关于economic一道题~Income elasticity of demand All foods 0.10 Beef 0.26 Margarine -0.22 Fresh potatoes -0.43 Fruit juices 0.95 Bread -0.18 Price elasticity of demand Beef -1.24 Bread -0.25 Fresh potatoes -0.14 Fruit juices -0.65 Margarine -0.37
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