问题
单项选择题
New legislation setting a price ceiling will most likely cause:（）
A. a market surplus.
B. a market shortage.
C. a decrease in demand.
答案
参考答案：B
解析：
Price ceilings restrict the producer from increasing the selling price. The lower price will stimulate demand by consumers at this lower price. However, since producers will not be able to increase price there is little incentive for them to increase supply. Hence, production and supply will be limited at the price ceiling leading to a market shortage.