1.請畫圖說明政府對競爭市場(competitive market)的消費品課稅後，均衡數量與價格的變動，並畫出政府稅收及無謂損失的區域。(15分)

2. Given sorting problem µ convex hull，which one of the following statements can be derived ?(Choose one) (1) The Lower Bound of convex hull is W(n log n). (2) The Lower Bound of convex hull is W(n). (3) The Lower Bound of Sorting is W(n log n). (4) The Lower Bound of Sorting is W(n). Please explain how to find the lower bound by problem transformation. (20%)