Aggregate Demand Flashcards
Aggregate demand define
The total demand for a country’s goods and services at a given price level and in a given time period.
Price level define
The average of each other prices of as the products produced in an economy.
AD equation
AD = C + I + G ( X - M )
Real GDP define
The country’s output measured in constant prices as so adjusted for inflation.
Consumer expenditure define
Spending by households on domestic consumer products
Investment definition
Business and government spending on capital goods.
Government spending define
Current expenditure by the central government and local government on goods and services e.g. Spending on teachers’ pay, nurses, etc.
Exports define
The value of goods and services sold abroad.
Imports define
The value of goods and services bought from abroad
Net exports define
The value of exports minus the value of important.
What does the AD curve show?
AD curve shows the relationship et week aggregate demand and the general price level in the economy, that is, as the general price level rises, AD falls, ceteris paribus. As the general price level fall, AD rises ceteris paribus. There is an inverse relationship between the price level and AD.
Why is there an inverse relationship between the general price level in the economy and aggregate demand?
- real money balances effect
- interest rate effect
Real money balances effect
The lower the average domestic price level, the more a fine money income / stock of savings will buy. Therefore, consumption / AD is higher.
Interest rate effect
If in the UK the general price level falls, this causes a decrease in the demand for money and a consequential fall in interest eyes with an expansionary effect in the entire economy, this is reflected in an increase in AD.
Effect of a rise in the general domestic price level on AD.
Increase price
Decrease in real output
(Due to increase in average domestic price, e.g. Did to high interest rates).
10% increase in average income may not result in 10% increase in consumer expenditure
Increase by 10% if the marginal propensity to consume is less than 1. They do not spend as they are spending. MPS higher than 0.
Determinants of consumption
- Real disposable income
- availability of credit
- household wealth
- interest rates
- consumer confidence
- the distribution of income and marginal propensity to consume
Real disposable income
An increase in real disposable income will lead to an increase in consumer expenditure and vice versa.
Consumer spending rises because the demand for all normal goods rises as incomes rise.
Household wealth
Higher wealth, e.g. Savings, shares, etc. Tends to lead to higher spending. This is because savings can be spent and more can be borrow against the value of other assets, such as a house.
Define income
A flow.
E.g. Dividends, wages, etc.