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Because monopolistically competitive firms have an optimal production allocation at monopoly values: marginal revenue = marginal cost, marking-up to the demand function. When competition is not perfect, marginal revenue does not equal demand but is always below it on a Cartesian plane, so the optimal production value of a monopolistically competitive firm is both less and at a higher price than a perfectly competitive one.
No it does not. Only Perfectly Competitive firms have a horizontal Marginal Cost curve, which is also there demand curve.
perfectly competitive industry become a monopoly, what changes
A perfectly competitive firm would set its prices at a perfectly competitive price.
in a perfectly competitive industry
Because monopolistically competitive firms have an optimal production allocation at monopoly values: marginal revenue = marginal cost, marking-up to the demand function. When competition is not perfect, marginal revenue does not equal demand but is always below it on a Cartesian plane, so the optimal production value of a monopolistically competitive firm is both less and at a higher price than a perfectly competitive one.
No it does not. Only Perfectly Competitive firms have a horizontal Marginal Cost curve, which is also there demand curve.
Perfectly competitive, because both firms will compete to earn a greater market share (they are "price takers"), leading to prices that more closely resemble a perfectly competitive market than a monopolistic market (one dominant "price making" firm).
excessive information
perfectly competitive industry become a monopoly, what changes
perfectly competitive industry become a monopoly, what changes
A perfectly competitive firm would set its prices at a perfectly competitive price.
I think that no medical practise can be tagged as a perfectly competitive market. In issues of health, we do not have perfect information about the best alternatives to consume (different surgeons), and that is one of the key requirements of perfect competition. Moreover, due to the reduced number of surgeons, they are able to control prices, being nearer to a framework of monopolistic competition.
Perfectly competitive firms would not advertise as advertising would serve no purpose. A market that is perfectly competitive exists only in theory.
in a perfectly competitive industry
Three conditions characterize a monopolistic & Perfectly competitive market. First, the market has many firms, none of which is large. Second, there is free entry and exit into the market; there are no barriers to entry or exit. Third, each firm in the market produces a differentiated product. This last condition is what distinguishes monopolistic competition from perfect competition. In perfect competition in addition to the prior two characteristics the firms produces similar products.
None