Mercer Cost of Living Ranking

Mercer's annual survey ranks more than 200 cities by cost of living and is what multinational employers use to set expat assignment pay, which makes it a useful reality check against the more casual crowdsourced tools. The public summary ranking is free; the full dataset behind it is a paid corporate product. Worth a look for anyone negotiating a relocation package or curious how their city stacks up by a stricter methodology.