--%>

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 the net benefits Whenever

    Whenever consumers paid an amount for water which reflects the value of the net benefits they obtain from consuming it, water would outcome: (1) Maximum consumer excess. (2) Zero consumer excess. (3) Total revenue equivalent to variable cost. (4) Zero

  • Q : GDP gap "The economic cost of

    "The economic cost of unemployment is measured by the GDP gap." Explain this statement. ?

  • Q : Explain the term Macroeconomics

    Macroeconomics is a study of: (1) the economy as an entire or in the aggregate. (2) worldwide economic problems of individual households. (3) interactions among firms and households in one exact market or industry. (4) the rising income inequality wit

  • Q : Problem onto marginal tax rates A

    A prosperous person who made higher and higher incomes yearly would possibly benefit most from: (w) proportional tax system. (x) progressive tax system, much like the one in place today. (y) regressive tax system. (z) fixed percentage tax system.

    Q : Cost-push inflation Describe cost-push

    Describe cost-push inflation and its major source.

  • 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 : About macroeconomics Do you think that

    Do you think that macroeconomic policy should be designed to achieve a measured unemployment rate of zero? Why or why not should this be the case?

  • Q : Closed economy Hello. I need help with

    Hello. I need help with my assignment, I was sick and lost alot of time.My submission deadline is tomorrow i need your help i have attached the questions Thanks in advance

  • Q : Price elasticity of demand for DVD games

    In this figure shown below, the price elasticity of demand for DVD games among prices of $30 and $40 is nearest to: (i) 7/6. (ii) 1/2. (iii) 3/7. (iv) 7/3. (v) 1/3.

    Q : Shifting of market problem When this

    When this market starts in equilibrium at point e on S0D0 and then young American families rousingly “inherit” furniture as their baby-boomer parents shift into smaller retirement homes, then this market will tend to shift in the direction of: (i) point i.