--%>

Open-Economy Macroeconomics

Open-Economy Macroeconomics

 

Suppose the structure of an economy with a flexible exchange rates is represented by:

 

C = 200 + 0.85*(Y - T)                                                    L(r, Y) = 0.25*Y - 25*r

T = 200                                                                                                      MS/P = 2250

I = 1700 - 25*r

G = 1800

NX = 900 - 200*e                        where e represents the real exchange rate.

 

(a)    Explain intuitively why net exports (NX) depend negatively on the real exchange rate.

 

 

 

(b)   Derive the equation for the IS curve.

[HINT: Recall that the equilibrium in the goods market for an open economy is given

by Y = C + I + G + NX; then solve for Y as a function of r and e]

 

 

(c)    Derive the equation for the LM curve.

[HINT: Recall that the equilibrium in the financial market is given by MS/P = L(r,Y); then solve for Y as a function of r]

 

 

(d)   When there is perfect capital mobility, it is possible to assume that the equilibrium in international capital markets implies that interest rates here and abroad must be equal.  That is,

 

r = rf

 

Otherwise, capital would move towards more profitable markets.  Assume that this economy cannot control the foreign interest rate (rf).  That is, the interest rate is exogenously determined (i.e., determined outside the model).  Notice that in this case, the equilibrium in the financial market (the LM) is enough to determine equilibrium Y.  Calculate equilibrium Y if rf = 2.

 

 

(e)    Calculate equilibrium C, I and NX. [HINT: Knowing Y and r, it is possible to pin down C and I.  Also, with Y, C, I and G and knowing that Y = C + I + G + NX, can pin down NX]

 

 

(f)    What is the value of e that guarantees equilibrium in the goods market? Now, we will study the impact of fiscal and monetary policy for both a flexible exchange rate regime (or "free floating") and a fixed exchange rate regime (or "peg").

 

Flexible Exchange Rates

 

(g)   Suppose G increases by 90.  Assuming flexible exchange rates, show graphically what happens after a expansionary fiscal policy.  Does equilibrium Y output increase?  Why?  Calculate the new equilibrium output.

 

 

   Related Questions in Macroeconomics

  • Q : Supply use two market diagrams to

    use two market diagrams to explain how an increase in state subsidies to public colleges might affect tuition and enrollments in both public and private colleges?

  • Q : Value added technique for national

    What is the alternative name of value added technique of estimating national income? The alternative name of value added technique of estimating national income is production method.

  • Q : Explain Product Market Equilibrium. To

    To begin with, let us recall our three-sector product-market equilibrium model given as C + I + G = C + S + TTo this three-sector model, we now add the foreign trade-the exports (X) and imports

  • Q : Assignment for help Help me with this

    Help me with this assignment! Just 25 questions! Thank you so much!

  • Q : Define voluntary unemployment Voluntary

    Voluntary unemployment: It refers to a condition when person are not willing to do work at customary market wage rate, though they are receiving a work.

  • Q : Zero primary deficits What points out

    What points out zero primary deficits? Answer: Zero primary deficits signify that the government has to resort to borrowings simply to make interest payments.

  • Q : Ideas in which organization is involved

    Ideas in which organization is involved: Talking about the growth of any company. There are basically three type of broad ideas in which management of any organization is involved. These are: 1. Corporate Strategy<

  • Q : Reducing illegal programs for public

    Methadone programs for addicts are intended at reducing illegal heroin traffic through: (i) decreasing the heroin supply. (ii) increasing the price of heroin. (iii) decreasing the demand for heroin. (iv) executing drug dealers. Hel

  • Q : Maximum Consumer Surplus Assume that

    Assume that you receive $18 worth of ‘jollies’ (that is, utility, satisfaction or pleasure) from the very first hole of golf played on a particular day, and that your extra jollies from succeeding the holes drops $1 for each and every hole played. You shou

  • Q : Change in stock Why change in stock is

    Why change in stock is considered a portion of final expenditure? Answer: The Unsold stocks left with producers are supposed as purchased by the producers themselve