Points for consideration
Changing the age to a decimal, and then subtracting 1% to determine the starting income level, seems to be a relatively accurate way of ensuring an escalating income of 5% per annum, until roughly age 80. However, roughly 10% of the South African population do live beyond age 80, and where people have access to better medical care, this percentage is a lot higher.
By taking on more risk, income longevity becomes less of a concern for the broader population as very few people do live up to the age of 90.
For clients taking on a moderate aggressive risk, in line with most balanced funds, this is a suitable formula to determine the starting income.
However, the volatility of a moderate aggressive portfolio not only makes the investment journey less comfortable for the client – due to the ups and downs of market movements – but also holds real risk over extended periods when markets are down, and this manifests in the sequence risk of the portfolio.
Therefore, if one uses this simplified formula to determine the initial income level, it is imperative to find a solution where a return of inflation plus 5% is possible, but at a volatility level similar to a cautious portfolio. This will allow for extra growth while protecting the client against sharp drawdowns, and, over time, sequence risk.
It is not possible to build a portfolio which offers these characteristics by using only normal collective investments, even if the portfolio is properly diversified. Once the portfolio has exposure to sufficient growth assets, the volatility and accompanying risks will follow. One, therefore, needs to consider alternative types of funds that have different return profiles, such as hedge funds (which can give a positive return during a crisis) as well as funds with underlying guarantees that smooth out the volatility. By combining funds such as these, clients have the opportunity to achieve a real return plus 5%, however, the volatility and sequence risk is lowered to that of a cautious portfolio.