Wealth September 8, 2016updated 26 Sep 2016 10:56am Billionaire makers: The cities growing the world’s wealthiest By Spear's New York has topped the list of cities where the most billionaires were born, according to analysis by WealthInsight and Spear’s magazine. Content from our partners Protecting the priceless: why collections deserve a personal approach to insurance Abu Dhabi’s super-prime market: culture and lifestyle fuel rise as a global powerhouse Lagos Private Wealth Conference 2025: Shaping Africa’s Legacy of Prosperity Related Wealth ‘Abuse of weakness’: what the Bettencourt case can still teach family offices about incapacity Wealth Argentina readies citizenship by investment as the EU leans on the Caribbean Wealth HSBC Private Bank reshuffles UK leadership, adds role to focus on UAE expats Spear's