Forms+of+Market+Structure

There are two extreme forms of market structure: Monopoly  and, its opposite, Perfect or Pure  Competition. الاحتكار و سوق المنافسة التامه

. **__Economists assume__** that 1- there are a number of __**different** buyers__ and __sellers__ in the __marketplace__. This means that we have competition in the [|market] , which. 2- Furthermore, for almost every product there are substitutes, so if one product becomes too expensive, a buyer can choose a cheaper substitute instead.
 * Perfect competition ** (sometimes called // pure competition // ) describes markets such that no participants are large enough to have the [|market power] __ to set the price of a homogeneous product __

In a market with many buyers and sellers, both the consumer and the supplier have equal ability to influence price. In some industries, there are no substitutes and there is no competition. In a market that has only one or few suppliers of a good or service, the producer(s) can control price, meaning that a consumer does not have choice, cannot maximize his or her total utility and has have very little influence over the price of goods.


 *  Forms of Market Structure **

In economics, market structure (also known as the number of firms producing identical products.)
 * **Perfect competition: ** is a theoretical market structure that features unlimited contest ability (or no barriers to entry), an unlimited number of producers and consumers, and a perfectly elastic demand curve.
 * **<span style="color: #3cbbaf; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 110%;">Monopolistic competition: **<span style="color: #264d3c; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 110%;"> also called competitive market, where there are a large number of firms, each having a small proportion of the market share and slightly differentiated products.
 * <span style="background-color: #ffffff; color: #0e2233; font-family: 'Open Sans',arial,sans-serif; font-size: 14px; vertical-align: baseline;">**<span style="color: #3cbbaf; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 110%;">Oligopoly: **<span style="color: #264d3c; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 110%;"> in which a market is dominated by a small number of firms that together control the majority of the market share.
 * <span style="background-color: #ffffff; color: #0e2233; font-family: 'Open Sans',arial,sans-serif; font-size: 14px; vertical-align: baseline;">**<span style="color: #3cbbaf; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 110%;">Monopoly: **<span style="color: #264d3c; font-family: 'Trebuchet MS',Helvetica,sans-serif; font-size: 110%;"> where there is only one provider of a product or service.