Although it fell to third place in Asia, behind Ashgabat and Tokyo, Hong Kong's place in the rankings has remained stable this year as the sixth most expensive location in the world for expatriates.Singapore is the seventh most expensive location in Asia for expat workers to live, and 13th most expensive in the world.Ashgabat, the capital of Turkmenistan, remains the most expensive city in the world for expats for a second year running. Many European cities have dropped out of the top 100 since last year.