Source: https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-6-the-prisoners-dilemma

[Revision notes](https://senecalearning.com/en-gb/revision-notes.md) › [A Level](https://senecalearning.com/en-gb/revision-notes/a-level.md) › [Economics](https://senecalearning.com/en-gb/revision-notes/a-level/economics.md) › [Edexcel](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel.md) › The Prisoner's Dilemma

# The Prisoner's Dilemma

Economics: Edexcel A A Level, topic 6.1.6

## The Prisoner's Dilemma

The Prisoner’s Dilemma is a scenario where the benefits from cooperating are larger than the benefits of pursuing self-interest.

### Game Theory

![Game Theory](https://image-v2.cdn.app.senecalearning.com/courseImages/physics/1.4.2%20Equilibrium/math-1500720_640-min.jpg)

- The Prisoner’s Dilemma is a type of game theory. 
- This is a branch of mathematics where one analyses situations in which players must make decisions and then either benefit or lose out from the decisions of other players.

### The Prisoner’s Dilemma

![The Prisoner’s Dilemma](https://image-v2.cdn.app.senecalearning.com/2018-08/00e108cf-5c15-446b-9da3-7f8ea8d0596b/handcuffs-hand-prisoner.jpg)

- This is the scenario:
 - Two criminals are arrested. When they are taken to the police station, they refuse to say anything and are put in separate interrogation rooms.

### Prisoner A

![Prisoner A](https://image-v2.cdn.app.senecalearning.com/2018-09/08465379-3d62-4512-bc23-e4c8a069934d/jail-cells-429638_1920.jpg)

- Eventually, a police officer enters the room where Prisoner A is being held and says: “You know what? Your partner in the other room is confessing. Your partner is going to get a light prison sentence of just one year, and because you’re remaining silent, the judge is going to stick you with eight years in prison. If you confess, too, we’ll cut your jail time down to five years, and your partner will get five years, also.”

### Prisoner B

![Prisoner B](https://image-v2.cdn.app.senecalearning.com/2018-08/e33fc859-4254-41e0-85b1-21e97e8b95fb/prison-guard-prisoner.jpg)

- Over in the next room, another police officer is giving exactly the same speech to Prisoner B.
- What the police officers do not say is that if both prisoners remain silent, the evidence against them is not especially strong, and the prisoners will end up with only two years in jail each.

### Why is this a dilemma?

![Why is this a dilemma?](https://image-v2.cdn.app.senecalearning.com/2018-08/a92adff8-a499-4275-a717-ae73919f4866/prisoner-prison-jail.jpg)

-  If the two prisoners had both stayed silent, they would serve a total of four years in jail time between them. 
- The prisoners would be better off if they cooperate with each other and neither confesses.
- If they pursue their own self-interest, they could receive longer jail terms.

### Diagram of the prisoner's dilemma

![Diagram of the prisoner's dilemma](https://image-v2.cdn.app.senecalearning.com/2018-09/92f6d888-4bc2-40ce-8873-e78e64451658/Prisoner-Dilemma.png)

## Oligopolies and the Prisoner's Dilemma

We can use the prisoner’s dilemma to understand the behaviour of oligopolies.

### The Oligopoly version of the prisoner’s dilemma

![The Oligopoly version of the prisoner’s dilemma](https://image-v2.cdn.app.senecalearning.com/courseImages/chemistry/3.1.3%20Yield%20and%20atom%20economy/business-3021398_1280-min%20-%20Edited.jpg)

- If oligopolists cooperate in reducing output, then everyone can maintain high profits.
- If an oligopolist is pursuing its own self interest, however, then they would increase its output and then earn even more profits.

### Diagram of an Oligopoly version of the prisoner’s dilemma

![Diagram of an Oligopoly version of the prisoner’s dilemma](https://image-v2.cdn.app.senecalearning.com/2018-09/475f6303-f9e8-4e3b-bf7e-cbb5381293a4/Oligopoly-Dilemma.png)

### Firm A being cheated by Firm B

![Firm A being cheated by Firm B](https://image-v2.cdn.app.senecalearning.com/2018-03/3520b3e2-ae42-4fea-95d6-098fe9b42a0a/shutterstock_156197999.jpg)

- If A thinks B will cheat and increase their output, then A will also increase their output. 
 - This means that both firms receive £400 in profits. 
 - This is better than the profit of £200, which will happen if A doesn’t change their output levels.
 - But this is lower than the £1,000 which A would have if B stuck to their agreement.

### Firm A cheating Firm B

![Firm A cheating Firm B](https://image-v2.cdn.app.senecalearning.com/courseImages/chemistry/10.4.2%20NPK%20fertilisers/profits-1953616_640-min.jpg)

- On the other hand, A could believe that B will stick to their agreement.
- If so, they will want to take advantage of this and raise their own output.
 - This means that they will receive £1,500 in profits.
 - Their competitor, B, will only have £200 in profits.

### Evaluation

![Evaluation](https://image-v2.cdn.app.senecalearning.com/2018-07/6c2f094a-8948-45e4-b847-6545bc638fed/Betrayel-Trust-Broken-Paper.jpg)

- Overall, it is in the best interest of Firm A and Firm B to both cooperate.
- Ultimately, however, they need to trust each other.

## Test yourself on The Prisoner's Dilemma

- How long will a prisoner's jail term be if no-one confesses?
- Why would oligopolists want to reduce output?
- What does the Prisoner's Dilemma suggest about cheating?

[Practise this topic for free](https://app.senecalearning.com/classroom/course/d903555c-0201-4e4b-b4f4-8a5ad1345c9e/section/1d779db5-6a40-4b14-9b69-825d504ce8b3/session)

- Previous topic: [6.1.5 Oligopolies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-5-oligopolies.md)
- Next topic: [6.1.7 Collusion in Oligopolistic Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-7-collusion-in-oligopolistic-markets.md)

## Economics: Edexcel A A Level contents

### 1 Introduction to Markets
- 1.1 Nature of Economics
  - [1.1.1 Economics as a Social Science](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-1-economics-as-a-social-science.md)
  - [1.1.2 Positive & Normative Economic Statements](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-2-positive-and-normative-economic-statements.md)
  - [1.1.3 The Economic Problem](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-3-the-economic-problem.md)
  - [1.1.4 Resources](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-4-resources.md)
  - [1.1.5 Production Possibility Frontiers](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-5-production-possibility-frontiers.md)
  - [1.1.6 Specialisation & Division of Labour](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-6-specialisation-and-division-of-labour.md)
  - [1.1.7 Types of Economies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-7-types-of-economies.md)
  - [1.1.8 End of Topic Test - Nature of Economics](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-8-end-of-topic-test-nature-of-economics.md)
  - [1.1.9 Application Questions - Nature of Economics](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-1-9-application-questions-nature-of-economics.md)
- 1.2 How Markets Work
  - [1.2.1 Rational Decision Making](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-1-rational-decision-making.md)
  - [1.2.2 Demand](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-2-demand.md)
  - [1.2.3 Elasticities of Demand](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-3-elasticities-of-demand.md)
  - [1.2.4 Elasticities of Demand 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-4-elasticities-of-demand-2.md)
  - [1.2.5 Elasticity & Revenue](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-5-elasticity-and-revenue.md)
  - [1.2.6 Supply](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-6-supply.md)
  - [1.2.7 Elasticity of Supply](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-7-elasticity-of-supply.md)
  - [1.2.8 Price Determination](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-8-price-determination.md)
  - [1.2.9 Price Mechanism](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-9-price-mechanism.md)
  - [1.2.10 Consumer & Producer Surplus](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-10-consumer-and-producer-surplus.md)
  - [1.2.11 Indirect Taxes & Subsidies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-11-indirect-taxes-and-subsidies.md)
  - [1.2.12 A-A* (AO3/4) - Taxing Prices or Quantities?](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-12-a-a-ao34-taxing-prices-or-quantities.md)
  - [1.2.13 Alternative View of Consumer Behaviour](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-13-alternative-view-of-consumer-behaviour.md)
  - [1.2.14 End of Topic Test - Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-14-end-of-topic-test-markets.md)
  - [1.2.15 A-A* (AO3/4) - Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/1-2-15-a-a-ao34-markets.md)

### 2 Market Failure
- 2.1 Market Failure
  - [2.1.1 Types of Market Failure](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-1-types-of-market-failure.md)
  - [2.1.2 Externalities](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-2-externalities.md)
  - [2.1.3 The Deadweight Welfare Loss of Externalities](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-3-the-deadweight-welfare-loss-of-externalities.md)
  - [2.1.4 A-A* (AO3/4) - The Externalities of Education](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-4-a-a-ao34-the-externalities-of-education.md)
  - [2.1.5 Public Goods](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-5-public-goods.md)
  - [2.1.6 Information Gaps](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-6-information-gaps.md)
  - [2.1.7 End of Topic Test - Market Failure](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-7-end-of-topic-test-market-failure.md)
  - [2.1.8 Application Questions - Market Failure](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-1-8-application-questions-market-failure.md)
- 2.2 Government Intervention
  - [2.2.1 Government Intervention in Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-1-government-intervention-in-markets.md)
  - [2.2.2 Subsidies & Price Controls](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-2-subsidies-and-price-controls.md)
  - [2.2.3 Pollution Permits & Regulation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-3-pollution-permits-and-regulation.md)
  - [2.2.4 A-A* (AO3/4) - European Emissions Trading](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-4-a-a-ao34-european-emissions-trading.md)
  - [2.2.5 State Provision & Information Provision](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-5-state-provision-and-information-provision.md)
  - [2.2.6 Government Failure](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-6-government-failure.md)
  - [2.2.7 End of Topic Test - Government Intervention](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-7-end-of-topic-test-government-intervention.md)
  - [2.2.8 A-A* (AO3/4) - Government Intervention](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/2-2-8-a-a-ao34-government-intervention.md)

### 3 The UK Macroeconomy
- 3.1 Measures of Economic Performance
  - [3.1.1 Measuring Economic Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-1-measuring-economic-growth.md)
  - [3.1.2 National Income Data](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-2-national-income-data.md)
  - [3.1.3 Inflation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-3-inflation.md)
  - [3.1.4 Causes of Inflation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-4-causes-of-inflation.md)
  - [3.1.5 Consequences of Inflation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-5-consequences-of-inflation.md)
  - [3.1.6 Employment & Unemployment](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-6-employment-and-unemployment.md)
  - [3.1.7 Causes & Impact of Unemployment](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-7-causes-and-impact-of-unemployment.md)
  - [3.1.8 A-A* (AO3/4) - Hysteresis](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-8-a-a-ao34-hysteresis.md)
  - [3.1.9 Balance of Payments](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-9-balance-of-payments.md)
  - [3.1.10 Current Account Deficit & Imbalances](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-10-current-account-deficit-and-imbalances.md)
  - [3.1.11 End of Topic Test - Economic Performance](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-11-end-of-topic-test-economic-performance.md)
  - [3.1.12 Application Questions Macroeconomy](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-1-12-application-questions-macroeconomy.md)
- 3.2 Aggregate Demand
  - [3.2.1 Aggregate Demand](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-1-aggregate-demand.md)
  - [3.2.2 Consumption](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-2-consumption.md)
  - [3.2.3 Investment](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-3-investment.md)
  - [3.2.4 Government Expenditure](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-4-government-expenditure.md)
  - [3.2.5 Net Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-5-net-trade.md)
  - [3.2.6 End of Topic Test - Aggregated Demand](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-6-end-of-topic-test-aggregated-demand.md)
  - [3.2.7 Application Questions - AD](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-2-7-application-questions-ad.md)
- 3.3 Aggregate Supply
  - [3.3.1 Aggregate Supply](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-3-1-aggregate-supply.md)
  - [3.3.2 End of Topic Test - Aggregated Supply](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-3-2-end-of-topic-test-aggregated-supply.md)
  - [3.3.3 A-A* (AO3/4) -Aggregate Supply](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-3-3-a-a-ao34-aggregate-supply.md)
- 3.4 National Income
  - [3.4.1 National Income](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-4-1-national-income.md)
  - [3.4.2 Injections & Withdrawals](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-4-2-injections-and-withdrawals.md)
  - [3.4.3 Equilibrium Level of Real National Output](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-4-3-equilibrium-level-of-real-national-output.md)
  - [3.4.4 Multiplier Effect](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-4-4-multiplier-effect.md)
  - [3.4.5 End of Topic Test - National Income](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-4-5-end-of-topic-test-national-income.md)
  - [3.4.6 Application Questions - National Income](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-4-6-application-questions-national-income.md)
- 3.5 Economic Growth
  - [3.5.1 Causes of Economic Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-5-1-causes-of-economic-growth.md)
  - [3.5.2 Output Gaps](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-5-2-output-gaps.md)
  - [3.5.3 Business Cycle](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-5-3-business-cycle.md)
  - [3.5.4 Impact of Economic Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-5-4-impact-of-economic-growth.md)
  - [3.5.5 End of Topic Test - Economic Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-5-5-end-of-topic-test-economic-growth.md)
  - [3.5.6 A-A* (AO3/4) - Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/3-5-6-a-a-ao34-growth.md)

### 4 The UK Economy - Policies
- 4.1 Macroeconomic Objectives & Policies
  - [4.1.1 Possible Objectives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-1-possible-objectives.md)
  - [4.1.2 Demand-Side Policies - Monetary](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-2-demand-side-policies-monetary.md)
  - [4.1.3 Demand-Side Policies - Monetary 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-3-demand-side-policies-monetary-2.md)
  - [4.1.4 A-A* (AO3/4) - The Future of Interest Rates](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-4-a-a-ao34-the-future-of-interest-rates.md)
  - [4.1.5 Demand-Side Policies - Fiscal](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-5-demand-side-policies-fiscal.md)
  - [4.1.6 Demand-Side Policies in 2007-08](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-6-demand-side-policies-in-2007-08.md)
  - [4.1.7 Strengths & Weaknesses of Demand Side](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-7-strengths-and-weaknesses-of-demand-side.md)
  - [4.1.8 Supply-Side Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-8-supply-side-policies.md)
  - [4.1.9 Supply-Side Policies 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-9-supply-side-policies-2.md)
  - [4.1.10 Conflicts Between Objectives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-10-conflicts-between-objectives.md)
  - [4.1.11 A-A* (AO3/4) - Conflicting Incentives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-11-a-a-ao34-conflicting-incentives.md)
  - [4.1.12 Phillips Curve](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-12-phillips-curve.md)
  - [4.1.13 End of Topic Topic - Policies & Objectives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-13-end-of-topic-topic-policies-and-objectives.md)
  - [4.1.14 Application Questions - UK Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/4-1-14-application-questions-uk-policies.md)

### 5 Business Behaviour
- 5.1 Business Growth
  - [5.1.1 Size & Types of Firms](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-1-1-size-and-types-of-firms.md)
  - [5.1.2 Business Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-1-2-business-growth.md)
  - [5.1.3 Pros & Cons of External Expansion](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-1-3-pros-and-cons-of-external-expansion.md)
  - [5.1.4 Demergers](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-1-4-demergers.md)
  - [5.1.5 End of Topic Test - Business Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-1-5-end-of-topic-test-business-growth.md)
  - [5.1.6 A-A* (AO3/4) - Business Growth](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-1-6-a-a-ao34-business-growth.md)
- 5.2 Business Objectives
  - [5.2.1 Business Objectives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-2-1-business-objectives.md)
  - [5.2.2 End of Topic Test - Business Objectives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-2-2-end-of-topic-test-business-objectives.md)
  - [5.2.3 Application Questions - Business Objectives](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-2-3-application-questions-business-objectives.md)
- 5.3 Revenues, Costs & Profits
  - [5.3.1 Revenue](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-1-revenue.md)
  - [5.3.2 Costs](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-2-costs.md)
  - [5.3.3 Economies & Diseconomies of Scale](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-3-economies-and-diseconomies-of-scale.md)
  - [5.3.4 Profits](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-4-profits.md)
  - [5.3.5 Profits 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-5-profits-2.md)
  - [5.3.6 End of Topic Test - Revenue, Costs & Profits](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-6-end-of-topic-test-revenue-costs-and-profits.md)
  - [5.3.7 A-A* (AO3/4) - Revenue, Costs & Profit](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/5-3-7-a-a-ao34-revenue-costs-and-profit.md)

### 6 Market Structures
- 6.1 Market Structures
  - [6.1.1 Efficiency](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-1-efficiency.md)
  - [6.1.2 Perfect Competition](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-2-perfect-competition.md)
  - [6.1.3 Perfect Competition 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-3-perfect-competition-2.md)
  - [6.1.4 Monopolistic Competition](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-4-monopolistic-competition.md)
  - [6.1.5 Oligopolies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-5-oligopolies.md)
  - [6.1.6 The Prisoner's Dilemma](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-6-the-prisoners-dilemma.md)
  - [6.1.7 Collusion in Oligopolistic Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-7-collusion-in-oligopolistic-markets.md)
  - [6.1.8 A-A* (AO3/4) - Which Factors Affect Collusion?](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-8-a-a-ao34-which-factors-affect-collusion.md)
  - [6.1.9 Monopolies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-9-monopolies.md)
  - [6.1.10 Price Discrimination](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-10-price-discrimination.md)
  - [6.1.11 Monopsony](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-11-monopsony.md)
  - [6.1.12 A-A* (AO3/4) - Models in Economics](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-12-a-a-ao34-models-in-economics.md)
  - [6.1.13 Contestability](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-13-contestability.md)
  - [6.1.14 Benefits of Contestability](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-14-benefits-of-contestability.md)
  - [6.1.15 End of Topic Test - Market Structures](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-15-end-of-topic-test-market-structures.md)
  - [6.1.16 Application Questions - Market Structures](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-16-application-questions-market-structures.md)
  - [6.1.17 A-A* (AO3/4) - Cereal Collusion](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-1-17-a-a-ao34-cereal-collusion.md)
- 6.2 Labour Market
  - [6.2.1 Demand for Labour](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-1-demand-for-labour.md)
  - [6.2.2 Supply of Labour](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-2-supply-of-labour.md)
  - [6.2.3 Labour Market Imperfections](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-3-labour-market-imperfections.md)
  - [6.2.4 A-A* (AO3/4) - Labour Productivity & Unemployment](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-4-a-a-ao34-labour-productivity-and-unemployment.md)
  - [6.2.5 A-A* (AO3/4) - What Level of Unionisation is Good?](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-5-a-a-ao34-what-level-of-unionisation-is-good.md)
  - [6.2.6 Wage Determination](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-6-wage-determination.md)
  - [6.2.7 Elasticity of Labour Supply & Demand](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-7-elasticity-of-labour-supply-and-demand.md)
  - [6.2.8 Intervention in Setting Wages](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-8-intervention-in-setting-wages.md)
  - [6.2.9 End of Topic Test - Labour Market](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-9-end-of-topic-test-labour-market.md)
  - [6.2.10 A-A* (AO3/4) - Labour Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-2-10-a-a-ao34-labour-markets.md)
- 6.3 Government Intervention
  - [6.3.1 Reasons for Government Intervention](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-1-reasons-for-government-intervention.md)
  - [6.3.2 Government Promotion of Competition](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-2-government-promotion-of-competition.md)
  - [6.3.3 Usefulness of Competition Policy & Examples](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-3-usefulness-of-competition-policy-and-examples.md)
  - [6.3.4 A-A* (AO3/4) - Modern Competition Policy](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-4-a-a-ao34-modern-competition-policy.md)
  - [6.3.5 Privatisation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-5-privatisation.md)
  - [6.3.6 Government Regulation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-6-government-regulation.md)
  - [6.3.7 A-A* (AO3/4) - Nationalisation vs Privatisation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-7-a-a-ao34-nationalisation-vs-privatisation.md)
  - [6.3.8 Government Protection of Suppliers and Employees](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-8-government-protection-of-suppliers-and-employees.md)
  - [6.3.9 Impact of Government Intervention](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-9-impact-of-government-intervention.md)
  - [6.3.10 End of Topic Test - Government Intervention](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-10-end-of-topic-test-government-intervention.md)
  - [6.3.11 Application Questions - Government Intervention](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/6-3-11-application-questions-government-intervention.md)

### 7 A Global Perspective
- 7.1 International Economics - Globalisation & Trade
  - [7.1.1 Globalisation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-1-globalisation.md)
  - [7.1.2 Globalisation for LEDCs](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-2-globalisation-for-ledcs.md)
  - [7.1.3 Globalisation for MEDCs](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-3-globalisation-for-medcs.md)
  - [7.1.4 Specialisation & Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-4-specialisation-and-trade.md)
  - [7.1.5 Pattern of Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-5-pattern-of-trade.md)
  - [7.1.6 Terms of Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-6-terms-of-trade.md)
  - [7.1.7 Trading Blocs](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-7-trading-blocs.md)
  - [7.1.8 UK, EU & WTO](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-8-uk-eu-and-wto.md)
  - [7.1.9 End of Topic Test - Globalisation & Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-9-end-of-topic-test-globalisation-and-trade.md)
  - [7.1.10 A-A* (AO3/4) - Globalisation & Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-1-10-a-a-ao34-globalisation-and-trade.md)
- 7.2 International Economics - Currency
  - [7.2.1 Merged Currency](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-1-merged-currency.md)
  - [7.2.2 Restrictions on Free Trade](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-2-restrictions-on-free-trade.md)
  - [7.2.3 Arguments for Protectionism](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-3-arguments-for-protectionism.md)
  - [7.2.4 Arguments Against Protectionism](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-4-arguments-against-protectionism.md)
  - [7.2.5 Balance of Payments](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-5-balance-of-payments.md)
  - [7.2.6 Balance of Payments 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-6-balance-of-payments-2.md)
  - [7.2.7 Floating Exchange Rates](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-7-floating-exchange-rates.md)
  - [7.2.8 Fixed Exchange Rate](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-8-fixed-exchange-rate.md)
  - [7.2.9 International Competitiveness](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-9-international-competitiveness.md)
  - [7.2.10 End of Topic Test - International Economy](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-10-end-of-topic-test-international-economy.md)
  - [7.2.11 Application Questions - International Economics](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/7-2-11-application-questions-international-economics.md)

### 8 Finance & Inequality
- 8.1 Poverty & Inequality
  - [8.1.1 Absolute & Relative Poverty](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-1-absolute-and-relative-poverty.md)
  - [8.1.2 Inequality](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-2-inequality.md)
  - [8.1.3 Inequality 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-3-inequality-2.md)
  - [8.1.4 Lorenz Curve](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-4-lorenz-curve.md)
  - [8.1.5 Government Policy on Poverty](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-5-government-policy-on-poverty.md)
  - [8.1.6 End of Topic Test - Poverty & Inequality](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-6-end-of-topic-test-poverty-and-inequality.md)
  - [8.1.7 A-A* (AO3/4) - Inequality & Poverty](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-1-7-a-a-ao34-inequality-and-poverty.md)
- 8.2 Emerging & Developing Economies
  - [8.2.1 Measures of Development](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-1-measures-of-development.md)
  - [8.2.2 Factors Influencing Growth & Development](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-2-factors-influencing-growth-and-development.md)
  - [8.2.3 Barriers to Development](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-3-barriers-to-development.md)
  - [8.2.4 Barriers to Development 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-4-barriers-to-development-2.md)
  - [8.2.5 A-A* (AO3/4) - The Bottom Billion](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-5-a-a-ao34-the-bottom-billion.md)
  - [8.2.6 Development Strategies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-6-development-strategies.md)
  - [8.2.7 Interventionist Strategies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-7-interventionist-strategies.md)
  - [8.2.8 Aid](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-8-aid.md)
  - [8.2.9 International Institutions](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-9-international-institutions.md)
  - [8.2.10 International Institutions 2](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-10-international-institutions-2.md)
  - [8.2.11 End of Topic Test - Emerging & Developing](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-11-end-of-topic-test-emerging-and-developing.md)
  - [8.2.12 Application Questions - Developing Countries](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-2-12-application-questions-developing-countries.md)
- 8.3 The Financial Sector
  - [8.3.1 Role of Financial Markets](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-3-1-role-of-financial-markets.md)
  - [8.3.2 Market Failure in the Financial Sector](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-3-2-market-failure-in-the-financial-sector.md)
  - [8.3.3 Role of Central Banks](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-3-3-role-of-central-banks.md)
  - [8.3.4 End of Topic Test - The Financial Sector](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-3-4-end-of-topic-test-the-financial-sector.md)
  - [8.3.5 A-A* (AO3/4) - Financial Sector](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-3-5-a-a-ao34-financial-sector.md)
- 8.4 Role of the State in the Macroeconomy
  - [8.4.1 Public Expenditure](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-4-1-public-expenditure.md)
  - [8.4.2 Taxation](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-4-2-taxation.md)
  - [8.4.3 Public Sector Finances](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-4-3-public-sector-finances.md)
  - [8.4.4 End of Topic Test - Role of the State](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-4-4-end-of-topic-test-role-of-the-state.md)
  - [8.4.5 Application Questions - Role of the State](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/8-4-5-application-questions-role-of-the-state.md)

### 9 Examples of Global Policy
- 9.1 International Policies
  - [9.1.1 Global Debt & Deficit Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-1-1-global-debt-and-deficit-policies.md)
  - [9.1.2 Poverty & Inequality Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-1-2-poverty-and-inequality-policies.md)
  - [9.1.3 Changes in Interest Rates](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-1-3-changes-in-interest-rates.md)
  - [9.1.4 Competitiveness Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-1-4-competitiveness-policies.md)
  - [9.1.5 End of Topic Test - International Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-1-5-end-of-topic-test-international-policies.md)
  - [9.1.6 A-A* (AO3/4) - International Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-1-6-a-a-ao34-international-policies.md)
- 9.2 Policy Responses to Shocks
  - [9.2.1 International Tax Policies](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-2-1-international-tax-policies.md)
  - [9.2.2 Problems for Policymakers](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-2-2-problems-for-policymakers.md)
  - [9.2.3 End of Topic Test - Policy Responses](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-2-3-end-of-topic-test-policy-responses.md)
  - [9.2.4 Application Questions - Policy Responses](https://senecalearning.com/en-gb/revision-notes/a-level/economics/edexcel/9-2-4-application-questions-policy-responses.md)