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 shift the supply curve - l blqx.e29ygra/w fj-)pv .k b:+cdlfor wheat to the leftdw7+.(kmbbp y ?
A. An increase in demand for rice
B. An improvement in wheat-harvesting technology
C. An expectation that bread prices will rise in the future
D. A high-yield wheat harvest caused by favourable weather
参考答案: C
本题详细解析:
If bread prices are expectqco219x o)p)xsr : tsqdht8 *wed to rise, firms will hoard grain in anticipation, reducing supply.
Choice A is incorrect, as a change in demand for rice has no impact on the supply of bread.
Choices B and D are incorrect, as improvements in technology and favouh9s8c:orxtsd p2qtow *q)1x)rable weather would both increase supply and cause the supply curve to shift to the right.
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