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@David Harper CFA FRM Hi, I am really confused about the formula of the lease rate that is given in the book (page 139) and the one that is given in the study notes (page 12, P1, T3). the reason for my confusion is when I followed the formula from the book, I got a different result compared to...

Suppose that the default rate for a portfolio of consumer loans over the past 10 years has been 1%, 9%, 2%, 3%, 5%, 1%, 6%, 7%, 4%, and 1%. What are the maximum likelihood estimates of the parameters in Vasicek’s model? Answer: The maximum likelihood estimates for the probability of default and...

Hi, Suppose that observations on an exchange rate at the end of the past 11 days have been 0.7000, 0.7010, 0.7070, 0.6999, 0.6970, 0.7003, 0.6951, 0.6953, 0.6934, 0.6923, and 0.6922. Estimate the daily volatility using both approaches in Section 10.5 1. what is the standard formula of SD...