20. Which of the following would unambiguously predict a decrease in desired hours of work?
a.* The substitution effect of a wage decrease
b. The income effect of a wage decrease
c. A wage increase
d. The substitution effect of a decline in income tax rates
unambiguously在这里翻译成什么?答案为什么不选D项呢?



雷达卡



京公网安备 11010802022788号







