In sum, on the benefits side of the equation: more jobs now, $500 billion of additional consumption of goods and services over the next two years, and then a $40 billion a year flow of higher incomes and production each year thereafter. So, what are the likely costs of an extra $500 billion in infrastructure spending over the next two years?
总结一下好处：提高现在的就业率、未来2年内产生5000亿美元额外商品和服务消费、此后每年400亿美元的额外收入流和产量增加。那么，未来两年内增加5000亿美元基础设施支出的潜在成本又是多少呢？