--%>

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 : Value of exports of goods A country’s

    A country’s balance of trade is Rs. 75 crores. The value of imports of goods is Rs. 100 crores. What is the value of exports of goods?

  • Q : Definition of shortage Definition of

    Definition of shortage: It is a condition in which quantity demanded is more than the quantity supplied. The sellers will respond to the shortage by increasing the price of the good till the market reaches the equi

  • Q : Problem on full employment Does full

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

  • Q : MPC What relationship does the MPC bear

    What relationship does the MPC bear to the size of the multiplier? The MPS? What will the multiplier be when the MPS is 0, .4, .6, and 1

  • Q : Definition of surplus Definition of

    Definition of surplus: It is a condition in which quantity supplied is more than quantity demanded. To remove the surplus, producers will minimize the price till the market reaches to equilibrium.

  • Q : Substitution Effect explanation Can

    Can someone help me in finding out the right answer from the given options. The substitution effect is fully explained when: (i) Brandon just eat tofu since he is on a diet. (ii) A rise in the price of corn chips drives up demand for the salsa. (iii)

  • Q : Problem on superior or luxury goods The

    The Income effects will be most strongly positive for: (1) Normal goods. (2) Necessities. (3) Superior or luxury goods. (4) Substitutes and much negative for the complements. Find out the right answer from the above options.

  • Q : Threats of SWOT analysis Threats of

    Threats of SWOT analysis: • Possible threat from other banks and other financial institutions • There is always a possible threat of market fluctuations. By this we me

  • 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 : FDI WHAT ARE THE STRENGTH AND WEAKNESS

    WHAT ARE THE STRENGTH AND WEAKNESS OF THE THEORY OF FOREIGN DIRECT INVESTMENT