本题目来源于试卷: IB Economics Unit 2.3: Microeconomics - Elasticities，类别为 IB经济学
[单选题]
| | Gizmos | Whats its | Widgets | | Firm A weekly production | 80 | 70 | 50 | Income elasticity of demand(YED)
| 1.2 | 0.6 | -0.4 |
Assume consumers' incomes fall, and the chief operating officer of Firm A recommends reallocating production inputs to reflect changes in demand. Which of the following recommended reallocations would lead to the greatest increase in sales for Firm A?
A. produce 100 gizmos, 80 whatsits, and 20 widgets
B. produce 150 gizmos, 50 whatsits, and 0 widgets
C. produce 40 gizmos, 100 whatsits, and 60 widgets
D. produce 45 gizmos, 55 whatsits, and 90 widgets
参考答案: D
本题详细解析:
Applying the YED values of the goods to the formula for YEDsqivdk gew ) + 1.0a+/b:vreeq shows that a decrease in income decreases demand for goods with positive YED values and increases demand for goods with negative YED values.
Choice D is correct: demand for widgets increases, but demand for gizmos and whatsits decreases. To reflect changes in demand, Firm A should produce more widgets and fewer gizmos and whatsits.
Choices A, B, and C are incorrect: the demand for gizmos and whatsits has decreased, so Firm A should not produce moeb0+sq v:)dk wage 1q.i ev/+rre of these products.
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