--%>

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 : Purchasing and consumption of

    The usual household maximizes the utility by spending all its money to purchase and consume a combination of goods which yields: (1) Fundamental physiological requirements and customary wants. (2) Maximum status and the social prestige. (3) Complete satisfaction of al

  • 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 : Maximum Consumer Surplus Assume that

    Assume that you receive $18 worth of ‘jollies’ (that is, utility, satisfaction or pleasure) from the very first hole of golf played on a particular day, and that your extra jollies from succeeding the holes drops $1 for each and every hole played. You shou

  • Q : Type of market when people cannot buy

    Whenever people can’t purchase all of a good they are willing and capable to pay for at present market price, there is surely a market: (1) Price ceiling. (2) Price floor. (3) Shortage. (4) Anomaly.  (5) Surplus. Please

  • Q : Paradox of Value problem I have a

    I have a problem in economics on Paradox of Value problem. Please help me in the following question. The Diamond Water Paradox occurs from the difficulties in differentiating between: (i) Consumer surplus and the total utility. (ii) Total utility and

  • Q : Where is macroeconomics mainly focus I

    I need a good answer on the topic of Economic problems. Please give me your suggestion for problem which is specified below: Macroeconomics focuses mainly on: (i) inflation, unemployment, economic growth, and other aggregate econom

  • 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 : Threats of SWOT analysis Threats of

    Threats of SWOT analysis: • Possible threat from other banks and other financial institutions • There is always a possible threat of market fluctuations. By this we me

  • Q : Relationship between interest rate and

    What is the relationship among interest rate and bond prices? Is there any difference among T-Bills versus Corporate bonds in reaching your assessment? Whenever the stock market falls, where do you assume that most investor place their money and why?<

  • Q : List Which of the following lists

    Which of the following lists includes only capital resources (and ther Which of the following lists includes only capital resources (and therefore no labor or land resources)?