-2
-2 .
2009
: - p(y)
y - , p(y).D y=Q
: - ...
( y ) = p( y ) y c ( y )
= TR TC y* ?
: - .
MR(y*) = MC(y*)
: p = a by ( ) TR = py ( ) TR = ay - by2 : MR(y) = a - 2by < a - by = p y > 0
: P
MR= a - 2by < a - by = p y > 0
P = a - by a
a/2b
y a/b MR = a - 2by
: - MC = MR
MR
p = p + y < p y AC
: P MC AC Pm
ym
MR
y
:
TR = py + ypy 2 . ?1) - /py/ 2)
: TR = py + yp ... MRMR TR = y TR = y
p = p + y y y p = p 1 + py
MR
: MR TR = y y p = p 1 + py
=
1
=
MR
TR = y
1 = p 1 +
: MR = MC
R 1 MR= = p1+ = MC > 0 y . < -1 || 1 .
: P MC . ( )
MC MR
y
: - , , 50% , . 50% .
: P ... Ybt MC=MR
MCbt ybt
MR
y
: P Pbt = .
Pbt MCbt ybt
MR
y
: P MCat MCbt ybt
Pbt
MR
y
: P MCat MCbt ybt
Pbt
MR
y
: P /Ppt/ Ppt Pbt MCat MCbt yat ybt
MR
y
: / / 1:
P = a bY 2: MC = C 3: ,
= TR TC
: / / 4:
= PY CY 5: P=a-bY
= (a bY )Y CY ...
: / / 6:
= Ya bY CY 7:
2
{Y }
' = a 2bY C = 0
: / / 8: (Ybt)
2bY = C a
Ybt
aC = 2b
: / / 9: Ybt (Pbt)
Ybt P = a - bY
aC = 2b
aC Pbt = a b 2b
: / / 10:
aC Pbt = a b 2b ba + bC Pbt = a + 2b a+C Pbt = a + 2 b b
: / /a C + Pbt = a + 2 2
C 1 Pbt = a + a + 2 2
1 C Pbt = a + 2 2
a+C Pbt = 2
: / / 11: C = MC C = MC + t
a+C Pbt = 2a+C +t Pat = 2
t/2 , Pat
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