--%>

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 : What is Equilibrium quantity

    Equilibrium quantity: It is the quantity supplied and the quantity demanded at equilibrium price.

  • Q : Why value of MPC is not greater than one

    Why the value of MPC is not greater than 1? Answer: This is because change in consumption can never be more than change in income.

  • Q : Main concerns of microeconomics Can

    Can someone explain/help me with best solution about problem of microeconomics in economic... Main concerns of microeconomics would consist of: (w) rates of inflation. (x) consumer options. (y) rates of unemploymen

  • Q : Describe open market operations

    Describe open market operations? What is its consequence on availability of credit? Answer: Open market operations signify the purchase and sale of government secur

  • Q : Determining bank problem Which of the

    Which of the given is a bank? a) Post office saving banks (b) LIC (c) UTI (d) IDBI.

  • Q : Why tax considered as revenue receipt

    Why is tax considered as revenue receipt? Answer: Since tax neither makes a liability for government nor decreases assets of the government.

  • Q : Help If the price of K declines, the

    If the price of K declines, the demand curve for the complementary project J will:

  • Q : IMF? In saying that the present system

    In saying that the present system of floating exchange rates is managed we mean that: IMF officials determine exchange rates on a day-to-day basis. countries that allow their exchange rate to move freely will lose their borrowing privileges with the IMF. the value of any IMF member's currency

  • 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 : Microeconomics concepts as a primary

    Write a 3 page paper using microeconomics concepts as a primary mode of analysis.  Your paper should use 1.5 line spacing, a 12 point font, and 1inch margins.  Proof read your paper.  You will lose 5 percentage points per day for each day past the