4.2.2.3_-_The_determinants_of_aggregate_demand Flashcards
What is aggregate demand?
Aggregate demand is the total demand in the economy. It measures spending on goods and services by consumers, firms, the government and overseas consumers and firms
What is the equation for AD?
C + I + G +(X-M)
What is consumer spending?
This is how much consumers spend on goods and services. This is the largest component of AD and is therefore most significant to economic growth. It makes up just over 60% of GDP
What is real income?
the income of an individual or group after taking into consideration the effects of inflation on purchasing power
What is disposable income?
Disposable income is personal income that remains after direct taxes and government charges have been paid
Consumer income might come from wages, savings, pensions, benefits and investments, such as dividend payments.
Savings are made instead of consumption so income can either be saved or consumed
What is a consumers marginal propensity to consume (mpc)?
How much a consumer changes their spending following a change in income
What is a consumers marginal propensity to save (mps)?
The proportion of each additional pound of household income that is used for saving
A consumer’s marginal propensity to consume added to the marginal propensity to save is equal to 1
What are the main influences on consumer spending
- Interest rates
- Income levels
- Consumer confidence
- Wealth effects
- Taxes
- Level of unemployment
What is capital investment?
Money spent by firms on assets which they will use to produce goods/services e.g. capital machinery, computers and offices. It accounts for around 15% of AD in the UK
What is the difference between savings and investment?
Savings tend to be made by households, whereas investments tend to be made by firms.
What are the main influences on investment made by firms?
- Level of risk
- Government incentives and regulation
- Interest rates and access to credit
- Technical advances
- Business confidence / animal spirits
- Market demand
What is meant by animal spirits in terms of business confidence?
Business confidence depends partly on general optimism or pessimism of the company’s managers.
Not all investment decisions are based purely on reason and rational thinking, human emotion, intuition and ‘gut instinct’ are also important factors. Keynes recognised this and called these factors ‘animal spirts’
What is meant by the accelerator effect?
The accelerator effect suggests that the level of investment in an economy is related to the change in GDP. A higher rate of economic growth causes more investment.
The level of investment is more volatile than the rate of economic growth.
Firms will make an ‘accelerated’ investment in capital goods, expecting to increase output and make profit in the future
When is the accelerator effect likely to occur?
When the economy is going through recovery or at the start of a boom. These are times when demand will be rapidly increasing and firms will need to invest to meet this demand.
What is government spending?
How much the government spends on state goods and services, such as schools and the NHS.
Only money that directly contributes to the output of the economy is included. This means that transfers of money such as benefits or pensions are not included