Soaring tech valuations and stock-market gains have boosted the number of billionaires and the wealth they hold
Germany leads Europe with 171 billionaires, followed by Italy, the UK, and France, while Greece is home to 16 ultra-wealthy individuals, highlighting the continent’s stark wealth concentration
Shipping magnates and their families the most represented
Tax on fewer than 3,000 billionaires could raise nearly $250 billion annually, report says