问题
单项选择题
Which of the following statements about the elasticity of demand is least accurate（）
A. The most important determinant of price elasticity of demand is the availability of substitutes.
B. Prices are more elastic in the long run than in the short run.
C. When demand is inelastic, an increase in price will cause a decrease in the total expenditure on a good.
答案
参考答案：C
解析：
If demand is inelastic, the age change in quantity demanded is smaller than the age change in price; quantity demanded is relatively unresponsive to price changes. A price increase increases total expenditures on a good.