Why do they calculate the multiplicative return like this:
required spending = 6%
inflation = 3.5%
management fee = 0.4%
Required nominal return = (1 + 0.06 + 0.035) * (1 + 0.004) - 1 = 9.94%
They add the inflation?
Why not do this:
Required nominal return = (1 + 0.06) * (1+ 0.035) * (1 + 0.004) - 1 = 10.15%
required spending = 6%
inflation = 3.5%
management fee = 0.4%
Required nominal return = (1 + 0.06 + 0.035) * (1 + 0.004) - 1 = 9.94%
They add the inflation?
Why not do this:
Required nominal return = (1 + 0.06) * (1+ 0.035) * (1 + 0.004) - 1 = 10.15%