National Income Flashcards
national income
the total income earned by residents of a country from the production of goods and services, in any given period of time. It is normally measured annually.
national income is denoted by
Y= C+I+G+X - M
The circular flow of income
the amount of income in circulation at any given time. This income passes from one person to another
leakage
anything that decreases the size of the circular flow of income eg imports
injection
anything that increases the size of the circular flow of income eg exports
a closed economy
is a country that doesnt partake in international trade ie strives to be self sufficient
an open economy
is a country that engages in international trade
consumption
the level of consumption depends on the level of income, as income increases so does consumption
the amount of income spent depends on the
average propensity to consume (APC)
APC
the % of income spent on goods/services
formula : total consumption
————————–
total income
Marginal propensity to consume (MPC)
the proportion of each additional unit of income that is spent on consumer goods/services
formula : change in consumption
————————————-
change in income
what does MPC depend on
level of income
availability of credit from banks
rate of interest
rate of income taxation
investment depends on
interest rates/cost of capital goods business peoples expectations government expenditure productive capacity of the economy state of technology
government spending depends on
the budget. independent of level of income
exports depend on
level of incomes abroad
competitiveness
value of the euro
government incentives
imports depend on
availability of goods cheaper foreign goods levels of income value of the euro marginal propensity to import
Marginal propensity to import (MPM)
proportion of each additional unit of income spent on imports higher MPM+ higher rate of imports formula: change in imports -------------------------- change in income
who created the multiplier
John Maynard Keyes
the multiplier theory
any initial increase in government spending will cause a much greater increase in GNP due to the fact that one persons expenditure is another persons income
the multiplier shows
the precise relationship between an initial injection into the circular flow of income and the eventual increase in national income that results
formula: 1
—————————————
(1-MPC) + MPM + MPT
Marginal Propensity to Tax (MPT)
the % of the last increase in income taken in taxation
formula: change in tax
———————–
change in income
Marginal Propensity to Save (MPS)
the % of the last increase in income saved
Formula: (1-MPC) or change in savings
—————————-
change in income
Transfer payments
payments received for which no factor of production has been supplied/offered.
income received that people did not supply goods/services for
eg social welfare payment, DIRT, PRSI
Impact of transfer payments on the multiplier
generally, the person in receipt of a transfer payment has a high MPC, if this is their sole income. They are then likely to spend all the money received.
Consequently,TPs speed up the pace at which money moves in the economy and this has a POSITIVE effect on the multiplier
Impact of shocks on the economy
circumstances beyond the control of the irish government will lead to less economic activity or growth.
could be positive or negative
trade cycles
recurring patterns of expansion and contraction in the economy
- Recovery
- Boom
- Recession
- Depression
- recovery
start at a depressed stage
high unemployment, low income
multiplier effect of small investment boosts
- boom
demand and investment peak, full employment
any further increase in demand will cause inflation and decrease demand
- recession
demand continues to fall, investment dries up, incomes fall
production falls, unemployment rises, demand decreases further
- depression
income, demand and production cease falling and level out (trough)
existing capital must be replaced and the cycle restarts
positive effects of economic growth
increase employment improved government finances effect on balance of payments improved standard of living effects on migration investment opportunities
negative effects of economic growth
inflationary pressures labour shortages demand for wage increases increased demand for imports pressure on housing market pressure on state infrastructure immigration/ displacement of population