--%>

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 : Goals of Microeconomic Hello guys I

    Hello guys I need your advice. Please advise your view for following economics problems. Microeconomic goals consist of: (w) full employment. (x) efficient allotments of resources. (y) price level stability. (z) ec

  • Q : Physical quality of life index DISCUSS

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

  • 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 : Maximum Consumer Surplus Assume that

    Assume that you receive $18 worth of ‘jollies’ (that is, utility, satisfaction or pleasure) from the very first hole of golf played on a particular day, and that your extra jollies from succeeding the holes drops $1 for each and every hole played. You shou

  • Q : Methods that FED can use to make money

    What are the four methods that FED can use to make money? What are the most powerful one and what technique the FED to create a gradual easing of the money supply either created or destroyed most seldom uses?

  • Q : Explain Product Market Equilibrium. To

    To begin with, let us recall our three-sector product-market equilibrium model given as C + I + G = C + S + TTo this three-sector model, we now add the foreign trade-the exports (X) and imports

  • Q : Expenditure of money on party effects

    When you pay a straight A student in advance to write up your term paper and that person expends the money on a party and then, hung-over, can’t do a good job and hence you wind up with an F for submitting sloppily written gibberish, you encompass just suffered

  • Q : Value of total receipts of government

    Determine the value of total receipts of government budget when budget deficit is Rs 2,000 crores and the net expenses is Rs 3,000 crores.

  • Q : National income Gross domestic capital

    Gross domestic capital formation is always greater than gross fixed capital formation

  • Q : Problem related to rising GDP Between

    Between 1961 and 2007, the rising share of the Canadian population in paid employment contributed to rising GDP per person. But suppose that the share of the Canadian population in paid employment had remained constant between 1961 and 2007. What would Canadian GDP pe