asked in 社會與文化語言 · 9 years ago

有關經濟 monopoly

在monopoly的狀態下

marginal revenue 跟 marginal revenue in most market

有什麼差別

2 Answers

Rating
  • Jessie
    Lv 6
    9 years ago
    Best Answer

    Marginal revenue and price - In a perfectly competitive market marginal revenue equals price. In a monopolistic market marginal revenue is less than price.

    http://en.wikipedia.org/wiki/Monopoly

    垄断者的利润最大化问题由于垄断者是其所生产产品的唯一卖者,因此,直接面对整个市场,换句话说,他将面对向下倾斜的市场需求。而买者人数众多,因此是竞争性的,也就是说,买者是价格接受者。因此,卖者可以通过控制产品价格,或者产量来最大化自己的利润。假设以TR(Q),TC(Q)来表示垄断者的总收益和总成本函数,π(Q)表示当生产Q个单位该产品时垄断者的利润水平。由此,垄断者的利润最大化问题为maxQπ(Q) = TR(Q) - TC(Q)。则当Qm > 0为垄断者利润最大化产出的必要(但非充分)条件是,

    圖片參考:http://upload.wikimedia.org/math/5/3/b/53bf99ef0e8...

    。这里,MR(Qm)和MC(Qm)分别称为边际收益和边际成本。上述必要条件也可以解释为,垄断者总是在使得边际收入等于边际成本的情况下决定产量。但是必须注意,如果垄断者的固定成本相当高,很可能导致其的利润最大化生产量为Qm = 0。因此必须把通过必要条件求出的Qm代入利润函数π(Qm)确认利润大于等于零,若利润为负,则产量必然为Qm = 0。

    http://zh.wikipedia.org/zh/%E5%9E%84%E6%96%AD

    More formally, marginal revenue is equal to the change in total revenue over the change in quantity when the change in quantity is equal to one unit. This can also be represented as a derivative when the units of output are arbitrarily small. (Total revenue) = (Price that can be charged consistent with selling a given quantity) times (Quantity) or

    圖片參考:http://upload.wikimedia.org/math/f/e/a/feac78638a0...

    ), so marginal revenue is less than price. This means that the profit-maximizing quantity, for which marginal revenue is equal to marginal cost (MC) will be lower for a monopoly than for a competitive firm, while the profit-maximizing price will be higher. When demand is elastic, marginal revenue is positive, and when demand is inelastic, marginal revenue is negative. When the price elasticity of demand is equal to 1, marginal revenue is equal to zero.

    http://en.wikipedia.org/wiki/Marginal_revenue

  • 9 years ago

    您看得懂自己的題目嗎?

Still have questions? Get your answers by asking now.