Owing to global economic downturn and persistent financial crisis that sent many businesses reeling, the cost of living for expatriates based in the GCC has risen, according to the latest “Cost of Living Survey” from leading global HR consulting firm Mercer. The report noted that Dubai is the most expensive city in the GCC for expatriates to live in, having risen to 20th place from a ranking of 52nd last year. The UAE capital Abu Dhabi isn't far behind, rising 39 places from 65th to 26th in the ranking. Though the cost of living for expats also increased elsewhere in the region, the survey said Jeddah is the least expensive city in the region ranking 109th from 126th. Riyadh dropped from 119th to 90th. Kuwait City moved from 94th to 77th and Manama, Bahrain from 112th to 82nd. The remaining cities in the GCC didn't fall in the 143 rankings of the study. Based on the spending habits of expat communities in 143 cities across six continents, the Mercer Cost of Living Survey measures the comparative cost of over 200 items in each location, including housing, transport, food, clothing, household goods and entertainment; where possible these are international brands. Bassam Gazal, who heads the Mercer Survey practice across the Middle East, said: “As a direct impact of the economic downturn over the last year, there have been significant fluctuations in most of the world's currencies. As currency fluctuations play a large role in the cost of living rankings this, has had a profound impact on this year's ranking.” “In the cases of Dubai and Abu Dhabi, a stronger US dollar meant an increase in rankings for these cities. That being said, in this study the currency fluctuations and inflation rates affect only the expatriate programs for which the Cost of Living survey is dependent on - accounting for the jump in rankings for the GCC countries included.” Globally, Tokyo knocked Moscow off the top spot to become the world's most expensive city for expatriates. Osaka is in second position, up nine places since last year, with Moscow now in third place. Geneva climbs four places to fourth position and Hong Kong moves up one to reach fifth. Johannesburg has replaced Asunci?n in Paraguay as the least expensive city in the ranking. In Mercer's survey, New York is used as the base city for the index and scores 100 points, all cities are compared against New York and currency movements are measured against the US dollar. It is the world's most comprehensive cost of living survey and is used to help multinational companies and governments determine compensation allowance for their expatriate employees. The figures for Mercer's cost of living and rental accommodation costs comparisons are based on a survey conducted in March 2009. The 2009 comparisons are based on a similar survey conducted in March 2008. The information is used by governments and major companies to protect the purchasing power of their employees when transferred abroad; rental accommodation costs data is used to assess local expatriate housing allowances. The choice of cities surveyed is based on the demand for corresponding data from companies and governmental organizations. __