--%>
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 : Redistribution of Income through budget

    Redistribution of Income: Each and every economy strives to achieve a society, where inequality of income and wealth must be minimum. In order to attain this objective via government budget the government spends adequate money on social security schem

    		•
  • Q : Net revenue when price increases Net

    Net revenue for Macho Man fake mustaches increases after the price raised from $5 to $7, pointing that demand faced by Macho Man was: (i) Relatively elastic. (ii) Relatively inelastic. (iii) Unitarily elastic. (iv) Perfectly inelastic. (v) Perfectly e

    		•
  • 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 : When Macroeconomic theory least related

    Macroeconomic theory would be least related in analyzing the results of: (w) optional ways of funding deficits in international trade. (x) U.S. federal budget deficits. (y) consumer items purchased through middle-income families. (z) deficit spending through the United Nations.

    		•
  • Q : Long-term Federal government budget

    Question: Explain why there are long-term Federal government budget problems.   Explain why the base-line forecast of the CBO is misleading. Include in your answer why solutions to the problem will necessarily involve a decision about which

    		•
  • Q : Tax shifting forward totally A tax is

    A tax is shifted forward when the tax burden causes the: (w) consumers to pay higher prices. (x) lower purchasing power for the party bearing the legal incidence. (y) workers to experience lower take home wages. (z) decreased dividends to corporate st

    		•
  • Q : Difference between

    Elucidate the differences among the frictional, structural, and cyclical forms of unemployment.

    		•
  • Q : Price ratios and marginal utility ratios

    I have a problem in economics on Price ratios and marginal utility ratios. Please help me in the following question. The efficiency in consumption needs equality of: (i) Income distribution. (ii) All product price and resources. (iii) MC and MR. (iv)

    		•
  • Q : Determine the marginal propensity to

    If disposable income increases from Rs. 1,000 to Rs. 1,100, savings increase by Rs. 30. Determine the marginal propensity to save and marginal propensity to consume?

    		•
  • Q : Principles of macroeconomics Explain

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

    		•