chap 7 Flashcards
what happens when trade balance increase ? (in TB - real exchange rate graph )
- trade balance shift up , in relation to ER
Factors that shift LM curve (graph)
what is the shape of the IS curve ? ( line )
- It is curve is downward
- it illustrate the negative relationship between the interest rate I and output Y
Deriving LM curve
Shock to investment (investment graph)
Monetary policy under fixed exchange rate
Consumption Funtion Graph:
Two important observation about deriving the IS curve :
- In an open economy , the lower interest rates stimulates demand through the traditional closed- economy investment channel and through trade balance.
- The trade balance effect occurs because lower interest rates cause a nominal depreciation ( a real depreciation in the short run), which stimulates external demand.
Formula for goods market equilibrium :
Y = C (Y-T~) + I(i) + G~ + TB ( EP~ / P~* , Y - T~ , Y* - T~*)
C (Y-T~) : consumption function ( Keynesian)
I(i) : investment function (relate to interest rate)
G~: government consumption ( g = taxes , no social program)
TB ( EP~ / P~* , Y - T~ , Y* - T~*) : trade balance function ( increasing function , decreasing function , increasing function )
Formula for Expected real interest rate “re” :
re = i - Pie
I : interest rate
Pie : inflation rate
“re”: Expected real interest rate re is the cost of investment
Liquidity Trap
Formula for aggregate demand :
D = C + I + G +TB
C: consumption,
I : investment
g : government
tb: trade balances
What a general equilibrium market needs?
It require equilibrium in all markets :
- Goods markets
- Money Market
- Forex market
Who and How stabilization policies can be used ?
- By authorities, they will try to keep the economy at full employment level output
What policymakers should do if the economy is hit by a temporary adverse shock ?
- They should use expansionary monetary policies to prevent deep recession
- Conversely, of the economy is push by a shock above its full employment level , contractionary policies could tame the boom
Poland and Lavia (policies differences)
formula of supply : (fallowing previous assumptions of tb and GNI = GDP )
Supply = GDP = Y
Y : gross national income (GNI)
what is the meaning of “ crowding out” ?
- It is the fiscal expansion impact where the increase in government spending is offset by decline in private spending
Responses to Policies Shock in the IS-LM-FX
what happens when household decide to consume more ? (in consumption - disposable income graph )
- the consumption function shift up
Factors that shift the IS curve : Demand curve D (shift up) IS curve shift right
- Rise in government spending “G”
- Fall in taxes “T”
- Fall in the FOREIGN interest rate “I*”
- Rise in the FUTURE nominal exchange rate “ER”
- Rise in foreign prices “P*”
- Fall in home prices “P”
- Any shift up in the consumption function “C”
- Any shift up in the investment function “I”
- Any shift up in the trade balance function “TB”