Danger is hard to quantify, since one person’s nuisance may be another person’s nightmare, but Mercer Consulting recently released a global report on personal safety that aims to rank cities by their safety levels to help companies compensate employees fairly when placing them on assignments. It covers 221 cities ranked against New York as the base and measures them by criteria such as internal stability, crime levels, law enforcement effectiveness and the host countries’ international relations. Within the 39 criteria it examines what has the largest effect on the expat community.

