--%>

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 : Illustration of equal marginal advantage

    Can someone please help me in finding out the accurate answer from the following question. Shoppers who shift among checkout lanes until it emerges that all register lines are probable to be equally time-consuming are trying to verify to the law of: (i) Equivalent mar

  • Q : Public debt How does an internally held

    How does an internally held public debt differ from an externally held public debt?

  • Q : Signals that guide economic decisions

    In market economies, what are the signals which guide economic decisions?

  • Q : State the Income Effect Can someone

    Can someone please help me in finding out the accurate answer from the following question. The Income effects are: (i) Adjustments people make since the purchasing power of the given income is modified whenever prices change. (ii) Adjustments people make since the pur

  • Q : Export business prefer rising or

    Would export businesses choose a rising or declining dollar? Would it be similar for a European tourist on a budget and visiting the Grand Canyon? Explain your answer.

  • Q : Problem on rational consumption

    Whenever you dine at an “all-you-can-eat” buffet, the rational consumption prototype is to carry on eating till: (1) The restaurant goes bankrupt. (2) You have eaten as much food as it would encompass cost had you made your own meal at hom

  • Q : Tax when consumer pay high price When a

    When a tax on goat cheese is completely paid by consumers via higher prices, then the tax has been: (i) alleviated. (ii) Forward shifted. (iii) Backward shifted. (iv) Actualized. (v) Randomized. Can someone help me in getting throu

  • Q : What is Supply schedule What is Supply

    What is Supply schedule and how it is related to supply curve?

  • 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 : 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.