| 翻訳と辞書 |
| kinked demand ： ウィキペディア英語版 |
kinked demand
The Kinked-Demand curve theory is an economic theory regarding oligopoly and monopolistic competition. When it was created, the idea fundamentally challenged classical economic tenets such as efficient markets and rapidly changing prices, ideas that underlie basic supply and demand models. Kinked demand was an initial attempt to explain sticky prices.
== Theory==
"Kinked" demand curves and traditional demand curves are similar in that they are both downward-sloping. They are distinguished by a hypothesized concave bend with a discontinuity at the bend - the "kink." Therefore, the first derivative at that point is undefined and leads to a jump discontinuity in the marginal revenue curve.
Classical economic theory assumes that a profit-maximizing producer with some market power (either due to oligopoly or monopolistic competition) will set marginal costs equal to marginal revenue. This idea can be envisioned graphically by the intersection of an upward-sloping marginal cost curve and a downward-sloping marginal revenue curve (because the more one sells, the lower the price must be, so the less a producer earns per unit). In classical theory, any change in the marginal cost structure (how much it costs to make each additional unit) or the marginal revenue structure (how much people will pay for each additional unit) will be immediately reflected in a new price and/or quantity sold of the item. This result does not occur if a "kink" exists. Because of this jump discontinuity in the marginal revenue curve, marginal costs could change without necessarily changing the price or quantity.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「kinked demand」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|