--%>

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 : Macroeconomics-fiscal and monetary

    1) How can governments seek to control their national economies through fiscal and monetary policies?2) What are the causes of the fiscal deficits experienced by many developed nations in the past three years and what are the main effects

  • Q : In which of these two statements

    "In corn market, demand often exceeds supply and supply sometimes exceeds demand." "The price of corn rises and falls in response to changes in supply and demand."

  • Q : Consumer Equilibrium when current

    Can someone please help me in finding out the accurate answer from the following question. When Brussels sprouts cost $1 per pound and tofu is $2 per pound and your marginal utilities (additional jollies) from either an additional pound of tofu or an additional pound

  • Q : The market system 1. Examples of

    1. Examples of command economies are: A. The United States and Japan. B. Sweden and Norway. C. Mexico and Brazil. D. Cuba and North Korea.

  • Q : Value of MPC when MPS is zero Determine

    Determine the value of MPC whenever MPS is zero? Answer: Whenever MPS = 0, MPC = 1 – 0 = 1.

  • Q : Implication of Fiscal deficit

    Implication of Fiscal deficit A) It raise the supply of money in the economyB) It rises financial burden for future generation.C) It is the cause of inflation.

  • Q : Example of microeconomic issue Hey

    Hey friends i need your support for justify the problem that is given below: If the United Auto Workers Union acquires benefit package and a large wage from GM, Ford, and Chrysler which increases the cost of U.S. cars, it is a

  • Q : Market shift when exporting When the

    When the U.S. furniture market is primarily in equilibrium at point e on S0D0 and then Chinese manufacturers start exporting more furniture to the United States, then this market would shift towards a new equilibrium at: (1) point a. (2) point b. (3) point c. (4) poin

  • Q : Illustration of equal marginal advantage

    Can someone please help me in finding out the accurate answer from the following question. Shoppers who shift among checkout lanes until it emerges that all register lines are probable to be equally time-consuming are trying to verify to the law of: (i) Equivalent mar

  • Q : Evaluation of net present value Explain

    Explain evaluation of net present value (NPV) and internal rate of return (IRR) in brief?