--%>
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 : Consumer Surplus definition Can someone

    Can someone help me in finding out the right answer from the given options. The basic difference between the dollar amounts people would willingly to pay for a particular quantity of a good and the amounts that they do pay at a particular market price is termed as: (1

    		•
  • 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 : The failure of the Supercommittee

    Question: Some commentators have argued that the failure of the "Supercommittee" is good thing for the economy?  Do you argree? Answer:

    Q : Are government budget scarcities always

    ‘The country is at present in recession and this has led to worse tax revenue and high expenses. The effect is a huge deficit. The government decides to increase taxes and lower government expenses. Is this an excellent idea?’

    		•
  • Q : Employment Effect Fiscal policy

    Fiscal policy measures used for achieving full-employment level of output and price include increase in the government expenditure and cut in tax rates. A cut in tax rates eliminates only the adverse effect of high tax rates, whereas an increase in government expendit

    		•
  • Q : Self consumption-Value of output

    Illustrate whether output generated for self consumption is comprised or not comprised in the value of output? Answer: The output generated for self consumption is

    		•
  • Q : FX rates In June 2005, a Big Mac sold

    In June 2005, a Big Mac sold for 6,000 pesos in Colombia and $3.00 in the United States. The exchange rate in June 2005 was 2,300 pesos per dollar. So, on Big Mac purchasing power parity grounds the Colombian peso was

    		•
  • Q : Computing Fiscal deficit In government

    In government budget, primary deficit is Rs. 10,000 crores and interest payment is Rs. 8,000 crores. Compute the fiscal deficit?

    		•
  • Q : Sources of demand for foreign currency

    State main sources of demand for foreign currency? Answer: The four main sources of demand for foreign currency are as follows: A) To buy services and goods from other countries. B) To send a gift abroad.

  • Q : What is Equilibrium What do you mean by

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

    		•