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. .

, ,

2. 250. . . 200. . 500. . 10%. ?

. , . . , . : T= , :

T ;

FC ;

AVC ;

P .

T 1 = = = =10 .

10% FC 550. . , .

T 2 = = = =11.

.

3. 30 . TC = q3 6q2 + 18q. Qd = 180-3P, P . .

. AC=MC=P.

AC = TC/ q → AC = q2 6q + 18.

, MC = ∆TC/ ∆q = TC΄ → MC = 3q2 12q + 18.

AC MC :

AC=MC q2 6q + 18 = 3q2 12q + 18 2q2 6q = 0.

q = 3.

P = MC. MC q = 3 → MC = 3q2 12q + 18 = 3*32 12*3 + 18 = 9.

, , :

P = MC = 9.

Qd = 180-3P = 180 3*9 = 153.

Qd = Qs = 153.

: N = Qs/ qs = 153/ 3 = 51.

30 , , 21 .

4. TC = Q3 8Q2 + 20Q + 50. , . ? ? ?

. , , P=min AVC. , . , FC=50, . , , , .

1. .

:

, TVC - , Q .

TVC TC= Q3 8Q2 + 20Q + 50, 50 FC ( ) :

TVC = TCFC = (Q3 8Q2 + 20Q + 50) 50 = → TVC = Q3 8Q2 + 20Q.

:

AVC = TVC: Q AVC = (Q3 8Q2 + 20Q): Q → AVC = Q2 8Q + 20.

2. . AVC:

AVC΄ = (Q2 8Q + 20)΄ = 2Q 8.

AVC΄ Q AVC:

2Q 8 = 0, Q = 4.

Q = 4 min AVC:

AVC = Q2 8Q + 20 → min AVC = 42 8*4 + 20 = 16-32+20 = 4.

3. , P=min AVC = 4.

 

4. .

TC (4) = Q3 8Q2 + 20Q + 50 = 43 8*42 + 20*4 + 50 = 66..

TR = P * Q = 4*4 = 16..

(4) = TR - TC (4) = 66 - 16 =- 50 = FC.

→ TVC (4) = Q3 8Q2 + 20Q = 43 8*42 + 20*4 = 16..

TR = 16. ., TR = TVC4. , (4) FC(4) = - 50.

, , , , FC(0) = - 50.

5. MR(=P)=MC. MC MC = min AVC = 4.

6. AVC 4. min AVC Q = 4. MR(=P) = MC. , , Q = 4 , . :

Q=5. TC(5) = 75; TR = 4*5.=20; =TR(5)-TC(5)=75-20= -55.

Q=3. TC(3) = 65; TR = 4*3.=12; =TR(3)-TC(3)= 6 5-12= -53.





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