--%>

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 : Explain Product Market Equilibrium. To

    To begin with, let us recall our three-sector product-market equilibrium model given as C + I + G = C + S + TTo this three-sector model, we now add the foreign trade-the exports (X) and imports

  • 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 : Why government taken as capital receipt

    Why the borrowings by Government are taken as capital receipts?

  • Q : Opportunity costs of consumption

    Individuals maximize the satisfaction whenever the marginal utilities of all goods are: (i) Precisely proportional to the consumer’s income. (ii) Maximized. (iii) Precisely proportional to the opportunity costs of consuming them. (iv) Equivalent

  • Q : If the MPC is .70 and investment

    If the MPC is .70 and investment increases by $3 billion, the equilibrium GDP will:

  • Q : What is Bank rate Bank rate : This is

    Bank rate: This is the rate at which the central bank loans money to commercial bank.

  • Q : Subjective worth of Consumer Surplus

    The consumer gains from being capable to purchase at a single price rather than paying all that the particular quantity of the good is subjectively worth are: (i) Adverse selections. (ii) Market exploitation. (iii) Consumer surpluses. (iv) Moral hazards.

  • Q : Shifting of demand curve due to new

    Assume that the launch of Microsoft Xbox 360 moved the demand curve for Sony PlayStation 2 games from D0 to D1 throughout similar period if new game designers enter into this market and hence supplies of PlayStation 2 games shifted S0 to S1. The market equilibrium: (1

  • Q : Employment Effect Fiscal policy

    Fiscal policy measures used for achieving full-employment level of output and price include increase in the government expenditure and cut in tax rates. A cut in tax rates eliminates only the adverse effect of high tax rates, whereas an increase in government expendit

  • Q : Illustration of arbitrage The

    The illustration of arbitrage takes place when: (1) Enterprising students purchase used textbooks much cheaply on E-Bay and sell them to another students at lower prices than bookstore charges. (2) Ivan purchases a stock when it is cheap and sells it