Causes and Consequences of Market Failure
What is Market Failure?
Market failure occurs when the free market fails to allocate resources efficiently
This leads to a mismatch between what is produced and what society actually needs
Causes of Market Failure
1. Public Goods
Definition
Public goods are goods and services that the private sector does not provide due to a lack of profit motive.
Key Characteristics
Non-excludable: People cannot be prevented from using them
Non-rivalrous: One person’s use does not reduce availability for others
Examples
Street lighting
Road signs
Law and order
Flood control systems
National defence
Lighthouses
Public roads
Why Market Failure Occurs
The free rider problem: people can benefit without paying
Firms cannot make profit, so they do not supply these goods
2. Merit Goods
Definition
Merit goods are goods that provide benefits to society but are under-consumed in a free market.
Key Concept
They create positive externalities (benefits to third parties)
Social benefits exceed private benefits
Examples
Education
Healthcare services
Vaccinations
Research and development
Training schemes
Public libraries
Why Market Failure Occurs
Individuals underestimate the true benefits
As a result, consumption is lower than the socially optimal level
3. Demerit Goods
Definition
Demerit goods are harmful goods that are over-consumed in a free market.
Examples
Cigarettes
Alcohol
Fast food
Why Market Failure Occurs
Consumers ignore long-term negative effects
Leads to overconsumption
4. Monopoly Power
Definition
Occurs when a single firm dominates the market.
Why Market Failure Occurs
Firms can charge higher prices
Reduced competition leads to inefficiency
Less innovation and choice
5. Factor Immobility
Definition
Factors of production (labour and capital) cannot move easily between industries or regions.
Why Market Failure Occurs
Resources are not used efficiently
Leads to unemployment and underproduction
Consequences of Market Failure
1. Misallocation of Resources
Resources are not used where they are most needed
2. Welfare Loss
Society loses potential benefits
Either too much or too little of a good is produced
3. Social Problems
Poor access to healthcare and education
Lower productivity and living standards
4. Inequality
Unequal access to essential goods and services
Wider gap between rich and poor

