--%>

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 : 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 : Microeconomics concepts as a primary

    Write a 3 page paper using microeconomics concepts as a primary mode of analysis.  Your paper should use 1.5 line spacing, a 12 point font, and 1inch margins.  Proof read your paper.  You will lose 5 percentage points per day for each day past the

  • Q : How Bank rates control the credit How

    How Bank rates control the credit? Answer: Bank rate is the rate of interest at which the Central bank lends to Commercial banks. By increasing the bank rate centra

  • Q : Physical quality of life index DISCUSS

    DISCUSS the experience of high GNP countries and low GNP with regard to PQLI.

  • 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 : Why value of multiplier is low In poor

    In poor countries people spend a big percentage of their income so that APC and MPC are high. Yet, the value of multiplier is low. Explain why?

  • Q : Aggregate Expenditure model Describe

    Describe Aggregate Expenditure model and also state AD/AS model?

  • 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 : Public debt How does an internally held

    How does an internally held public debt differ from an externally held public debt?

  • 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