费。 a.跨时期最优化是否意味着家庭A应该比家庭B多作投资? b.在存在信贷配给的情况下,(a)的答案将会有什么变化? Households A and B have exactly the same productive resources,and they face the same interest rate.The only difference between them is that household A has a stronger preference for future consumption than household B. a.Would intertemporal optimization imply that household A should invest more than household B? b.How would your answer to(a)change in the presence of credit rationing?