Tags purchasing power of Vietnamese citizens Slight increase seen in buying power Friday, Oct 31, 2014 The purchasing power of Vietnamese citizens increased slightly in October 2014, according to the General Statistics Office (GSO). Purchasing power stays low as CPI increases Wednesday, Oct 01, 2014 The purchasing power of Vietnamese citizens in September 2014 reached VND244.5 trillion (US$11.65 billion), representing a 0.7-per cent month-on-month increase and a 9.1-per cent year-on-year increase.