892                                                    25

dp = arp - [/ + ( - ar f )ftp ].                       (25.13)

     (3    
 (characteristic line)  '  :

rp-rf=ap+Pp(t-rf)                       (25.14)

     ,   ,
          -
 .    (^   )   
,  (/- -  ) -   .  ,   (-
 )     ,      .

      , 
     () . 25.1   16- -
.         
3,93%.   (25.8),  ,     
1,13.      16     -
,   , ,   ,    
  (      1,    
     ).

         -
    . 25.4.      (1,13 
3,93),   FF.    (25.13)   -
       SML:

? = arp ~ [/ + ^ - / ) 1 =
=3,39%-[2,23%+(4,88%-2,23%) 1,13]=
=-1,29%.

   FF    SML,    
,        -
5.   (25.14),   
    :

^-/7=1,29%+1,13(^-/).
 . 25.5  ,   6.

    ,   -
       :

1.         -
 ,     .

2.         
  (25.9)  (25.10).

3.        (25.8).

4.        (25.13).

5.       
         (25.14).

       ,  
  ,     
   .    
   (simple linear regression)      -
     ,   . 8  17.