Class 11 Micro Economics Notes · CBSE

Meaning of Profit & Producer's Equilibrium

Meaning of Profit & Producer's Equilibrium — understanding profit, equilibrium and the two approaches to its determination. CBSE Class 11 Microeconomics notes with the profit example and the two price situations.

Last updated: 15 Sep 2026

Notes

The Producer's Goal

In the second chapter, ‘Consumer’s Equilibrium’, we discussed that a consumer is at equilibrium when he/she derives maximum satisfaction. Like a consumer, a producer also aims to maximise his/her satisfaction — but a producer’s satisfaction is maximised in terms of profit. This chapter deals with the determination of the level of output which yields the maximum profit.

In order to clearly understand the concept of producer's equilibrium, it is necessary to understand the meaning of profit.

Meaning of Profit

Profit

Profit refers to the excess of receipts from the sale of goods over the expenditure incurred on producing them.

The amount received from the sale of goods is known as revenue.

The expenditure on production of such goods is termed as cost.

Profit

Profit = Revenue − Cost

The difference between revenue and cost is known as profit.

Example: If a firm sells goods for 10 crores after incurring an expenditure of 7 crores, then profit will be 3 crores.

Relatable version — the samosa stall

A samosa stall sells ₹10,000 worth of samosas in a day and spends ₹7,000 on dough, oil, potatoes and the helper's wages. Profit = ₹10,000 − ₹7,000 = ₹3,000. Same numbers, same logic — revenue minus cost is profit, whether the firm is a roadside stall or a crore-run company.

Equilibrium and Producer's Equilibrium

Equilibrium

Equilibrium refers to a state of rest when no change is required.

A firm (producer) is said to be in equilibrium when it has no inclination to expand or to contract its output. This state either reflects maximum profits or minimum losses.

Producer's Equilibrium

Producer's Equilibrium refers to that price and output combination which brings maximum profit to the producer and profit declines as more is produced. ⭐

Think about it — a state of rest

You are “in equilibrium” with your ₹299 mobile plan when switching to a costlier or a cheaper plan would leave you worse off — you see no reason to change. A producer is in equilibrium the same way: producing more would cut profit, producing less would leave profit on the table, so the firm stays put at the best output.

The Two Approaches

There are two methods for determination of Producer's Equilibrium:

1. Total Revenue and Total Cost Approach (TR-TC Approach)

2. Marginal Revenue and Marginal Cost Approach (MR-MC Approach)

Marginal Revenue and Marginal Cost Approach (MR-MC Approach)

Determines producer's equilibrium by comparing Marginal Revenue with Marginal Cost.

The Two Situations

A producer can attain the equilibrium level under two different situations.

The Two Situations of Producer's Equilibrium
Aspect	When Price remains Constant (Perfect Competition)	When Price Falls with rise in output (Imperfect Competition)
Market structure	Perfect Competition	Imperfect Competition
Price determination	A firm has to accept the same price as determined by the industry	A firm follows its own pricing policy
Sales condition	Any quantity of the commodity can be sold at that particular price	Sales can be increased only by reducing the price

Price constant — a wheat farmer

A wheat farmer in the mandi accepts the market price for wheat and can sell any quantity at that price. He cannot charge more — the market sets the rate.

Price falls — your favourite café

A café selling shakes can sell more only by cutting the price — the ₹150 mango shake sells at ₹130 if it wants extra customers. Its price falls as output rises.

Key Takeaways

Profit is the excess of receipts from the sale of goods over the expenditure incurred: Profit = Revenue − Cost. ⭐
Producer's Equilibrium refers to that price and output combination which brings maximum profit to the producer, and profit declines as more is produced. ⭐
A firm is in equilibrium when it has no inclination to expand or to contract its output — the state reflects maximum profits or minimum losses.
There are two methods of determination: the TR-TC approach and the MR-MC approach — the syllabus covers only the MR-MC approach.
A producer can attain equilibrium in two situations: when price remains constant (perfect competition) and when price falls with a rise in output (imperfect competition).