Class 11 Micro Economics Notes · CBSE

Meaning of Market & Market Structure

Meaning of Market and Market Structure — understanding the economic meaning of a market, its essential constituents, and the basis for classifying market structures. CBSE Class 11 Microeconomics notes with the classification chart.

Last updated: 15 Sep 2026

Notes

Meaning of Market

There are two aspects of every market: demand and supply. Both concepts were discussed in the previous units. In this chapter, the two components are put together to examine the behaviour of 'Market' as a whole.

Market is like the nervous system of modern economic life. Producers and consumers carry out their transactions of sale and purchase through the medium of market.

In the layman's language, market refers to a place where goods are purchased and sold. But in economics, the term 'market' has a wider meaning.

In economics, market has no reference to a specific place. It is not necessary for buyers and sellers to assemble at a particular place for sale or purchase of goods. The only condition is that they should be in contact with each other through any means of communication, like internet, telephones, letters, etc.

Market

Market refers to the whole region where buyers and sellers of a commodity are in contact with each other to effect purchase and sale of the commodity.

Real-life anchor: you can buy a phone from a seller in Mumbai while sitting at your desk in Delhi — through OLX, Amazon, or a simple phone call. No physical market square is involved. The entire region of contact, not a place, is the market.

Essential Constituents of a Market

From the above discussion, the essential constituents of a market can be summarized as:

Area

Market is not related to any particular place. It spreads over an area. The area becomes the point of contact between buyers and sellers.

The market for a phone is not one shop — it is the whole country (or world) where buyers and sellers can reach each other online.

Buyers and Sellers

Buyers and sellers should be in contact with each other. However, contact does not necessarily mean physical presence.

A student in Jaipur buys a second-hand cycle from a seller in Kota through OLX — contact happens over the internet, no physical meeting needed.

Commodity

For the existence of market, there must be a commodity which will be sold and purchased among buyers and sellers.

There is no market for a "ghost" — a market exists only when there is something concrete (goods or services) to trade.

Competition ⭐

The existence of competition among buyers and sellers is also an essential condition for the existence of a market, otherwise different prices may be charged for the same commodity.

Because two stationery shops near your school compete, both sell the same pen at nearly the same price — competition keeps prices in line.

Market Structure — Meaning and Determinants

Market Structure

Market structure refers to the number and type of firms operating in the industry.

Economists have used different ways to classify the markets in order to study the nature of different kinds of markets and problems faced by each of them. The main factors, which determine the market structure, are:

Number of buyers and sellers of a commodity in the market indicates the influence exercised by them on the price of the commodity. In case of a large number of buyers and sellers, an individual buyer or seller is not in the position to influence the price of the commodity. However, if there is a single seller of a commodity, then such a seller exercises great control over the price.

No single wheat farmer can change the price of wheat in the mandi, but the single seller of a life-saving rare medicine can charge almost any price.

If the commodity is of homogeneous nature, i.e. identical in all respects, then it is sold at a uniform price. However, if the commodity is of differentiated nature (like different brands of toothpaste), then it may be sold at different prices. Again, if the commodity has no close substitutes (like Railways), then the seller can charge a higher price from the buyers.

All brands of cooking salt look and taste nearly identical, so salt sells at a uniform price — but Colgate, Pepsodent and Babool sell at three different prices.

If there is freedom of entry and exit of firms, then the price will be stable in the market. However, if there are restrictions on the entry of new firms and the exit of old firms, then a firm can influence the price as it has no fear of competition from other or new firms.

Anyone can open a new tuition centre (free entry keeps fees competitive), but no one can build a second railway network — so Indian Railways can fix its own fares.

If buyers and sellers have perfect knowledge about the market conditions, then a uniform price prevails in the market. However, in the case of imperfect knowledge, sellers are in a position to charge different prices.

When every buyer knows that the same phone costs ₹15,000 at every shop, no shop dares to charge ₹17,000 — perfect knowledge means uniform price.

When the factors of production can move freely from one place to another, then a uniform price prevails in the market. However, in the case of immobility of goods and factors, different prices may prevail in the market.

If labour cannot move from a town with surplus workers to a town with shortages, wages stay different in the two towns.

Forms of Market Structure

On the basis of the main factors which determine the market structure, the main forms of market structure are: Perfect Competition, and Imperfect Competition (Monopoly, Monopolistic Competition, Oligopoly).

FORMS OF MARKET STRUCTURE

Perfect Competition

Imperfect Competition

Monopoly

Monopolistic Competition

Oligopoly

Syllabus note: In accordance with the syllabus prescribed by CBSE for Class XI, the main text of this chapter deals with Perfect Competition. The imperfect forms — Monopoly, Monopolistic Competition and Oligopoly — are covered as separate topics of this chapter.

Key Takeaways

In economics, a market is the whole region where buyers and sellers of a commodity are in contact with each other — not a physical place; contact may be through internet, telephone, letters, etc. ⭐
The four essential constituents of a market are: area, buyers and sellers, commodity, and competition. ⭐
Market structure refers to the number and type of firms operating in the industry. ⭐
The five determinants of market structure are: number of buyers and sellers, nature of the commodity, freedom of movement of firms, knowledge of market conditions, and mobility of goods and factors of production. ⭐
The main forms are perfect competition and imperfect competition — the latter includes monopoly, monopolistic competition and oligopoly. ⭐
As per the CBSE Class 11 syllabus, the main text of this chapter deals with perfect competition; the imperfect forms (monopoly, monopolistic competition, oligopoly) are covered as separate topics of this chapter.