THEME 2, National Income (2.4) Flashcards
What is income?
- Income is a flow concept
- Income flows in and out again
- Earned by all 4 factors of production
- Wages, rent, interest, profit
What is wealth?
- Wealth is a stock concept
- If we don’t spend all of our income we can build a stock of wealth
- Savings, shares, property, bonds and pensions
How can wealth generate income?
- If you have a second property you can rent it out for income
What are injections in to the economy?
- Money put into the circular flow of income
What are leakages in to the economy?
- When money is removed from the circular flow of income
Examples of injections in to the Economy
- GOVt spending
- Investment
- Exports
Examples of leakages from Economy
- Taxes
- Savings
- Imports
- Marginal propensity for money to be withdrawn
What happens when the sum of injections is greater than the sum of leakages?
- The economy will grow
What happens when the sum of injections is smaller than the sum of leakages?
- Economy will shrink
What happens to injections and withdrawals in equilibrium?
- Injections and withdrawals must be equal
- National income remains the same
What are macroeconomic objectives?
- Economic growth
- Low unemployment
- Low and stable rate of inflation (ideally 2%)
- Balance of payment equilibrium on current account
- Protection of the environment
What is the multiplier ratio?
- The numerical value that represents how much total national income (or GDP) will increase as a result of an initial injection of spending into the economy.
- Amplified effect of an initial change in spending
What is the formula for the multiplier ratio?
- K = 1/(1-MPC)
How to calculate MPC?
- MPC = 1 - (MPS+MPT+MPM)
What is MPC?
- MARGINAL PROPENSITY TO CONSUME
- The proportion of additional income that is spent on consumption.
What does a higher MPC lead to?
- A larger multiplier because more income is spent.
What does it mean when MPC equals 0?
- All additional income is saved
What does it mean when MPC equals 1?
- All additional income is spent
What is MPS?
- MARGINAL PROPESNITY TO SAVE
What is MPT?
- MARGINAL PROPENSITY TO TAX
What is MPM?
- MARGINAL PROPENSITY TO IMPORT
Define interest rate.
Cost of borrowing money, expressed as a percentage of the amount borrowed
What is spare capacity?
- When the economy is not at full capacity with all factors of production
- It is inside the PPF
- Negative output gap