--%>

Explain Tax rate increase.

A change in tax rate changes the IS equation, LM equation remaining the same. Let same, let us suppose that the government raises the tax rate from 20 percent to 25 percent. The rise in tax rate from t = 0.20 to t = 0.25 would change the IS equation by changing the consumption function with increase in tax rate, the consumption function changes form C = 100 + 100 + 0.60 Y, given in Eq. to 

C= 100 + 0.75 [Y - (40 + 0.25Y + 40)]

= 100 + 0.5625Y


With change in the consumption function, the new IS schedule (say, IS2) can be obtained as follows. 

IS2 schedule: 

Y = C + I + G + ?G

= 100 + 0.5625Y + 250 - 4i +200

= 1257.14 - 9.14i


Given the new IS function (IS2) in Eq. the new equilibrium interest rate can be worked out as follows.

Is2 = LM

1257.14 - 9.14i = 800 + 80i

89.14i = 457.14

I = 5.13 (percent)

Once interest rate is known equilibrium income with tax effect can be computed by substituting the interest rate (5.13%) into the IS2 or LM equation. By using IS2 function, we get

Y = 1257.14 - 9.14i = 1257.14 - 9.14 (5.13)

The negative effect of increase in tax rate on the equilibrium income equals income before tax - rise less income after tax-rise that is

Tax effect = $1311.10 bn - $1210.25 bn

$100.85 billion

This calculation shows that increasing tax rate form t = 0.20 to I = 0.25 decreases equilibrium income by $100.85 billion

   Related Questions in Macroeconomics

  • Q : Inflation movements and factors Use

    Use economic theory to explain the inflation movements and factors influencing it. Use relevant models to explain the impact of changes in fiscal and monetary policies in curtailing inflation.

  • Q : What is Supply schedule What is Supply

    What is Supply schedule and how it is related to supply curve?

  • Q : Shifting of demand curve due to new

    Assume that the launch of Microsoft Xbox 360 moved the demand curve for Sony PlayStation 2 games from D0 to D1 throughout similar period if new game designers enter into this market and hence supplies of PlayStation 2 games shifted S0 to S1. The market equilibrium: (1

  • Q : Recovery of loans-capital receipt Why

    Why is recovery of loans taken as a capital receipt? Answer: Recovery of loans is always treated as a capital receipt since it leads to refuse in financial assets o

  • Q : Reallocation of resources through budget

    Reallocation of resources: In case, the market economy fails or does not attain the desired social objectives, the government has to interfere via budget and reallocate resources accordingly. Through its budgetary

  • Q : Backward shifting of incidence tax When

    When firms bear the legal incidence of a tax, this is backward shifted while: (1) firms burden consumers by raising their prices. (2) the tax burden is borne by workers in the form of lower wages. (3) resource suppliers seek higher factor payments to

  • Q : Development economics Government tax

    Government tax and transfer payments generally

  • Q : Concept of deflationary gap Elucidate

    Elucidate the concept of deflationary gap. Answer: Deflationary gap is the deficit in aggregate demand from the level needed to maintain full employment equilibrium

  • Q : Equilibrium The equilibrium interest

    The equilibrium interest rate is determined

  • Q : Income approach to evaluate national

    Explain in short the income approach to evaluate national income. Answer: Under income method to compute the National Income, the steps given below have been taken into account: A) First of all production units tha