[考試] 經濟問題兩問

[Justlan (wish you luck)]

1.when the actual rate of unemployment is equal to the natural rate of
  employment then the
(a) anticipated level of inflation must be zero
(b) long turn aggregate supply curve is upward sloping
(c) short-run aggregate supply curve is vertical
(d) economy is operating at its long-run capacity output level.

我覺得答案是a b 皆對
可是解答是D
請問答案以及解釋^^
2.a fall in the standard of living occurs when
(a) nominal income falls
(b) the purchasing power of money falls
(c) the CPI rises
(d) average prices do not rise by enough to offset the fall in nominal income.

我覺得d的敘述有問題!!

生活水準降低,當

D 平均物價沒有上升足夠來抵銷名目收入的下跌?

我看不懂這個選項的英文QQ

麻煩了各位:p

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推 mystage:我也寫到這兩題覺得奇怪
→ mystage:第一題的b因為是垂直  所以並非正斜率
→ mystage:其他的就要勞煩其他高手解釋了
→ Justlan:垂直?WHY
推 whitewater:民眾有理性預期 導致LAS為垂直線
→ whitewater:至於A 應該是預期通膨不一定是0 正確來
→ whitewater:說 應該說正好處在分析最初的起點 剛好
→ whitewater:穩定而已 請指教
→ Justlan:D的答案我看不太懂意思!WHY是對的?
→ whitewater:小弟我也不懂