Expatriates moving to Switzerland, home to some of the biggest private banks, commodity traders and pharmaceuticals companies, earn an average of more than $193,000 (£144,151).

That’s the highest in the world and 54 per cent more than if they’d stayed at home, a study published Wednesday by HSBC. That boost in remuneration is only surpassed by the 58 per cent increase enjoyed by expats relocating to Saudi Arabia’s petrodollar economy.

Switzerland leads HSBC’s economics ranking -- measuring issues from personal finances and career progression to the strength of the local economy -- for a third straight year.

Almost eight in 10 expats said they had more disposable income after moving to the home of Credit Suisse, drugmaker Roche and commodities trader Mercuria Energy.

“Switzerland has always been a high achiever for economics,” said Dean Blackburn, head of HSBC Expat. “The majority of expats there are in full-time employment with improved earnings prospects.

Expats in Switzerland are also some of the most confident in the local economy.”

Norway and Germany placed second and third for economics, followed by Singapore, which topped the overall country rankings for the third year, according to the annual HSBC Expat Explorer report.

The city-state, where foreigners make up more than 60 per cent of the population, derives its top ranking by also scoring well in categories for experience and family.

The former measures quality of life, integration with locals and ease of finding accommodation, while the latter captures social life, education and raising children.

Still, while a fat wallet helps, it can’t always buy bliss.

Switzerland dropped to No. 11 in HSBC’s overall expat country rankings because of low ratings in the experience and family categories.

While the nation of iconic ski resorts from Zermatt to St Moritz scored well for lifestyle, it was ranked 36th for the ease of integrating with local people and forming friendships.

Similarly, the country with more than 2 million foreign residents was judged a good place to bring up children, but only placed 44th out of 46 for social life and how welcoming it was from a diversity perspective.

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Achieving Goals

Those categories also dragged down Saudi Arabia to 40th in the overall ranking, just ahead of China, with Egypt propping up the list.

The strong personal finances of expats living in the desert kingdom are countered by the weakness of the Saudi economy, which is facing the worst slowdown since the global financial crisis.

Goldman Sachs chief executive Lloyd Blankfein said Saudi Arabia must address cultural differences with the West to attract more foreign workers as it seeks to diversify its economy away from oil.

That could involve creating districts where “certain behaviours” are allowed and other places where they are not, he said last week.

In general, moving abroad is financially rewarding, with expats increasing their income by an average of 25 per cent, according to HSBC’s survey of more than 27,500 people from 159 countries and territories.

“From home ownership to retirement preparation, expats can achieve their lifelong goals more quickly,” Mr Blackburn said.