.


:




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(demand) , . , .

, , ( ) . , . (law of demand).

, , :

, ;
(diminishing marginal utility) ,
(income effect) , - . , [4].
(substitution effect) , .

, , . (demand curve), .

, , . , , . .

, . [5]:

E(DP) = (DQ/Q)/(DP/P) = ( )/( )

E(DP) ;
DQ ;
DP .

, , 2. , 10% ( ) 20%. . . , ( , , ).

, , . :

E(DP) = DQ/(Q1+Q2)/2 / DP/(P1+P2)/2

, E(DP) > 1 ( ). , ( ) ( ) , .

, E(DP) < 1 ( ). , ( ) ( ) , .

, E(DP) = 1 ( ). , ( ) ( ) .

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

, . . , , . -, .

, 5 3 ( ) 60 100 .

:

(60-100)/((100+60)/2) / (5-3)/((5+3)/2) = -0.50/0.25 = -2.0

2,0 , 10% ( ) 20%. . . .

. , 5 3 ( ) 90 100 .

(90-100)/((100+90)/2) / (5-3)/((5+3)/2) = -0.11/0.25 = -0.44

0,44 , 10% ( ) 4,4%. , . .

:

- , ( - ).
( , ) . ( , , ).
, .
, , . , . .

  1. . . . : , 1998.
  2. Mickey C. Smith, Pharmaceutical Marketing, Strategy and Cases, Pharmaceutical Products Press, 1991.
  3. Philip Kotler, Marketing Management, Prentice Hall, 1997,
  4. . . . . 1999. 14, 1516, 17, 18.
  5. ., ., ., . . , 1997. . 3638.

 





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