, ( ) [1]. . , ( ). , . (, .), .
(2.20)
, ( - ) :
(2.21)
(2.20) (2.21) Dt ; Pt-1 - ( ), Pt - .
.
. 1000 . 10% . 976 . : 1000 * 0.10/976 = 0.10246, 10.246%.
, , . .
, : (2.11') (2.14) r.
(YTM Yield to Maturity). , , () , " , , " [ Kohn ]. , , . , YTM (2.15) . . . (2.15) , . (., , [ ],[ Kohn ], ).
|
|
. 1000 ., 1041 . 10% , . 12 .
. , YTM :
1041 = 50/(1+ YTM) + (50+1000)/(1+ YTM)2,
YTM = 0.0286. YTM YTM
(1+ YTM)2 = 1+ YTM,
5.80%.
, ,
1041 = (100+1000)/(1+ YTM),
5.67%.
(2.17). (2.19) r.
(2.22)
, () .