Mind the gap: dearest and cheapest cities for business visits

Sleeping rough might be the order of the day in Sydney, where one night in a five-star hotel can cost a crippling $874. Photo: Deposit

Patrick Edwards

Irish business travellers and expat workers take note: take plenty of cash for Zurich, don't lose your smartphone in Brazil, avoid renting a car in the UK, never smoke in Sydney, and let someone else buy the beer in Singapore.

Deutsche Bank might be tagged as an institution better known for economic analyses and sober forecasts, but the German giant has an uber fun side too.