所屬科目:研究所、轉學考(插大)-經濟學
假設一封閉經濟體系,\( C=400+0.8Y \)、\( I=400-100i \)、\( G=200 \),實質貨幣需求 \( L=800+0.4Y-100i \),名目貨幣供給 \( M=2900 \),\( Y \) 為所得,\( i \) 為利率。請問當價格水準 \( P \) 維持在 \( 2 \) 時,商品市場與貨幣市場均衡的利率及所得水準為何?(10%)
(1) What is his first period consumption? (10%)
(2) Suppose the utility function was quadratic instead. Would $c_1$ be higher or lower in this case? (5%)
(1) Find $c1$ and $c2$ assuming his second period utility is $\ln(c_2)$. (10%)Assume now that his second period utility is: $u(c2) = \begin{cases} \ln(c2), & \text{if } c2 \geq c1 \\ \ln(c2) - 1, & \text{if } c2 < c_1 \end{cases}$.
(2) Find out the optimal value of first period consumption as a function of $\rho$. (15%)
1. 請利用經濟學理論,繪圖標示並輔以文字詳細加以說明。(20%)
2. 請問如何解決「劣幣驅逐良幣」的問題?請繪圖標示並輔以文字詳細加以說明。(10%)
三、依據主計處統計顯示,房屋租金持續上漲,2024 年房租指數年增率 2.45%,寫下近 28 年來新高。請問您認為政府是否應針對房租價格進行管制?請繪圖標示並輔以文字詳細加以說明您的論點。(20%)