本题目来源于试卷: IB Economics Unit 2.1: Microeconomics - Demand & Supply, Equilibrium，类别为 IB经济学
[单选题]
Which of the following would most likely cause the shift in the demand for apple juice from $D_1$ to $D_2$ in the diagram above?
A. A fall in the price of apples
B. A rise in the price of orange juice
C. A fall in incomes
D. A rise in popularity of alternatives to apple juice
参考答案: B
本题详细解析:
A rise in the price of orange juice wou:im+fla. d09 y9ue zgcld decrease the quantity demanded of orange juice. As the overall demand for juice does not change, this causes an increase in demand for applezd+yfi9mlae0 u.c :9 g juice, as apple juice and orange juice are substitutes.
Choice A is wrong because apples are an input in the production of apple juice, so a rise in the price of apples would shift the supply curve, not the demand curve.
Choices C and D are wrong because both a fall in incomes and the emergence of new, more popular, alternatives would shift the demand curve for apple juice leftward.
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