標題:

supply curve and marginal cost curve

發問:

'In a competive market, a firm's short run supply curve is equal to its marginal cost curve.' Do you agree? Explain your answer with a diagram.

最佳解答:

A firm can earn money when MR>MC until MR=MC Simple to say, if the market price(MP) is HKD10, I will produce until the MC is HKD10. if the market price(MP) is HKD15, I will produce until the MC is HKD15. There are a positive relationship between price and MC. So if the price is higher, the supplier are more willing to produce more. It is supply curve. 圖片參考:http://hk.yimg.com/i/icon/16/6.gif Reference: http://hk.knowledge.yahoo.com/question/?qid=7006112904366 Basically, the supply curve is the MC curve as well because the supply curve represents the lowest prices acceptable for the producer or firm to produce any particular quantity or an output (made up of infinite points of quantity supplied). And a profit maximising firm will want at least having the price equals MC, which is its lowest acceptable price, so they are the same. But those diagrams will not always show you everything depends on the questions or topics they are attempting to explain.

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