Hey all, need a little bit of help understanding some SOA Sample WA topics I can't quite wrap my head around:
#4 Part A ii
Deriving Kolmogorov's...how do you get from line 3 of the solution to line 4...in line 4 you subtract tPx(00) and divide by (h)...how do you mathematically accomplish this?
#6 Part A ii
A shorter lifetime for Jim and Amy implies a positive covariance, how is this so?
#8 Part A
Why is the decrement due to death straight up = 12%? I calculated the decrement due to death using the UDDAST formula to account for dependent probability for lapse and got (.12)(1 - .1/2) = 11.4%...why is this wrong?
#16 Part C
The solution's note mentions that an interest rate lower than the risk discount rate would release profit sooner, thus increasing the Net Present Value...I can't visualize this, how exactly does a lower interest rate release profit sooner?
#4 Part A ii
Deriving Kolmogorov's...how do you get from line 3 of the solution to line 4...in line 4 you subtract tPx(00) and divide by (h)...how do you mathematically accomplish this?
#6 Part A ii
A shorter lifetime for Jim and Amy implies a positive covariance, how is this so?
#8 Part A
Why is the decrement due to death straight up = 12%? I calculated the decrement due to death using the UDDAST formula to account for dependent probability for lapse and got (.12)(1 - .1/2) = 11.4%...why is this wrong?
#16 Part C
The solution's note mentions that an interest rate lower than the risk discount rate would release profit sooner, thus increasing the Net Present Value...I can't visualize this, how exactly does a lower interest rate release profit sooner?
SOA WA #4,6,8,16
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