( , , , Net Present Value, NPV) - . :
m - m- ; - m- () m .
, .
, , .
. , , .
, , :
- , ; -, , () , , .
, , . , , .
. - .
2) (IRR).
(internal rate of return, IRR), .. , .
IRR = r, NPV = f(r) = 0
: IRR > CC. ; IRR < CC, ; IRR = CC, , .
: , CC ( , ). IRR, , .
: IRR , .