Market failure

Indian Economy glossary

Topic: Markets, Equilibrium and Government Intervention · NCERT: Class 9, Ch 9 "The Price Puzzle: What Drives the Market"

Meaning

Market failure is a situation where a free market, left to itself, does not use society's resources in the most efficient way. It produces too much of some goods and too little of others.

It matters because market failure is the main reason for government intervention, meaning the state regulating markets for fairness, equity and welfare. Each cause of market failure needs its own policy tool.

For externalities, the key formula is: Social cost = Private cost + External cost

Explanation

When does a market work well?

Efficient allocation means resources go where they give society the most total benefit. At that point, no one can be made better off without making someone else worse off.
The equilibrium (the price at which demand equals supply) is efficient only if three conditions hold:
buyers and sellers bear all the costs and benefits of their deal;
there are many sellers;
everyone has full information.
If any one of these conditions breaks, the market fails.

The four standard causes

1. Public goods

A public good is non-rival, so one person's use does not reduce another's (a streetlight lights the road for 1 person or 100). It is also non-excludable, so people who do not pay cannot easily be kept out (national defence protects every citizen).
Why the market gives too little of it:
a firm cannot charge each user, so it makes no direct profit;
with no profit, private firms do not supply it;
so the state provides it and pays through taxes.
The free-rider problem is the root of this. A free rider is someone who enjoys a good without paying, because they cannot be kept out.

2. Externalities

An externality is an effect of a sale or of production on people outside the deal. The market price does not include this effect.
Negative externality (external cost): a factory pollutes and nearby people fall sick. The factory does not pay for this harm, so it over-produces.
Positive externality (external benefit): your vaccination also protects your neighbours. The market under-produces.
If external cost is above zero, the market price is below the true social cost, so the good is over-produced.

3. Market power (monopoly)

A monopoly has a single seller, a good with no close substitutes, and barriers that stop new firms from entering.
How it causes loss:
the monopolist restricts supply, so the price rises above the competitive level;
some buyers who would pay more than the cost of production still do not get the good;
this lost value to society is the deadweight loss.
Weak competition also leads to poor quality and little innovation.

4. Information problems (asymmetric information)

Asymmetric information means one side of a deal, usually the seller, knows more than the other about quality, safety or quantity.
The buyer cannot check quality, so bad-quality goods can push good ones out of the market. This is called adverse selection, or the "market for lemons".

Worked examples

Free rider (Class 9 park example)

A park needs ₹5,000 from each of 100 families. Each family values the park at ₹8,000.
Total benefit = 100 × ₹8,000 = ₹8 lakh. Total cost = 100 × ₹5,000 = ₹5 lakh.
Society would gain ₹3 lakh. But each family thinks, "Others will pay, and I can use it free." So no money is collected and the market builds nothing.
Fix: the local body collects ₹5,000 per family as a tax and builds the park.

Negative externality and the Pigouvian tax (a tax equal to the harm caused)

A plastic bag costs the firm ₹2 to make (private cost). The litter and cleaning harm it causes is ₹1 (external cost).
Social cost = ₹2 + ₹1 = ₹3. The market charges only ₹2, so people use too many bags.
A ₹1 tax:
raises the price to ₹3;
so people buy fewer bags;
so use falls towards the level that is right for society.

Monopoly

Under competition, 1,000 units sell at ₹50. A monopolist cuts output to 700 units and charges ₹70.
Buyers pay ₹20 extra on each of 700 units, so ₹14,000 moves from consumers to the monopolist.
The value lost on the 300 units that are no longer made is the deadweight loss.

In India

Each type of market failure has its own Indian tool or regulator.

Public goods: the state provides roads, bridges, parks, streetlights, policing, sanitation and drainage, and pays for them through taxes.
Externalities (the single-use plastic rules):
MoEFCC notified the Plastic Waste Management Amendment Rules, 2021 on 12 August 2021 [4].
From 1 July 2022, India banned the manufacture, import, stocking, distribution, sale and use of identified single-use plastic items that have low utility and high littering potential. These include plastic straws, cutlery, plates, cups, ear buds with plastic sticks, and thermocol decoration [4].
Plastic carry bags thinner than 75 micron were banned from 30 September 2021, and bags thinner than 120 micron from 31 December 2022 [4].
Other tools include emission standards, pollution control boards, and "sin taxes" on tobacco and alcohol. Sin taxes work like a Pigouvian tax.
Market power: the Competition Commission of India (CCI) enforces the Competition Act, 2002 [2].
Section 3 bans anti-competitive agreements (cartels). Section 4 bans abuse of dominant position. Sections 5–6 control mergers ("combinations") [2].
The maximum penalty is 10% of the average turnover of the last three preceding financial years [2].
CCI fined Google ₹1,337.76 crore in 2022 for abusing its dominant position in the Android mobile-device ecosystem [3].
CCI fined BCCI ₹52.24 crore. BCCI had promised broadcasters that it would not organise a rival domestic T20 league to the IPL for ten years [S2a].
CCI found Coal India Ltd in breach of Section 4(2)(a)(i) for putting unfair or discriminatory conditions in its contracts with power producers [S2b].
Information problems:
Drug approvals and sample testing of medicines, because buyers cannot test whether a medicine works.
Legal Metrology checks, where the state checks weights, measures and the net quantity printed on packaged goods.
The Central Consumer Protection Authority (CCPA) was set up on 24 July 2020 under the Consumer Protection Act, 2019. It acts against unfair trade practices and false or misleading advertisements, and protects consumers "as a class", meaning as a whole group [5].
SEBI was set up as a non-statutory body on 12 April 1988. It became statutory by Ordinance on 21 February 1992, and the SEBI Act replaced the Ordinance on 4 April 1992. Its mandate is "to protect the interests of investors in securities" [6].
Ancient root: Kauṭilya's Arthaśāstra made ghee traders give buyers 1/50 extra (mānasrāva) to make up for the ghee that sticks to the measuring vessel. A buyer who paid for 1 kg got 1.02 kg (1,020 g). This was an early fair-measure rule.

Don't confuse with

Government failure: here state action makes the result worse than the market would, for example through regulatory capture, heavy compliance burden, or a price ceiling that causes shortages. Market failure is the market's fault; government failure is the state's fault.
Merit good: a policy idea, not the technical economic category. Examples are education and vaccination, which the state promotes because people under-value them. A public good must be non-rival and non-excludable.
Club good / Common-pool resource: a club good (cable TV) is non-rival but excludable. A common-pool resource (fish in the sea, groundwater) is non-excludable but rival. Only goods that are both non-rival and non-excludable are pure public goods.
Dominance vs abuse of dominance: being a dominant firm is not illegal. Only abusing dominance is punished under Section 4 of the Competition Act, 2002 [2].

Prelims Hooks

The four standard causes of market failure are public goods, externalities, market power (monopoly) and asymmetric information.
A public good is non-rival and non-excludable. The NCERT Class 7 definition ("present use does not diminish availability for future use") describes durability and is imprecise.
Social cost = Private cost + External cost. With a negative externality, the market over-produces. With a positive externality, it under-produces.
Identified single-use plastic items were banned from 1 July 2022 under the Plastic Waste Management Amendment Rules, 2021, which were notified on 12 August 2021 [4].
Section 4 of the Competition Act, 2002 covers abuse of dominant position. The maximum penalty is 10% of average turnover over the last 3 financial years [2]. CCI fined Google ₹1,337.76 crore (Android) [3].
CCPA was set up on 24 July 2020 under the Consumer Protection Act, 2019 (a common trap: not the 1986 Act). It deals with misleading advertisements and unfair trade practices [5].

Mains Points

One failure, one tool (GS-III):
public goods → state provision paid for by taxes;
externalities → Pigouvian taxes or bans (the plastic rules of 2021–22) [4];
market power → competition law (CCI orders against Google and BCCI) [3] [S2a];
information problems → standards and disclosure (Legal Metrology, drug testing, CCPA) [5].
A ban works when the harm is high and cheap substitutes exist (plastic straws). A tax works when some use is still valuable (fuel).
Market failure vs government failure:
Regulatory capture, heavy compliance burden, low price ceilings (which cause shortages and black markets) and excessive subsidies (which cause over-use of fertiliser) can do more harm than the failure they target.
The test: the state should step in only when the cost of market failure is greater than the likely cost of government failure. Targeted tools (a tax, a disclosure rule) are better than blunt ones (a ban, a price control) where possible.
Independent statutory regulators and Jan Vishwas-style decriminalisation aim to strike this balance.
Digital markets:
Network effects (a service becomes more useful as more people use it) and control of data create lasting dominance, as the Google Android case shows [3].
This drives the debate on ex-ante rules (rules set before harm happens) versus ex-post penalties (action after abuse).
The move to the Consumer Protection Act, 2019 and CCPA is the state's answer to asymmetric information in e-commerce and advertising [5].