--%>

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 : Conditions through which the supply

    What are the conditions through which the supply curve will shift?

  • Q : Calculating exchange rate for USA dollar

    If $9 is required to buy £2, what is the exchange rate for USA dollar? Answer: £1 = 9/2 = $4.5, i.e., £1 = $4.5.

  • Q : Marginal utility of good at its maximum

    Can someone help me in finding out the right answer from the given options. The consumer maximizes utility whenever the spending patterns cause: (1) Marginal utility of each and every good to be at its maximum value. (2) Marginal utilities of each and every goods cons

  • Q : Define Demand schedule What is Demand

    What is Demand schedule and how it is associated to demand curve?

  • Q : Purchasing and consumption of

    The usual household maximizes the utility by spending all its money to purchase and consume a combination of goods which yields: (1) Fundamental physiological requirements and customary wants. (2) Maximum status and the social prestige. (3) Complete satisfaction of al

  • Q : Problem on production function Consider

    Consider a model economy with a production function Y = K0.2(EL)0.8, where K is capital stock, L is labor input, and Y is output. The savings rate (s), which is defined as

  • Q : Analyzing number of event that

    How can we analyze the number of event that influences the market?

  • Q : Foreign trade eliminate deficient demand

    In what respect foreign trade will be helpful in eliminating the adverse economic influences of deficient demand? Answer: Export increases the demand for services 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 : Define bank rate policy Define bank

    Define bank rate policy? How does it operate as a technique of credit control? Answer: Bank rate is the rate at which the central bank provides loans to the commerc