Demand Curve Shift—Consumer Surplus? - 經濟

Suppose televisions are a normal good and buyers of televisions experience a d
ecrease in income. As a result, consumer surplus in the television market

a. decreases
b. is unchanged
c. increase
d. may increase, decrease, or remain unchanged

ANS: d

消費者的收入減少，不就會使需求減少嗎？需求曲線往內移動後，產生的新的交易價格和
新的需求曲線圍出來的面積不是會比原本來的小？為什麼答案不是a啊？


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