--%>

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 : Define revenue receipts Define revenue

    Define revenue receipts. Write the groups in which they are categorized. Answer: Any receipts that do not either make a liability or lead to reduction in assets is

  • Q : Evaluation of net present value Explain

    Explain evaluation of net present value (NPV) and internal rate of return (IRR) in brief?

  • Q : Calculating National Income Let suppose

    Let suppose NDPFC is Rs. 1,000 crores, and NFA is Rs. (--) 5crores, then what will be national income (NNPFC)? Answer: NNPFC = NDPFC+NFA = 1000 + (-5) = Rs. 995 crores.

  • Q : Macroeconomic perspective for Economic

    A family’s newly constructed home can produce the service of shelter across several years, therefore from a macroeconomic perspective, this is most reasonably classified as: (i) economic capital. (ii) social infrastructure. (iii) market capitalization. (iv) a fi

  • Q : Surplus of AD over AS-Inflationary gap

    Does a surplus of AD over AS always entail a condition of inflationary gap? Answer: No. Inflationary gap takes place only if AD > AS equivalent to full employmen

  • 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 : Market Economy Explain the statement "

    Explain the statement "Hypothes is the basic short run and long run behaviors of the airline industry in a market economy".

  • Q : Important issues in Macroeconomics to

    Macroeconomics is primarily focused on issues about: (w) economy extensive aggregate variables as like national income. (x) the structure of economic activity quite than its level. (y) resource allocations through households and business firms. (z) po

  • Q : Market price decrement according to

    When heroin were legalized, in that case the: (w) market price of heroin would drop considerably. (x) demand would raise although supply would decrease. (y) demand would decrease but supply would increase. (z) price of cocaine would raise.

    Q : What are various economic growth

    Economic growth is generally defined as a sustained increase in per capital national output over a long period of time. It implies that for economic growth of a nation, the rate of increase in its total output must be greater than the rate of population growth. It ma