price-cost margin是什么price-cost margin这在微观经济学里到底是什么啊,有人说是MP边际收益,但是和英语是价格成本啊,到底是边际成本还是什么

Term price-cost margin Definition:The difference between price (p) and marginal cost (mc) as a fraction of price,that is [p-mc]/p.The price-cost margin is usually taken as anindicator of market power ...