If restaurant meals are not inferior goods,then the income effect of a price changeA.will work in the same direction as the substitution effectB.will work in the opposite direction from the substitution effect我选的B .但答案是A.我不明白为

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If restaurant meals are not inferior goods,then the income effect of a price change
A.will work in the same direction as the substitution effect
B.will work in the opposite direction from the substitution effect
我选的B .但答案是A.我不明白为啥是同样方向.是不是我对effect有误解?
宏观经济学。忘改分类了

等我学好了经济就教你哈~