aggregate demand Flashcards
definition of AD
Total expenditure on a country’s goods and services measuring the total spending taking place in the economy
Equation for aggregate demand
AD= C+I+G+(X-M)
Describe what happens when the price levels decrease
When the price levels decrease there is an increased / extension in aggregate demand therefore an increase in Real G D P
What causes a change in aggregate demand
If consumption, investment, government spending, net exports increase or decrease
Why is the aggregate demand curve downward sloping
Changing purely to do with reasons to do with price level
How can the downward sloping half be explained by
The wealth effect, the trade effect, the interest effect
Explain the wealth effect
If price levels decrease the purchasing power of income increases
People are richer meaning they’re more likely to spend their money on goods and services
increasing consumption
Consumption is purely increasing because price levels are changed therefore there will be an extension / contraction of aggregate demand
And the real gdp will increase or decrease
Explain the trade effect
If price levels decrease exports become more competitive and imports become less competitive
If exports become more competitive there is greater demand for exports therefore revenues generated from exports increase which increases exports
Therefore there will be less spending on imports reducing the value of M
As a result purely because of the change in the price level the value of X - M will increase and therefore increase aggregate demand and real GDP
The interest rate effect
Impacting consumption investment and net exports
If the price levels decreased interest rates can be kept lower in the economy as most central banks will adapt interest rates to meet the inflation target
If inflation is low the interest rates can be kept lower in the economy
If interest rates are lower that’s higher consumption and higher investments as the cost in borrowing is lower
Decreasing interest rates will reduce the value of exchange rates boosting exports performance
Interest rate links purely to result in changing price level
What factors cause a shift in the aggregate demand curve
For changes in components of aggregate demand consumption investment government or net exports not price
What’s a budget deficit and a budget surplus
Budget deficit means suspending of the government is greater than the taxation revenues in a year / fiscal year
Budget surplus is when the government spending is less than the taxation revenue in a fiscal year
Definition of consumption
Consumption is a total spending by households on goods and services in the economy
What’s the marginal prospensity to consume
The willingness of households to spend any extra income they earn
Factors which may affect consumption
Interest rates
Consumer confidence
Asset prices
level of household in debtedness
Level of real disposable income
Expected future income
Level of savings
Tax rates
Job security
Why would interest rates / availability of credit impact consumption
If the interest rates are caught the cost of borrowing falls and the rate of return on saving falls so the cost of borrowing falls there is an increase incentive for customers to borrow money and its cheese per to do so and spend the borrowed money on expensive items for example houses and cars
Why would consume a confidence impact consumption
If there is a high consumer confidence there is a higher marginal prosperity to consume
Asset prices impact consumption
This links to how wealthy people feel and therefore more likely to spend meaning a high marginal prosperity to consume asset prices include house prices share prices and bond prices if these increase people feel wealthier even though their income hasn’t changed
how do you level of house indebtedness Change the level of consumption
If families are living in debt they’re more likely to save their money meaning less consumption
level real disposable income impact on consumption
If there is an increase of disposable income There Will be an increase of real disposable income therefore increasing marginal prosperity to consume and increasing the level of consumption in an Economy
What’s investment
Total plan spending by firms on capital goods produced within the economy
What’s the accelerator theory of investment
The accelerator effect states that the level of planned investment is related to past change in income rather than the interest rates if it predicts that the investment spending in the economy is likely to be more volatile then spending as a whole
The effects of business investment spending
A rise in capital investment will have an effect on both demand and supply including a positive multiplier effect on national income
Demand side effects of investment spending
Increase spending on capital goods affects industries that manufactured this technology /capital
The supply side effects of investment spending
Investment is linked to higher productivity and expansion in a country’s Productive capacity reduces unit costs