A steam generation system at a biomassfueled power plant uses an electrostatic precipitator (ESP) to clean its gaseous effluents
. The power plant has consistently made use of the same type of ESP over the past several years. The installed cost of a new ESP has been relatively constant at $80,000. Records of operation and maintenance expenses indicate the following average expenses per year as a function of the age of the ESP. The MVs of the ESP are also reasonably well known as a function of age. Determine the best time to replace the ESP if the MARR
is 15% per year
is 15% per year
1 answer:
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Answer:
$13.64
Explanation:
Given:
Exercise price,X = $100
Current price = $100
Value when price is up, uS = $120
Value when price is down, dS= $80
Risk free interest rate = 10%
First calculate hedge ratio, H:
Where,
Cu = uS - X
= 120 - 100
= $20
A risk free portfolio involves one share and two call options.
Find cost of portfolio:
Cost of portfolio = Cost of stock - Cost of the two cells.
= $100 - 2C
This portfolio is risk free. The table below shows that
_______________
Portforlio 1:
Buy 1 share $80; Write 2 calls: $0; Total: ($80 + 0) $80
____________________
Portforlio 2:
Buy 1 share: $120; Write 2 calls: -$40; Total: ($120 - $40) $80
Check for oresent value of the portfolio:
Present value
Value = exercise price - value of option
$72.73 = $100 - 2C
Find call option, C
Call option's value = $13.64