The only price which doesn’t lead to price changes is p*, the equilibrium price in which the quantity supplied equalsthe quantity demanded.
唯一不带来变动的价格就是p*，即能够使需求数量等于供给数量的均衡价格。
Price elasticity of supply is a measure of the responsiveness of changes in quantity supplied to changes in price.
供给价格弹性随着时间而增加，因为时间越长，发生产量调整的可能性越大。
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