Ralph consumes apples (A) and bananas (B). His Marshallian demand for bananas is 10.5 p0.2 6p7 B* = (a) Find and interpret the income elasticity of demand for bananas (еÂ,1) and interpret the value. Are bananas an inferior or normal good? (b) Find the own price elasticity of demand for bananas (еB,PB) and interpret the value. Does the own price elasticity of demand for bananas depend on the value of PB? (c) Find the cross price elasticity of demand for bananas (eBPA) and interpret the value. Are bananas and apples gross substitutes or gross complements?

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