Macro - Subject Specific Vocabulary Flashcards
National income
The monetary value of all the goods and services that are produced by an economy in a given period of time.
It is also equal to total expenditure (C + I + G + X - M) and total factor incomes
GDP (gross domestic product)
A measure of national income. The monetary value of the total output of an economy over a
given period of time, for example, one year.
Real GDP
The monetary value of the total output of an economy with the effects of inflation removed.
Nominal (money) GDP
The monetary value of the total output of an economy that has not been adjusted for the effects of inflation.
Real GDP per capita
The average, or mean, real GDP per person. Calculated by dividing a country’s real GDP by its population.
Index number
A statistic, with a base value of 100, used to measure changes in a selection of related variables.
Consumer prices index (CPI)
A measure of the price level and inflation based on a weighted basket of goods and services.
Standard of living
The ability of people to satisfy their needs and wants, including health care and education.
Purchasing power parity (PPP) exchange rate
An exchange rate that reflects what the two currencies are able to buy in their domestic economies.
Circular flow of income
A model of the economy that shows how money, goods and services flow between different sectors of an economy, including households, firms, the government and the foreign trade sector
Injections
Types of expenditure that add to and increase the circular flow of income in an economy.
Injections are investment, government spending and exports.
Withdrawals (leakages)
The part of household income that is not spent on goods and services produced by the economy. It is income that is not passed on around the circular flow of income.
Withdrawals are saving, taxation and imports.
Aggregate demand
Total planned spending on goods and services produced in the domestic economy, aggregate
demand.
AD = C + I + G + (X – M)
Demand-side shock
An event that leads to a sudden or unexpected change in aggregate demand.
Supply-side shock
An event that leads to a sudden or unexpected change in aggregate supply.
Consumption
Spending by households on goods and services to satisfy needs and wants.
Investment
Spending that leads to an increase in the capital stock. .
Investment is an injection into the
circular flow of income
Exports
Goods and services sold to other countries.
Exports are an injection into the circular flow of income.
Saving
Income that is not spent.
Saving is a withdrawal from the circular flow of income.
Taxation
Money that individuals and firms must pay to the government.
Taxation helps to finance
government sending and is a withdrawal from the circular flow of income.
Imports
Goods and services bought from other countries.
Imports are a withdrawal from the circular flow of income
Accelerator process
A theory that says investment depends on the rate of change in national income.
An increase in the rate of economic growth (national income) will lead to a proportionately larger increase in investment
Multiplier
The extent to which a change in injections or withdrawals affects national income.
For example, if injections into the circular flow of income increase by £100 million and this leads to a £250 million increase in national income, the multiplier is 2.5.
Marginal propensity to consume (MPC)
A measure of how a change in income affects consumption
The MPC is calculated by dividing
the change in consumption (∆C) by the change in income (∆Y) that caused the change in
consumption. MPC = ∆C ÷ ∆Y