Posted by Anjali Kaur on Oct 10, 2020

Perfect Competition

Perfect competition is 1 of the form of the market. There are 2 types of market:

  1. Perfectly competitive market or Perfect Competition or Perfect Market.
  2. Imperfect competition.

In this post, we will learn about perfect competition in an easy way. Let’s learn.

A quick note: Subscribe to our website to get answers to your curriculum questions. 

What is Market?

Market means a place where the buyers and sellers of a commodity, they come in contact with each other to perform a transaction related to the purchase and sale of a commodity.

Perfect Competition

Perfect competition is a type of market situation in which buyers and sellers operate freely and a commodity is sold at a constant or uniform price.

In this type of market, there are large number of buyers and sellers.

All firms in this type of market produces homogeneous (same) and undifferentiated goods.

Each buyer and seller in this type of market is “PRICE TAKER”.

Features of Perfect Competition

1. There are a very large number of buyers and sellers

Under perfect competition, there is a large number of buyers, each demanding a small part of the total market supply of the product.

As a result, no single buyers are in a position to influence the market price determined by the forces of the market demand and market supply.

2. All the firms are selling a homogeneous product

In this market, all the firms produce and supply identical products.

It means that the products of all the firms are perfect substitutes for each other.

What Are Examples of Homogeneous Products?

As a result, the price elasticity of demand for the firm product is infinite.

3. There is free entry and exit of the firm

In a perfectly competitive market, there are no restrictions on the entry of the new firm into the market or even on the exit of existing firms from the market.

4. Both buyers and sellers have perfect knowledge about the product

In this market, the firms and the buyers possess perfect information about the market.

It implies that no buyer is ignorant about the price prevailing in the market.

5. Perfect mobility exists

There are no restrictions on the movement of goods and there is no transportation cost involved.

In perfect competition, the factors of production are completely mobile leading factor price equalisation throughout the market.

Demand & Revenue Curves Under Perfect Competition

Demand/ Average Revenue/ Marginal Revenue/ Price

Perfect competition have perfectly elastic demand curve.

Under this market form, homongeneous goods are produced. So, price always remains constant which makes the demand curve perfectly elastic.

Also, Price = AR, so it means AR curve also remain constant. MR is also same, as there are no changes in prices.

Demand Curve = AR = Price = MR. As shown below:

TR curve under Perfect Competition

Under perfect competition, as the prices are fixed by the industries, the TR curve is upward sloping. As shown below:

AmosWEB is Economics: Encyclonomic WEB*pedia

Equilibrium Under Perfect Competition

Under perfect competition, the industry is the price maker and the firm is the price taker.

Since in this market form homogeneous goods are produced. So, industries cannot charge different prices from different firms.

The industry will decide the price for the firms. Firms will accept that price, where industry reaches an equilibrium point, that is, the demand curve is equal to the supply curve.

Under perfect competition, "Industry is the price-maker and firm is the  price-taker". Explain.or How is seller (firm) under perfect competition a  price-taker?or Why is a firm under perfect competition a price-taker and

In the given diagram, price, revenue measures on the Y-axis, and the units of a commodity are measured on X-axis.

Industry reaches equilibrium at point E, and the final price decided is 6. Firms will charge price 6, irrespective of the quantity sold.

Thank You!

You can read the related concepts:

  1. The price elasticity of supply
  2. The supply curve
  3. What is production function?
  4. Terms related to production concept
  5. Law of diminishing returns to a factor
  6. Total cost, Total variable cost and Total fixed cost
  7. The relation between TC, TVC and TFC
  8. Average total cost
  9. The demand curve

Feel free to join our Facebook group and subscribe to this website to get daily educational content in your mailbox.

Happy Learning!


Disclosure: Some of the links on the website are adds, meaning at no additional cost to you, I will earn a commission if you click through or make a purchase. Please support so that I can continue writing great content for you.

Photo by pardani ardan on Unsplash

Learn with Anjali started because there wasn't an easy-to-consume resource to help students with their studies. Anjali is on single-minded mission to make you successful!

If you would like to suggest topics, leave feedback or share your story, please leave a message.

Leave a message