--%>

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 : Meaning of SWOT Analysis SWOT Analysis

    SWOT Analysis: SWOT analysis is a powerful tool to know the strengths, weaknesses, opportunities and threats for any company. The company itself does SWOT analysis so as to know where they are standing vis-a-vis their competitors and what are the area

  • Q : Elasticity of brain power When doubling

    When doubling your viewing of soap operas to 16 hrs per week reasons your IQ score to drop/fall from a mastermind level of 140 to a sluggish 70, your TV elasticity of brain power will be: (i) + 1.0. (ii) zero. (iii) – 1.0. (d) +0.5. (e) -0.5.

  • Q : How banking evolved into the

    Give a short history of how banking evolved into the sophisticated operation. Start first with the Goldsmith and sum up with the Banking system which we experience nowadays.

  • Q : Levels of income with no exceptions for

    A flat rate income tax for all levels of income along with no exceptions would be taken as a: (i) proportional tax. (ii) progressive tax. (iii) regressive tax. (iv) common tax. Can anybody suggest me the proper exp

  • Q : Speculators actions when they are right

    When speculators are right, their actions: (1) Cause already depressed prices to drop/fall further. (2) Raise the risks to another firm of doing business. (3) Prevent price refuses from their peaks. (4) Reduce both the phase of prices and their volatility across time.

  • Q : Stage of the business cycle What stage

    What stage of the business cycle is our economy experiencing at present time? proof your answer.

  • 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 : IS-KM Model with classical supply

    discuss with the help of IS-LM model why money has no effect on output in classical supply case

  • Q : Reallocation of resources through budget

    Reallocation of resources: In case, the market economy fails or does not attain the desired social objectives, the government has to interfere via budget and reallocate resources accordingly. Through its budgetary

  • Q : Why businessmen prefer current bank

    Describe why businessmen mostly wish to open current account in bank?