--%>
Assignment Help - homework help

Explain Product Market Equilibrium.

To begin with, let us recall our three-sector product-market equilibrium model given as 

C + I + G = C + S + T

To this three-sector model, we now add the foreign trade-the exports (X) and imports (M). with the addition of X and M, the four-sector product-market equilibrium condition is written as 

C + I + G + (X - M) = C + S + T 

The variables X and M need some explanation and quantification exports (X) of a country depend on a variety of factors governing the foreign demand for its goods and services. The inclusion of foreign demand parameters in the domestic model of a country is neither an easy task nor a necessity for a simplified model. Therefore, X is assumed to be a constant factor, that is,

X = X

As regards imports, imports (m) of a country are a function of a number of factors, however, for the sake of analytical simplicity; imports are treated as the function the country's national income(Y). That is import function takes the following form

M = + mY

Where, M is autonomous import and m is marginal propensity to import, the proportion of marginal national income spent on imports.

With X and M defined, the four- sector product-market equilibrium condition given in can be rewritten as 

C+ I + G + X - M - mY = Y = C + S + T 

The product-market equilibrium condition can also be expressed as 

Y = C + I + G + X - M - mY

Where C = a + by d( where Yd = Y - T = disposable income)

S = - a + (I - B) y (where I - B = mps)

I = I - Hi (where h > 0) 

G = G, (where G is constant)

T =T + t y, (where T is constant tax and t is tax rate <1)

By substituting the equilibrium level of income can be expressed as

Y = a + b [Y - (T + t Y)] + I - hi + G +X - M - my

=a + by - b t - bty + I - hi + G + X - M - my 

Y = 1 / 1-b+ bt + m (a - b T + I - hi + G + X - M

Y = 1 / 1 - b (1 - t) +m (a - b T + I - hi + G + X - m 

Note that the term 1/ (1 - b + bt + m) is tax-trade multiplier which may be redesignated as mu. Also let us designate the sum of the five constants, viz a, i. G, X, and M as A. by substitution these value 

Y = mu (a - b T - hi)

(Where mu is tax-trade multiplier and A = a + I + G + X - M)

Equation  gives the aggregate demand (AD) function in a four-sector model. 

   Related Questions in Macroeconomics

  • Q : Market demand curve for new houses The

    The market demand curve for latest houses would rise in response to a rise in: (1) construction technology. (2) The costs of lumber. (3) Housing prices. (4) Legal price ceilings on rental properties. (5) Expectations regarding future housing prices.

    Q : The Fed can control the Fed funds rate

    Question: Hubbard argues that the Fed can control the Fed funds rate, but the interest rate that is important for the economy is a longer-term real rate of interest.   How much control does the Fed have o

    		•
  • Q : Custodian of nations foreign exchange

    Name the institution that acts as a custodian of nation’s foreign exchange reserves? Answer: The Central Bank is an institution that acts as custodian of natio

    		•
  • Q : Why is tax not a capital receipt

    Illustrate, why is tax not a capital receipt?

    		•
  • Q : Tariffs Tariffs: -are also called

    Tariffs: -are also called import quotas. -may be imposed either to raise revenue (revenue tariffs) or to shield domestic producers from foreign competition (protective tariffs). -are per unit subsidies designed to promote exports. -are excise taxes on goods exported abroad.

    		•
  • Q : Export business prefer rising or

    Would export businesses choose a rising or declining dollar? Would it be similar for a European tourist on a budget and visiting the Grand Canyon? Explain your answer.

    		•
  • Q : Positional Goods problem Can someone

    Can someone help me in finding out the right answer from the given options. In accord with the theories of Thorstein Veblen, the positional goods from which the owner or user of the good derives the jollies mainly since of the power, class and status signaled by the p

    		•
  • Q : Principles of macroeconomics Explain

    Explain the concept of “economies of scale” and “increasing returns”.

    		•
  • Q : What is Equilibrium What do you mean by

    What do you mean by the term Equilibrium? Also state its proper definition.

    		•
  • Q : Fiscal Monetary changes With the

    With the general equilibrium framework in place, the stage is now set for introducing fiscal and monetary changes and analysing their effects on the general equilibrium. We will first introduce a fiscal change in the form of increase in deficit-financed expenditure, a

    		•