但没有明显的证据表明，如果金融-保险系统维持1950年的水平，而没有像过去20年那样出现爆发式增长，那么今天美国经济的生产率会比现在低6 % 。
But it is not obvious that the US economy today would be 6% less productive if it had had the finance-insurance system of 1950 rather than the one that prevailed during the past 20 years.