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# Finance: Perfect Competition and the Supply Curve & Monopoly

Problems: 8.2, 8.3, 8.4, 8.5, and 8.12

10.1, 10.2, 10.3, 10.4, and 10.12

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## Answer file is attached for chap 8 only. Feel free to contact for any further assistance.

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8.1

= (0.1)(-50%) + xxxxxxxxxx x (0.4)(16%) + xxxxxxxxxx + xxxxxxxxxxx

xx xxxxxxx

(2 x xxxxx – xxxxxxxxxxxxx + (-5% – 11.40%)2(0.2) x xxxx – xxxxxxxxxxxxxx

x + xxxx – xxxxxxxxxxxxx x xxxx – 11.40%)2(0.1)

(2 x xxxxxx ( x 26.69%.

CV = xxxxxxxxxx = 2.34

8.2

xxxxx xxxxxxxxx xxxxx x xxxxxxxxxxxxxxx \$75,000��Weighted xxxxxxx xxxx xx xxxxx xxxxxx 35,000 x xxxxxx x xxx x xxxxxxxxxxxxxxxx average xxxx of xxxxxx stock: 40,000 / 75,000 x xxx x 0.75�= xxxx portfolio xxxx��

xxx

r = rRF x (rM – xxxxxx

= 6% x (13% – xxxxxx

= 10.9%.

8.4

x xx ; xxx = 5%; xxx = xx b = 1.2.

Return on xxxxxxx

Expected xxxxxx xxx market = xxxxxxxx xx 5 x mkt xxxxxxx xx 6 = 11%

xxxxxx xx xxxxxxx

r = xxx + xxx – xxxxxx

r = 5% x xxxxxxx

r = xxxxxx

xxx

8.5(a)

x xxxxx xxx x xxx RPM = xx x =? .

r = xxx x xxx – rRF)b

11%= 7% + (4%)b

xxx xxx

xxxxxxx

x =?; rRF x 7%; xxx = xx x xxx

xxx rRF + (rM – xxxxxx

x = 7% x xxxxxx

x = xxx

8.12(a)

x =?; xxx = xxx xxx = 5% x =1.3

r = rRF + (rM – xxxxxx

x x xx + xxxxxxx

x = xxxxx

xxxx that (rM – rRF)=5% represents xxx market

risk premium xxxxx xx xxxx the slope)

xxxxxxx

xxx slope xxxxxxxxx xxx same xxxxx risk premium xxx xxx changed

xx xxx x xxxx

r x 10% x (5%)1.3

r = xxxxx

If xxx = 8%

r x 8% + xxxxxxxx

r x xxxxx

xxxxxxxx

xxx xxx 9%; RM = 16% b xxxx

x = 9% x (7%) xxx

x x 18.1%

(2) xxx 9%; xx x 13% b =1.3

x x xx + (4%) 1.3

r x 14.2%

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## online test ch-13

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## the answer is attached file

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8.2

Beta xx weighted average:

xxxxxxxxxxxxxxxxxxx + xxxxxxxxxxxxxxxxxxx

0.467 x0.8 x xxxxx x 1.4=0.3736 +0.7462= 1.12

xxx

E(R) x xxx + βstock (Rmarket – xxxx

xxxx = the xxxxxxxx rate of return,

RFR x xxx risk xxxx xxxx

βstock x xxxx xx xxx xxxxx

xxxxxxx x xxxxxx of the market as a xxxxx

xxxxxxxx – xxxx x the xxxxxx xxxx premium,

=0.0 6 +0.7(0.13-0.06)=0.06+0.049=0.109=10.9%

8.4

xxxxx the above xxxxxxx

Rmarket x xxxxxx xx the market as a whole

(Rmarket – xxxx x xxx market xxxx premium,

xxxxxxxx – 0.05) x 0.06 = 11%

= 0.06 x xxx (0.11-0.06)= 12%

xxx

xx find xxxx

xxxxx xxxxx xxxxx 0.04)= 0.04= beta xxxxxxx beta =1

xx

x 0.07+ xxxxxxxx 13%

8.12 Suppose Rrf= 9%, Rm=14% xxx b1=1.3

xx xxxx is Ri, the required xxxx of return xx stock I x E(R )

xxxx = xxx + xxxxxxx (Rmarket – RFR)

E(R) = the xxxxxxxx xxxx of xxxxxxx

xxx x the risk xxxx xxxx

xxxxxxx = beta xx xxx stock

Rmarket = xxxxxx of the market xx x xxxxx

(Rmarket – RFR) x xxx xxxxxx risk premium,

= xxxxx 1.3 (0.14-0.09)=15.5%

b) xxx slope of the SML xxxxxxxx the xxxxxx of xxxx aversion in xxx economy. xxxxx of SML xx xxxx xxxxx xx slope is constant, xxxx xxxxxxx xx constant xx xx

1) 0.10+ xxx xxxxxxx 16.5%

xx 0.08+ xxx xxxxxxx 14.5%

c) xx xxxxx is not constant, Risk xxxxxxx xxxx xxx be constant at 5%

1) x 0.09+ 1.3 xxxxxxxxxxxxxxxxx

xx x 0.09+ xxx (0.13-0.09)=14.2%

Chapetr-10

10.1

After –tax xxxx of xxxx = rd(1-t)= 10(1-0.35) =6.5%

xxx

xrpxx xx P= xxxxxxxxxx = 8%

3.x

WACC= wd xxxxxxx x xx

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