National Income Data

National income is used to assess changes in living standards in a country, and between countries, over time. But it is not a perfect measure.

National income

National income is defined as the total value of goods and services produced in an economy in a given period of time.
It is the same as national output, or GDP.
Higher GDP is often correlated with higher incomes and so a higher standard of living.
We can use national income data over time to see whether people are generally getting richer over time or not.

Limitations of national income data

Although national income data is a good starting point to compare the standards of living in countries, it has its issues.
- Two countries could have the same level of GDP (national income), but the country with a larger population will have a lower ‘average’ GDP per person. So we can improve national income data by looking at GDP per capita (GDP divided by population).

Inflation

Two countries could have the same level of GDP (national income), but their cost of living could be higher in one country.
So, the same income purchases fewer goods and services, and quality of life will be poorer.
Rather than using current GDP, we should use real GDP.
Nominal GDP, is also known as GDP at current prices – it means the GDP data has not been adjusted for inflation.
Real GDP is inflation adjusted. Adjusting for 'Purchasing Power Parity' may help to solve this issue.

Sources of inaccuracy

Some countries, especially developing countries, have poor data collection agencies which means the quality of the GDP data is weak.
The shadow economy is illegal activities that create GDP but are not recorded in the formal economy.
- E.g. the sale of illegal drugs or undeclared 'cash-in-hand' transactions.
Some countries add an estimate for the shadow economy.
Two countries could have same reported real GDP, but one may have a larger shadow economy, so actual income is higher.

Real variations and inequality

National income is an aggregate of the countries entire output. But often there is variation.
- E.g. in the UK, over 25% of GDP is created in London.
Two countries could have the same GDP but the income and wealth could be distributed differently.
E.g. Qatar has a high GDP per capita, but it is not distributed very equally.

National Income Data

There are further reasons why national income data may not be a reliable measure.

Working hours and leisure time

If a country can produce the same amount of goods and services as another, but in a shorter time, that country is said to be more productive.
- So, they will have more leisure time.
Gross Domestic Product (GDP) only measures traded goods and services, but it misses goods and services not sold at market price.
- E.g. going for a run will not show up in GDP, whereas joining a gym will.

Sustainability

GDP measures the total value of goods and services produced but it doesn’t take into account the cost of making that output.
A country could have a high GDP but it could be using up all of its raw materials, minerals in doing so. So it is unsustainable.
Sustainability is defined as “the ability to meet the needs and wants of the current generation, without compromising the ability of future generations to meet their needs and wants”.

Externalities

GDP measures the total value of goods and services produced in an economy. But, it doesn't make a distinction between those goods and services that add to quality of life, and those that do not.
- E.g. if someone sprays graffiti on a subway, and the council pay to clear it up, there has been no net change to anyone’s quality of life, but GDP was created.
- These are "negative expenditures".

Composition of GDP

Two countries could have the same level of GDP, but one could be spending on healthcare and investing in the future of its country with 'capital spending', and the other on smoking and unhealthy food.
The former has prioritised future consumption but the latter has prioritised current consumption.
The quality of life will differ in the short and long term for each country.

National happiness

National income data can not measure national happiness.
Wellbeing is influenced of a number of factors:
- The condition of family relationships.
- Financial security.
- Job security.
- Supportive friends.
- Good health.
Interestingly, there is not automatically a positive correlation between wealth and happiness.
- Happiness is a subjective concept.
- Arguably, people feel happier through comparing their income to others.

1Introduction to Markets

2Market Failure

2.1Market Failure

2.1.1Types of Market Failure

2.1.2Externalities

2.1.3The Deadweight Welfare Loss of Externalities

2.1.4A-A* (AO3/4) - The Externalities of Education

2.1.5Public Goods

2.1.6Information Gaps

2.1.7End of Topic Test - Market Failure

2.1.8Application Questions - Market Failure

2.2Government Intervention

2.2.1Government Intervention in Markets

2.2.2Subsidies & Price Controls

2.2.3Pollution Permits & Regulation

2.2.4A-A* (AO3/4) - European Emissions Trading

2.2.5State Provision & Information Provision

2.2.6Government Failure

2.2.7End of Topic Test - Government Intervention

2.2.8A-A* (AO3/4) - Government Intervention

3The UK Macroeconomy

3.1Measures of Economic Performance

3.1.1Measuring Economic Growth

3.1.2National Income Data

3.1.3Inflation

3.1.4Causes of Inflation

3.1.5Consequences of Inflation

3.1.6Employment & Unemployment

3.1.7Causes & Impact of Unemployment

3.1.8A-A* (AO3/4) - Hysteresis

3.1.9Balance of Payments

3.1.10Current Account Deficit & Imbalances

3.1.11End of Topic Test - Economic Performance

3.1.12Application Questions Macroeconomy

3.2Aggregate Demand

3.2.1Aggregate Demand

3.2.2Consumption

3.2.3Investment

3.2.4Government Expenditure

3.2.5Net Trade

3.2.6End of Topic Test - Aggregated Demand

3.2.7Application Questions - AD

3.3Aggregate Supply

3.3.1Aggregate Supply

3.3.2End of Topic Test - Aggregated Supply

3.3.3A-A* (AO3/4) -Aggregate Supply

3.4National Income

3.4.1National Income

3.4.2Injections & Withdrawals

3.4.3Equilibrium Level of Real National Output

3.4.4Multiplier Effect

3.4.5End of Topic Test - National Income

3.4.6Application Questions - National Income

3.5Economic Growth

3.5.1Causes of Economic Growth

3.5.2Output Gaps

3.5.3Business Cycle

3.5.4Impact of Economic Growth

3.5.5End of Topic Test - Economic Growth

3.5.6A-A* (AO3/4) - Growth

4The UK Economy - Policies

4.1Macroeconomic Objectives & Policies

4.1.1Possible Objectives

4.1.2Demand-Side Policies - Monetary

4.1.3Demand-Side Policies - Monetary 2

4.1.4A-A* (AO3/4) - The Future of Interest Rates

4.1.5Demand-Side Policies - Fiscal

4.1.6Demand-Side Policies in 2007-08

4.1.7Strengths & Weaknesses of Demand Side

4.1.8Supply-Side Policies

4.1.9Supply-Side Policies 2

4.1.10Conflicts Between Objectives

4.1.11A-A* (AO3/4) - Conflicting Incentives

4.1.12Phillips Curve

4.1.13End of Topic Topic - Policies & Objectives

4.1.14Application Questions - UK Policies

5Business Behaviour

5.1Business Growth

5.1.1Size & Types of Firms

5.1.2Business Growth

5.1.3Pros & Cons of External Expansion

5.1.4Demergers

5.1.5End of Topic Test - Business Growth

5.1.6A-A* (AO3/4) - Business Growth

5.2Business Objectives

5.2.1Business Objectives

5.2.2End of Topic Test - Business Objectives

5.2.3Application Questions - Business Objectives

5.3Revenues, Costs & Profits

5.3.1Revenue

5.3.2Costs

5.3.3Economies & Diseconomies of Scale

5.3.4Profits

5.3.5Profits 2

5.3.6End of Topic Test - Revenue, Costs & Profits

5.3.7A-A* (AO3/4) - Revenue, Costs & Profit

6Market Structures

6.1Market Structures

6.1.1Efficiency

6.1.2Perfect Competition

6.1.3Perfect Competition 2

6.1.4Monopolistic Competition

6.1.5Oligopolies

6.1.6The Prisoner's Dilemma

6.1.7Collusion in Oligopolistic Markets

6.1.8A-A* (AO3/4) - Which Factors Affect Collusion?

6.1.9Monopolies

6.1.10Price Discrimination

6.1.11Monopsony

6.1.12A-A* (AO3/4) - Models in Economics

6.1.13Contestability

6.1.14Benefits of Contestability

6.1.15End of Topic Test - Market Structures

6.1.16Application Questions - Market Structures

6.1.17A-A* (AO3/4) - Cereal Collusion

6.2Labour Market

6.2.1Demand for Labour

6.2.2Supply of Labour

6.2.3Labour Market Imperfections

6.2.4A-A* (AO3/4) - Labour Productivity & Unemployment

6.2.5A-A* (AO3/4) - What Level of Unionisation is Good?

6.2.6Wage Determination

6.2.7Elasticity of Labour Supply & Demand

6.2.8Intervention in Setting Wages

6.2.9End of Topic Test - Labour Market

6.2.10A-A* (AO3/4) - Labour Markets

6.3Government Intervention

6.3.1Reasons for Government Intervention

6.3.2Government Promotion of Competition

6.3.3Usefulness of Competition Policy & Examples

6.3.4A-A* (AO3/4) - Modern Competition Policy

6.3.5Privatisation

6.3.6Government Regulation

6.3.7A-A* (AO3/4) - Nationalisation vs Privatisation

6.3.8Government Protection of Suppliers and Employees

6.3.9Impact of Government Intervention

6.3.10End of Topic Test - Government Intervention

6.3.11Application Questions - Government Intervention

7A Global Perspective

8Finance & Inequality

8.1Poverty & Inequality

8.1.1Absolute & Relative Poverty

8.1.2Inequality

8.1.3Inequality 2

8.1.4Lorenz Curve

8.1.5Government Policy on Poverty

8.1.6End of Topic Test - Poverty & Inequality

8.1.7A-A* (AO3/4) - Inequality & Poverty

8.2Emerging & Developing Economies

8.2.1Measures of Development

8.2.2Factors Influencing Growth & Development

8.2.3Barriers to Development

8.2.4Barriers to Development 2

8.2.5A-A* (AO3/4) - The Bottom Billion

8.2.6Development Strategies

8.2.7Interventionist Strategies

8.2.8Aid

8.2.9International Institutions

8.2.10International Institutions 2

8.2.11End of Topic Test - Emerging & Developing

8.2.12Application Questions - Developing Countries

8.3The Financial Sector

8.3.1Role of Financial Markets

8.3.2Market Failure in the Financial Sector

8.3.3Role of Central Banks

8.3.4End of Topic Test - The Financial Sector

8.3.5A-A* (AO3/4) - Financial Sector

8.4Role of the State in the Macroeconomy

8.4.1Public Expenditure

8.4.2Taxation

8.4.3Public Sector Finances

8.4.4End of Topic Test - Role of the State

8.4.5Application Questions - Role of the State

9Examples of Global Policy

9.1International Policies

9.1.1Global Debt & Deficit Policies

9.1.2Poverty & Inequality Policies

9.1.3Changes in Interest Rates

9.1.4Competitiveness Policies

9.1.5End of Topic Test - International Policies

9.1.6A-A* (AO3/4) - International Policies

9.2Policy Responses to Shocks

9.2.1International Tax Policies

9.2.2Problems for Policymakers

9.2.3End of Topic Test - Policy Responses

9.2.4Application Questions - Policy Responses

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