According to some back-of-the-envelope calculations, the wealth of the world’s 50 richest people totals $1.5 trillion, equivalent to 175% of Indonesia’s GDP, or a little more than Japan’s foreign-exchange reserves. If one assumes that this wealth yields 8% per year, the annual income of the world’s 50 wealthiest people is close to the total income of the poorest one billion – in other words, those living below the poverty line.
简单计算就可知道，世界最富有的50人总共拥有1.5万亿美元，相当于印尼GDP的175%，略高于日本的外汇储备。如果假设这笔财富每年产生8%的收益率，那么世界最富有的50人的年收入就接近于最贫穷的十亿人（即生活在贫困线以下的人）的总和。