I second that...same sourceI personally feel that economic capital is only used to cover unexpected loss and think I read it somewhere in the schweser book.
Inputs??Give me it's input and I'll give you a good estimate...otherwise we're all wasting our time at it
No.
I mean to say that instead of finding the answer, you could use the choices to find the question.
If you picked 0.05,
You could then calculate portfolio variance using equal weights as,
square(0.5) * 0.25 + square(0.5) * 0.04 + 2 * 0.05(chosen answer) * rootOf(0.25) * rootOf(0.04) * 0.5 * 0.5
Which will come out to about 27.3% as I found earlier.