Microeconomics 6th Edition by Robert Hall, Shirley Kuiper, Marc Lieberman

تمرين 13

Some studies suggest that "tooth extraction" is an inferior good. Which measure of elasticity (price elasticity of demand,price elasticity of supply,income elasticity,or cross-price elasticity)would provide evidence to support this claim? What would we look for in this elasticity measure to determine if tooth extraction were inferior?