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, , .

. , , .

, , , (market equilibrium), . 11. ( . qulbrum ). ֳ, , (equilibrium price) (). ʳ , , (equilibrium quantity)(QE).

 

. 11. г

 

E = PS = D,

E ;

PS ;

D .

³, Q = QS = QD,

Q ;

QS ;

QD .

(partial market equilibrium), , (general equilibrium), . .

. QD = a bP, QS = c + dP, a, b, c, d , Q = a bP = c + dP.

,

 

.

 

г , 䳿 . , . , , () (consumer surplus). , , (. 12). , , , () (producer surplus) (. 12), (economic profit). , , , , , (. 15).

(social surplus), . , , , .

. 12. ,

 

. , (. 12 ), (. 12 ).

. 12 , , , . ( , , , .). ֳ : ( ) ( , ) . , ( ()), , , . , .

. 12 . ֳ . 12 .

г , . , . , .

. . , , ( (excess demand)), . ( (excess supply)), , .

. (Q 2 Q 1 . 13 ), (P 2 1 . 13 ). . , . , . () .

 

. 13.

( . . )

 

. , . .

, , (cobweb model) (. 14). (, ), , , . , ( ). .





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