Eight out of the 10 most expensive cities in the world for expatriates are in Asia. The comparison is measured through currency movements against the dollar and takes into account the cost of living for housing, transportation, food, clothing, household goods and entertainment.

This year's survey included 500 cities around the globe. Interestingly, the majority of the cities within Europe, Australia and Africa have fallen in the rankings. Alternatively, we have seen a climb among U.S. cities due to the dollar being strong.

With the fluctuation of all currencies and depending on where you place your expatriates on assignment, we highly recommend doing at least an annual review of the allowance-based benefits for all your active assignments. This is to ensure that the fluctuations of the cost of living are kept up to date with what the expatriates are receiving.