Hello, for part a) When calculating the present value for year 5 onwards, why is the discount factor 0.683 ? Since it is for year 5, shouldn’t it be 0.621 ? Thanks
Had the flow been from time 1 onwards then the formula would have given the PV at time 0.
Here the flow is from time 5 onwards, which is 4 years later, and so the formula gives the PV at time 4 (i.e. 4 years later as well). So to get the PV ‘now’ we need to discount the result for 4 years.