Macroeconomics Flashcards
(94 cards)
Index Numbers
A way of expressing economic data. An index number is a figure reflecting price or quantity compared with a base value.
Index Number Formula
Current Price / Base Price x 100
Inflation
A sustained increase in the general price level in an economy.
Real GDP
The true sum of all products produced by a country adjusted for inflation.
GDP Formula
GDP = Consumption + Investment + Government Expenditure + (Exports - Imports)
GDP = C + I + G +(X-M)
Real GDP Formula
Nominal GDP x (100/General Price Index)
Injections
Money which enters an economy (government spending, investment and exports).
Withdrawals (Leakages)
Money which leaves the economy (taxes, savings and imports).
Injections>Withdrawals
National Income will increase and vice versa.
Factor Services
Land
Labour
Capital
Enterprise
Factor Incomes
Wages/Salaries
Interest
Profit
Rent
Aggregate Demand (AD)
The total demand for goods and services produced in an economy at a given price level and in a given period of time.
What influences exports/imports?
Disposable income abroad
Disposable income at home
Exchange rate
Tariffs
Economic Shocks
Unexpected events that affect the economy and shift AD
Internal Shock examples
Pound drops in value Terrorist attack Increased VAT Civil War Rise in the minimum wage Fall in house prices
External Shock examples
Stock market crash Hurricane Foreign war Tariff policy Sanctions Major business goes bankrupt
The Multiplier Effect
A change in one or more components of AD will lead to a greater final change in AD and Real GDP (National Income).
Multiplier Effect formula
Change in NI/ Initial change in Government Spending
ΔY / ΔG
Marginal Propensity to Withdraw (MPW)
The proportion of additional income spent on withdrawals to the circular flow of income (MPS + MPT + MPM).
Marginal Propensity to Consume (MPC)
The proportion of money people spend on consumption after tax and imports.
The Accelerator Effect
Assumes an increase in AD will cause an increase in business investment as firms invest in order to produce more output.
Aggregate Supply (AS)
The total supply of all goods and services in the economy.
National Output
Measures goods and services produced by an economy.
National Income
Incomes received by labour and other factors of production.