theme 2 topic 2 Flashcards
What is aggregate demand ?
The total demand for all goods/services within an economy at any given price over a period of time.
What happens as AD increases ?
Economic growth Increases
What are the 4 main components of AD ?
Consumption (C)
Investment (I)
Government spending (G)
Net exports (X-M)
What is the AD formula ?
AD = C + I + G + (X-M)
What is consumption ?
The total spending on goods/services by consumers within the economy.
What % of consumption makes up AD ?
66%
What does consumption include ?(5) and what do they all affect ?
- Real disposable income - after tax and NI
- Interest rates
- Consumer confidence (prospects and unemployment)
- Asset price (feeling of wealth)
- Level of indebtness
MARGINAL UTILITY
What is marginal propensity to consume ?
The proportion of an increase in income that gets spent on consumption.
What is investment ?
The total spending by firms on capital goods within the economy.
What does investment cause in the long run ?
An increase in the productive capacity of the economy, increasing long run economic growth.
Due to the quantity and quality of factors of production increasing.
What does investment cause in the short run?
It increases AD
What % of investment makes up AD ?
15-20%
What is most investment provided by ?
- The private sector (75%)
- The government
What does investment include ? (6) and what do they all affect ?
- Interest rate (availability and cost of credit)
- Business confidence (expected future profits and demand predictions)
- Corporation tax (retained profit as internal source of finance)
- Capacity utilisation
- Competition (internal and external)
- Capital goods process
MARGINAL PROPENSITY TO INVEST
What is government spending ?
The total amount of money spent by the government within the economy.
What is the majority of the government’s spending spent on?
Pensions
Healthcare
Welfare payments
This changes year on year as governments decide how much they spend
What is not included in the government’s figure ?
Pensions and JSA as money is transferred from one group to another
What % of government spending make up GDP ?
18-20%
What does government spending include ? (4)
- Current spending (public sector education and health including wages)
- Infrastructure spending
- Welfare spending (largest proportion)
- Debt interest payments (50 billion)
What is the net exports equation ?
Exports - imports
X - M
What are net exports ?
The difference between export revenue and the money spent on imported goods/services.
When does a minus figure occur ?
When imports are higher than exports as more money leaves the UK than comes in.
What % of the UK’s large trade deficit makes up AD ?
5%
What does government spending include ? (5) and what do they all affect ?
- Real disposable income rise abroad
- Real disposable income rise domestically
- Exchange rate (SPICE / WIDEC)
- protectionism at home and abroad
- Relative domestic inflation
MARGINAL PROPENSITY TO IMPORT
What is the price level on an AD curve ?
The averages of prices for all goods/services in the economy.
What is real national output ?
The output of the economy, taking into account inflation
What is the AD curve formula ?
Nominal (money) national output / average price level
What is the AD curve formula ?
Nominal (money) national output / average price level
Why is the AD curve downward sloping ? (4)
- Income effect
- Substitution effect
- Real Balance effect
- Interest rate effect
What is the income effect ?
As a rise in prices is not matched straight away by a rise in income,
people have a lower real income so can afford to buy less.
this leads to a CONTRACTION in demand.
What is the substitution effect ?
If prices in the UK rise, less foreigners will want those exports,
and more UK residents will want to buy goods from abroad (imports) as they are cheaper.
this leads to a decrease in net exports, so AD will contract.
What is the real balance effect ?
An increase in prices means that the amount people have saved up will no longer be worth as much,
and so will offer less security.
they will want to save more and reduce their spending, causing a contraction in AD.
What is the interest rate effect ?
A rise in prices means firms will pay workers more,
so there is a higher demand for money.
if supply stays the same, then the ‘price of money’ (interest rates) will increase to reduce this higher demand,
so people will save more and borrow less.
this means businesses will invest less.
AD therefore contracts.
What does a change in price levels lead to (on AD curve) ? and why ?
Movement along the curve.
Due to inflation/deflation.
What does an increase in prices lead to ?
CONTRACTION IN AD
What does a decrease in prices lead to ?
EXPANSION IN AD
Why does a shift along the AD curve occur ?
Occurs if there is a change in any of the components AD
An increase in any components of AD leads to ?
AD to AD 1
A decrease in any components of AD leads to ?
AD to AD2
What does a fall in the amount of consumption cause ?
A reduction in AD
What does LRAS stand for ?
Long run aggregate supply
What is LRAS determined by ?
The state of technology, productivity, factor mobility, and incentives.
What does the LRAS curve present ?
The normal capacity level of output for the economy.
It is assumed to be a vertical line (independent of prices)
What is the impact of an increase in imports ?
If importe increase, consumers and businesses are spending more on foreign goods/services instead of domestically produced ones.
This shift can lead to a decrease in overall demand for domestic output, and
reduces AD.
What is the effect of business investment increasing ?
It increases economic activity.
When firms invest in capital goods, it leads to job creation and higher production capacity,
increasing AD.
What is the impact of household savings decreasing ?
When they reduce their savings, this means they are consuming more,
this increases AD.
What is disposable income ?
The money consumers have left to spend, after taxes have been taken away and state benefits have been added.
What is disposable income affected by ?
Government taxation and wages
What does marginal propensity to consume show ? (MPC)
How much of a consumer’s extra income they spend, and how much they save.
Less than 1(but positive)
MPC formula
MPC = change in consumption / change in income