Charity cannot improve the average standard of living. Saving and capital accumulation do.
施舍不可能提高平均生活标准，但节俭和资本积累却可以做到。
The consequences of high capital income tax policies are reduced saving, reduced capital accumulation, lower labor productivity, and reduced economic growth.
高资本收入税的后果是降低了储蓄，资本积累，从而降低了劳动生产率和经济增长。
That the interest rate is never constant will influence the consumer's choice on consumption path and therefore change the saving rate, the capital accumulation and growth rate.
不统一固定的利率会影响消费者对消费路径的选择，从而影响储蓄率、资本积累及增长速度。
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