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() , . , () $100 $100 . $100 $100 + . , , . ( ) ( ). NPV, .
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, . :
. A, 90%, $140 10%, $10. B, 90%, $1,250 10%, $10,000. , .
?
A
NPV1 = 140*0.9 10*0.1 = 126 1 = 125 $
90%, $140 10%, $10.
B
NPV2 = 1,250*0.9 10,000*0.1 = 1.125 1000 = 125 $
90%, $1,250 10%, $10,000.
, .
?
, , . , , B . .
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u (x) = 1 - exp (-x/rho), rho - .
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:
1) (Total construction costs)
2) (Additional capacity - units/year)
3) (Estimated cost of production per unit)
4) (Estimated average revenue per unit)
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, 10-8 , 100 , . , ALARA (As low as reasonably achievable) , .
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1) : 10-7 N=10 , 10-9 N=100 ( );
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3) : ( 10-5 N=10 , 10-7 N=100 ).
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