Regardless of the price of ice cream, Charlie spends $5 a week on ice cream. What can we conclude about Charlie's demand for ice cream?
选项:
A: His income elasticity of demand for ice cream is equal to one.
B: His income elasticity of demand for ice cream is equal to zero.
C: His price elasticity of demand for ice cream is equal to one.
D: His price elasticity of demand for ice cream is equal to zero.
发布时间:2024-04-06 23:51:07