How come Hamilton city in Bermuda is the most expensive city in the world?

@shynu44 (4770)
April 21, 2017 12:19pm CST
Hamilton Bermuda is not that popular and I am surprise the city overtakes New York and San Francisco in the lists of most expensive cities in the world.
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1 response
@Kandae11 (35969)
21 Apr 17
I would like to know why.