2 - Unemployment and the fiscal policy Flashcards
in the economy as a whole what must you have?
cat just have a demand side you must have a supply side, incorporate this in explanation of short run fluctuations
what is the short run?
some factors are fixed and others variable, so what happens in the short term, can change some of them
what is the long run?
mor epermenent changes, all factors are variable
what is meant by descriptive analysis in this chapter?
- simple multiplier model
- complete multiplier model
- complete multiplier model with supply side
(how it works)
what is the presecritve analysis in this chapter?
- can fiscal policy be used to stabilise th economy?
- should fiscal policy be used to stabilise economy?
(how it should work?)
what is the simple multiplier model?
only looks are the demand side
deals with consumption and investment
(C+I)
what is the equation for C?
Co + C1 x Y
if you do a graph it is usually correlated, clear linear function
e.g. more money you have the more consumption
what is meant by Co?
- autonomous level / substance level
- financial crisis, things you have to spend money on no matter what, regardless of your income
what is meant by C1 x Y?
- variable amount
- C1 less than one but greater than 0 (e.g. if you had £1 you would spend some of it but save some)
- C1 = marginal propsentiy to consume
- how much will you consume if you earn that income
- consume proportion of income
what is meant by marginal propensity to consume?
- the proportion of disposable income that individuals spend on consumption
- if you had one extra unit of input how much would you spend
how can marginal propensity to consume differ from people to people?
if you have over draft you can go over one but many people do not
varies across countries
what is th equation for investment?
I (r, p, P )
investement rate
profit rate
discount rate
what’s the difference between investment and consumption?
in consumption once its gone its gone
what is investment rate?
firms behaviour and includes households e.g. when looking ar people investing in properties, or something durable
key determinant in multiplier model
if interest rate goes up there is a lower demand for investment
what is the multiplier model?
The multiplier model is an idea developed by Keynes which demonstrates that the additional economic activity generated by injecting a certain amount of money into a system exceeds the original sum
what is profit rate?
when economy in very bad times investor ends up with no profit
so profit rate is correlated with investment rate
rate of return on a an investment, if interest is low, profit rate is likely to be higher
what is discount rate?
subjective measure of impatience, higher impatience and lower demand for investment e.g. if your sick you will consume more and invest less as a discount rate is high
what does investment depend on?
investment rate
in the keynesian model what is assumed?
that there is no supply side in the multiplier model
short run model so it assumes that supply side satisfies demand (output always in excess supply)
what is the market clearing condition?
aggregate supply = aggregate demand
or y (income) = aggregate demand
when Y is factored out, what is the formula for the multiplier model (simple)?
Y =
1 / 1 - MPC (C1) x (Co + 1)
so if MPC = 60%
then your Y increases by 2.5
your spending becomes someones income to be spent (multiplier)
what is the multiplier effect?
occurs when somebodies consumption is somebody elses incomes and keep going
if a drop was to happen in the multiplier effect then whole economy would drop
what is the complete multiplier model equation?
AD = C + I + G + NX
if G is introduced into the model what happens?
- G : public goods and services, public investment
- if G increases so does the whole AD of the economy
- ## tax : affecting the consumption equation (introduction of G brings in tax)