--%>

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 : Paradox of Value problem I have a

    I have a problem in economics on Paradox of Value problem. Please help me in the following question. The Diamond Water Paradox occurs from the difficulties in differentiating between: (i) Consumer surplus and the total utility. (ii) Total utility and

  • Q : Law of equal marginal advantage The law

    The law of equivalent marginal advantage is violated when people: (1) think about paying a higher price that ensures better quality. (2) elect a general as president while war clouds threaten. (3) fail to allocate similar resources within equally valu

  • Q : Problem on full employment Does full

    Does full employment take place if AD = AS or S = I?

  • Q : Value of fiscal deficit Evaluate the

    Evaluate the value of fiscal deficit when primary deficit is 53,000 crores and interest on borrowings is Rs 5,000 crores?

  • Q : Fiscal and monetary policies in

    Explain the impact of changes in fiscal and monetary policies in curtailing inflation?

  • Q : Ideas in which organization is involved

    Ideas in which organization is involved: Talking about the growth of any company. There are basically three type of broad ideas in which management of any organization is involved. These are: 1. Corporate Strategy<

  • 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 : Components of aggregate demand What are

    What are the components of aggregate demand (AD)? Answer: The components of AD are as follows:AD = C + I + G + (X - M) By Simplifying AD = C + I, Here C refers to Household consumption demand and I refer

  • Q : Assignment Task 1 – Commercial banks in

    Task 1 – Commercial banks in United Economy have total deposits of AED 300 billion. Their reserves are AED 15 billion, two- thirds of which are with the Central Bank as deposits. There are AED 30 billion notes outside the banks. There are no coins! Calculate- a) The monetary base. b) The bank

  • Q : What is Bank rate Bank rate : This is

    Bank rate: This is the rate at which the central bank loans money to commercial bank.