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Increase total revenue and exceeds elasticity of demand

When a firm along with market power raises the price of a good a little, total revenue as: (w) falls in the inelastic range of the demand curve. (x) rises over the elastic range of the demand curve. (y) stays close to zero in the unitary-elastic range of the demand curve. (z) falls when the elasticity of demand exceeds 1.0.

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