Market Power and Elasticity of Demand
Market power is the ability to raise price above marginal cost and earn a positive profit. The degree to which a firm can raise price above marginal cost depends on the shape of the demand curve at the profit maximizing output. That is, elasticity is the critical factor in determining market power. The relationship between market power and the price elasticity of demand (PED) can be summarized by the equation:
- P/MC = PED/(1 + PED)
Note that PED will be negative, so the ratio is always greater than one. The higher the P/MC ratio, the more market power the firm possesses. As PED increases in magnitude, the P/MC ratio approaches one, and market power approaches zero. The equation is derived from the monopolist pricing rule:
- (P - MC)/P = -1/PED
Read more about this topic: Market Power
Famous quotes containing the words market, power, elasticity and/or demand:
“But the nomads were the terror of all those whom the soil or the advantages of the market had induced to build towns. Agriculture therefore was a religious injunction, because of the perils of the state from nomadism.”
—Ralph Waldo Emerson (1803–1882)
“Do thou, then breathe those thoughts into my mind
By which such virtue may in me be bred
That in thy holy footsteps I may tread:
The fetters of my tongue do thou unbind,
That I may have the power to sing of thee
And sound thy praises everlastingly”
—Michelangelo Buonarroti (1474–1564)
“A submissive spirit might be patient, a strong understanding would supply resolution, but here was something more; here was that elasticity of mind, that disposition to be comforted, that power of turning readily from evil to good, and of finding employment which carried her out of herself, which was from Nature alone. It was the choicest gift of heaven.”
—Jane Austen (1775–1817)
“Most of the ladies and gentlemen who mourn the passing of the nation’s leaders wouldn’t know a leader if they saw one. If they had the bad luck to come across a leader, they would find out that he might demand something from them, and this impertinence would put an abrupt and indignant end to their wish for his return.”
—Lewis H. Lapham (b. 1935)