<P> Below are some examples of the cross-price elasticity of demand (XED) for various goods: </P> <Table> <Tr> <Th> Good </Th> <Th> Good with Price Change </Th> <Th> XED </Th> </Tr> <Tr> <Td> Butter </Td> <Td> Margarine </Td> <Td> + 0.81 </Td> </Tr> <Tr> <Td> Beef </Td> <Td> Pork </Td> <Td> + 0.28 </Td> </Tr> <Tr> <Td> Entertainment </Td> <Td> Food </Td> <Td> - 0.72 </Td> </Tr> </Table> <Tr> <Th> Good </Th> <Th> Good with Price Change </Th> <Th> XED </Th> </Tr> <Tr> <Td> Butter </Td> <Td> Margarine </Td> <Td> + 0.81 </Td> </Tr>

Related to the price elasticity of demand the definition of the market implies