<Case
Case & Fair:Chapter 8 #5&#11
5(1) ¡@ TR TC TFC TVC Operating profit ¡@
A $1,500 $1,500 $500 $1,000 $500 Stay
B 2000 1500 500 1000 $1,000 Stay
C 2000 2500 200 2300 -$300 Shut down
D 5000 6000 1500 4500 $500 Stay
E 5000 7000 1500 5500 -$500 Shut down
F 5000 4000 1500 2500 $2,500 Stay
5(2) ¡@ TR TC TFC Profit ¡@
A $1,500 $1,500 $500 $0 Expand
B 2000 1500 500 $500 Expand
C 2000 2500 200 -$500 Exit
D 5000 6000 1500 -$1,000 Exit
E 5000 7000 1500 -$2,000 Exit
F 5000 4000 1500 $1,000 Expand
11a Output TFC TVC TC AVC ATC  MC
0 $300 $0 $300 $0 $0 $0
1 300 100 400 100 400 100
2 300 150 450 75 225 50
3 300 210 510 70 170 60
4 300 290 590 72.5 147.5 80
5 300 400 700 80 140 110
6 300 540 840 90 140 140
7 300 720 1020 102.8571 145.71429 180
8 300 950 1250 118.75 156.25 230
9 300 1240 1540 137.7778 171.11111 290
10 300 1600 1900 160 190 360
11b Price QS TC TR Profit
$50 2 $450 $100 -350
70 3 510 210 -300
100 1 400 100 -300
130 5 700 650 -50
170 6 840 1020 180
220 7 1020 1540 520
280 8 1250 2240 990
350 9 1540 3150 1610
11c Price MarketQS MarketQD
$50 200 1000
70 300 900
100 100 800
130 500 700
170 600 600
220 700 500
280 800 400
350 900 300
11d Fill in the blanks: From the market supply and demand schedules in c., the equilibrium 
market price for this good is $170 and the equilibrium market quantity is 600.
Each firm will produce a quantity of 6 and earn a profit equal to $180.
11e Yes. At the quantity of 6, SRMC=SRAC=LRAC for each firm.
So all the equilibrium will remain the same, the equilibrium market price for 
this good is $170 and the equilibrium market quantity is 600.And each firm earns a profit equal to $180.