Steven's second chart above demonstrates why a sustainable withdrawal amount is lower than the average rate of return on a portfolio.
Over the period, the MSCI World Index returned pretty close to 5% pa. However, if you had taken 5% of the initial balance and withdrew the same amount every year, the portfolio would have completely bombed out within 20 years.
Why?
Because the sequence of returns was lousy. There simply wasn't enough left within the portfolio to sufficiently recover from the earlier market drawdowns.
It's also worth noting that Steven hasn't adjusted the amount withdrawn every year for inflation. That makes a significant difference - the % change in the CPI from Jan 2000 to May 2020 was 40.3%.
Unless a retiree is prepared to accept a huge variation in the amount they can safely withdraw from an ARF every year, having an all-equity portfolio in retirement is probably unwise.
Over the period, the MSCI World Index returned pretty close to 5% pa. However, if you had taken 5% of the initial balance and withdrew the same amount every year, the portfolio would have completely bombed out within 20 years.
Why?
Because the sequence of returns was lousy. There simply wasn't enough left within the portfolio to sufficiently recover from the earlier market drawdowns.
It's also worth noting that Steven hasn't adjusted the amount withdrawn every year for inflation. That makes a significant difference - the % change in the CPI from Jan 2000 to May 2020 was 40.3%.
Unless a retiree is prepared to accept a huge variation in the amount they can safely withdraw from an ARF every year, having an all-equity portfolio in retirement is probably unwise.