Question

**Suppose a market’s demand and supply curves take on the
following characteristics:**

QD = 100 – 2.9(P) + 0.93(Y – T)

QS = 2(P)

where:

QD quantity demanded

QS quantity supplied

P price of the commodity

Y personal income

T personal taxes

**Given the above model, please answer the following
questions:**

**1.** What is the market-clearing price and
quantity if personal taxes (T) equal zero and personal income (Y)
is $400?

**4.** If we added the real wealth term “+0.01(W)”
to the demand equation, how much would your answer change in
question 1 (price and quantity) if the level of real wealth was
$3,000 (i.e., W = 3,000)? Draw a graph depicting the effects this
has upon market equilibrium compared to your answer to part 1

Answer #1

QD = 100 – 2.9(P) + 0.93(Y – T)

QS = 2(P)

1) T (tax) = 0 & Y= income= 400

so, QD =QS

therefore, 100 – 2.9(P) + 0.93(Y – T) = 2(P)

100- 2.9 P + .93* 400 = 2P (solve this)

P= 96.32 (ANSWER)

4) A new term has to be added that is .01 W.

So, new equlibrium is

100 – 2.9(P) + 0.93(Y – T) + .01W =2P. (where W= 3000)

100- 2.9P + .93*(400-0) +.01*3000 = 2P (solve this)

P = 102.44 (Answer)

Due to weath the QD line shifts upward where as QS line is still the same , hence the price increase from 96.32 to 102.44. (Image is not uploaded due to technical gliches)

Suppose a market’s demand and supply curves take on the
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QD = 100 – 2.9(P) + 0.93(Y – T)
QS = 2(P)
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QS quantity supplied
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T personal taxes
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1. What is the market-clearing price and
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