--%>

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 : What is substitutes Substitutes : The

    Substitutes: The two goods for which a rise in the price of one good leads to a rise in the demand for another.

  • 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 : Market Economy Explain the statement "

    Explain the statement "Hypothes is the basic short run and long run behaviors of the airline industry in a market economy".

  • Q : Define voluntary unemployment Voluntary

    Voluntary unemployment: It refers to a condition when person are not willing to do work at customary market wage rate, though they are receiving a work.

  • Q : Difficulty of scarcity People in whole

    People in whole the world confront the difficulty of scarcity at always because: (i) restricted resources and times preclude producing all the goods people need. (ii) greedy capitalist monopolies charge excessively high prices. (iii) international mar

  • Q : Estimating rational income How will you

    How will you treat the given in estimating rational income of India? Provide reasons for your answer. (i) The value of bonus shares received by the shareholders of a company.(ii) Interest received on loan pro

  • 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 : International trade the most frequently

    the most frequently asked question on foreign direct invetment

  • Q : Important issues in Macroeconomics to

    Macroeconomics is primarily focused on issues about: (w) economy extensive aggregate variables as like national income. (x) the structure of economic activity quite than its level. (y) resource allocations through households and business firms. (z) po

  • Q : Define law of supply Law of supply : It

    Law of supply: It is the claim which, other things equivalent, the quantity supplied of a good increases whenever the price of the good increases.