--%>

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 : Explain about the marginalism theory

    Most economists believe such that people increase an activity when they perceive the expected additional benefits as exceeding the expected extra cost, but decrease their level of an activity whenever they believe the benefits from the last few units of the activity a

  • Q : Difference on consumer willing to pay

    I have a problem in economics on Consumer Surplus-Difference consumer willing to pay and what actually pay. Please help me in the following question. The consumer surplus signifies to the difference among the: (i) Satisfaction of wealthy people and th

  • Q : Value of MPC Why can be value of MPC be

    Why can be value of MPC be not more than one? Answer: The value of MPC will not be more than one since increment in consumption (ΔC) can’t be more than

  • 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

  • Q : Revenue receipts and Capital receipts

    Elucidate the basis of categorizing government receipts into revenue receipts and capital receipts. Answer: Revenue Receipts: The government revenue receipts are such receipts A) that neither makes liability

  • Q : Stage of the business cycle What stage

    What stage of the business cycle is our economy experiencing at present time? proof your answer.

  • Q : Microeconomic and macroeconomic effects

    Predictions which restricting international trade to protect specific industries and “infant” firms would (a) inefficiently decrease aggregate output and employment, (b) raise the market power of the protected firms and their workers, and

  • 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 : Moentary policy a restrictive monetary

    a restrictive monetary policy is designed to shift the

  • Q : Explain Tax rate increase. A change in

    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<