数据显示，在1950年到1973年之间，在这段和平时期，政府对市场经济的干预相当成功，在此期间即没有全球范围的经济萧条，而且全球GDP（人均GDP）的增长率也处于较快的水平。 比此前和此后的历史表现的都要好。
The record shows that the period 1950-1973, when government intervention in market economies was at its peacetime height, was uniquely successful economically, with no global recessions and faster rates of GDP growth – and growth of GDP per capita – than in any comparable period before or since.