UBS
http://en.wikipedia.org/wiki/UBS
The most expensive and richest cities in the world
http://www.citymayors.com/economics/richest_cities.html
15 September 2012: The UBS survey of 72 international cities
found that employees in Zurich, Geneva
and Copenhagen
had the highest gross earnings. Although Copenhagen
is still in the top three of the rankings, it used to be number one in 2009.
After deduction of taxes and social security contributions, however, Luxembourg overtakes Copenhagen due to the higher level of
deductions in the Danish capital. Delhi and
Mumbai bring up the rear of the earnings rankings, where workers receive only
around six per cent of the average Zurich
wage.
The most expensive cities in the world, Asia and Europe
http://www.citymayors.com/statistics/expensive-cities-intro.html