Keong Choong , Wai-Ching Poon, Muzafar Shah Habibullah and Zulkornain Yusop on 07 June 2016. Posted in Vol.7 No.1, 2006 International Journal of Business and SocietyVol.7 No.1, 2006, 1-9 Abstract