无需复杂计算就能看出，50年一遇的5年小萧条将会导致经济���力降低10 % ， 这将抑制平均投资回报和私人投资，使每年的经济增长率下降0.2个百分点。
A back-of-the-envelope estimate suggests that a five-year lesser depression every 50 years that pushes the economy an extra 10% below its potential would reduce average investment returns and retard private investment by enough to shave two-tenths of a percentage point from economic growth every year.