Caracas is the most expensive expatriate city to live in worldwide for the third successive year.
The second costliest city to maintain an expat lifestyle is the capital of oil-rich Angola, Luanda, due to the extremely high cost of maintaining a secure, expatriate standard of living mainly as a result of importing most goods.
Hong Kong is the third most expensive city for expatriates to live. The past year has seen prices rise in Hong Kong, in US Dollar terms.
Maseru Lesotho is the cheapest city in the world for expatriates to live. Lesotho has long been one of the poorest countries in the world.
http://www.xpatulator.com/cost-of-living-article/International-Expatriate-Cost-of-Living-Comparison-Rankings-April-2016_667.cfm