The Principality of Monaco has the highest density of millionaires in the world, according to a research report. About one in three in the city-state of Monaco is a millionaire, according to a study done by Wealth Insight and wealth management magazine SPEAR’s. The study ranked ranks cities by percentage of millionaires in its total population. Wealth Insight is a London-based wealth consultancy. The study classified 29.21 per cent of […]