RE: Off take agreements31 Aug 2020 12:36
"There are risks in the CPR, of course, Mirasol, that's why they use a discount rate of 10% pa to arrive at the net present value at 01/01/20."
Economics 1.02 - the Discount Rate for NPV has nothing to do with the risk - it's to do with the "cost" of money - you discount future income supposedly at the cost of finance to get a number NPVx which allows you to compare different investments.. Different companies may use different rates- years back oil companies would use 15% or even 20%. Generally it's a rate decided by the BoD - an investor may use their own rate to suit their own circumstances.
CPR risk is the probability number P90, P50, P10 - which should be generated using a Monte Carlo program. So a P90 of £ 10 million says, using the inputs determined from the data and some experience , there is a 90% chance that they will make £ 10mm and there is a 10% chance they won't.
Similar with P50 and P10 - the bigger numbers are less likely - which is common sense of course