Zurich is the second most expensive city in the world for high-net-worth individuals, behind Singapore, according to a ranking by Julius Bär bank. Zurich climbed three places compared with last year, according to the latest Julius Bär Lifestyle Index. The index calculates the cost of maintaining an “upmarket standard of living”. The main reason for the rise is said to have been the appreciation of the Swiss franc. + Switzerland’s super-rich: essential contributors or social threat? By global sta