Aggregate Demand Flashcards
Define Aggregate Demand
Aggregate demand is the total of all demand or expenditures in the economy at any given price
Why is the curve downward sloping?
A rise in the price level will lead to a fall in the equilibrium level of national income and therefore of national output (GDP) due to the inverse relationship
AD Equation
AD = C + I + G + (X-M)
Define price level
The average level of prices in the economy
Define consumption
Spending by households on goods and services
Define investment
Spending on capital goods and services
Define Government Spending
Spending by the public sector on goods and services such as education, health care and defence
Define Net Exports
A measure of a country’s total trade of goods and services, also known as the Balance of Trade
What causes a movement along the AD curve?
Changes in the GPL
What causes a shift of the AD curve?
Factors other than the price level
Keynesian beliefs of consumption
As incomes increase, consumption increases
Reason 1 for downward sloping curve: Real Income Effect
As GPL falls, real value of income rises, therefore consumers are more willing and able to pay for goods and services
Reason 2 for downward sloping curve: Interest Rate Effect
Higher interest rates increase the cost of borrowing, reduce disposable income and therefore limit the growth in consumer spending.
Interest rate
The cost of borrowing
MPC (Marginal Propensity to Consume)
The change in consumer spending arising from a change in disposable income
MPC Equation
MPC = change in C / change in Y
MPS (Marginal Propensity to Save)
The proportion of each added £ of income that is saved rather than spent
MPC + MPS =
1
3 Factors that influence the level of Consumer Spending
- General state of consumer confidence
- Availability and cost of consumer credit - affects willingness to borrow
- Inflation - rising inflation tends to erode the real value of money wealth. Households react to this by attempting to restore the real value of their wealth by saving more, reducing consumption
Define Consumer Confidence
An economic indicator that measures the degree of optimism that consumers have regarding the overall state of a country’s economy and their own financial situations.
APC (Average Propensity to Consume)
A measure of the fraction of the total disposable income consumed
APC Equation
APC = total consumption / total income
Physical wealth e.g.
Houses, cars, furniture
Monetary wealth e.g.
Cash, money in the bank, stocks and shares, pension rights