Case Study Of Monopoly

Introduction

In economics, a monopoly is defined as a persistent market situation where there is only one provider of a product or service. Monopolies are characterized by a lack of economic competition for the good or service that they provide and a lack of viable substitute goods.

Monopoly should be distinguished from monopsony, in which there is only one buyer of the product or service; it should also, strictly, be distinguished from the (similar) phenomenon of a cartel. In a monopoly a single firm is the sole provider of a product or service; in a cartel a centralized institution is set up to partially coordinate the actions of several independent providers (which is a form of oligopoly).

PRICE SETTING FOR UNREGULATED MONOPOLIES

Economists

With an increase of the price, the price elasticity tends to rise, and in the optimum mentioned above it will be above one for most customers. A formula gives the relation between price, marginal cost of production and demand elasticity which maximizes a monopoly profit:Â (known as Lerner index). The monopolist's monopoly power is given by the vertical distance between the point where the marginal cost curve (MC) intersects with the marginal revenue curve (MR) and the demand curve. The longer the vertical distance, (the more inelastic the demand curve) the bigger the monopoly power, and thus larger

In general, if the CR4 measure is less than about 40 (indicating that the four largest firms own less than 40% of the market), then the industry is considered to be very competitive, with a number of other firms competing, but none owning a very large chunk of the market. On the other extreme, if the CR1 measure is more than about 90, that one firm that controls more than 90% of the market is effectively a monopoly.As in this case there are no other railway industry so here market share of Indian railway industry is 100% and so its became an example of monopoly.

Herfindahl-Hirschman Index (HHI)

The Herfindahl-Hirschman Index provides a more complete picture of industry concentration than does the concentration ratio. The HHI uses the market shares of all the firms in the industry, and these market shares are squared in the calculation to place more weight on the larger firms. If there are n firms in the industry, the HHI can be expressed as:

HHI = s12 + s22 + s32 + ... ... + sn2 where si is the market share of the ith firm.

Unlike the concentration ratio, the HHI will change if there is a shift in market share among the larger