Costs included in the determination of a company’s economic profit that are most likely to be included in that company’s accounting costs are:（）

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.

单项选择题Assume that for the average consumer, the quantity demanded for jeans increases from 5 to 7 pairs per year in response to a price decrease from $ 29 to $ 24 per pair. The price elasticity and relative elasticity of demand for jeans is best described by which of the following Price elasticity of demand Relative elasticity （） ①A. -1.77 Relatively inelastic ②B. -2.32 Relatively elastic ③C. -1.77 Relatively elastic

A. ①
B. ②
C. ③