作者yoly (搖哩～)
看板NTU-Exam
標題[問題] 梁明義總體經濟學 97下期末考考古題問題
時間Sun Jun 19 21:59:49 2011
1.(c)(5%)Suppose you earn and spend $2,000 per month. You receive your
paycheck on the first day of the month and must decide how much of
it to hold as cash and how much to deposit in your savings account.
The savings account pays 0.025 interest; however, the bank charges
you $1 for each withdrawal you make during the month. What will be
your average demand for cash over the month? If the interest rate rose
to 0.10, what would be your average demand for cash over the month?
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我算的答案分別是 r=0.025時，average demand for cash over the month= 200
r=0.10 C/2=100
想問一下答案是否正確？
如果錯的話... 麻煩簡單告知一下算法!!
作業錯這題，然後忘了去訂正，所以麻煩大家嚕！！
祝明天考試順利，謝謝！！
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1F：推 naivekasa :沒錯啦~其他題目更難呢,這題最簡單吧 06/20 00:01
2F：推 didiboy170 :推很簡單得一題 結果考試也是這題!! 06/21 13:18