Wade Pfau

Wade Pfau is a professor at The American College of Financial Services and one of the most prolific researchers on retirement income and safe withdrawal rates. His empirical work has challenged and refined the traditional "4% rule" by showing that historical US market conditions may not be representative of future outcomes, particularly in low-interest-rate environments. He has also researched the role of annuities, reverse mortgages, and different asset allocation approaches in retirement portfolios. Pfau's blog "Retirement Researcher" is widely read by financial advisers. His work on sequence-of-returns risk — documenting that the order in which investment returns occur matters as much as their average level for retirees drawing down a portfolio — has been foundational for retirement planning practice. His research also extended the withdrawal rate literature internationally, showing that the 4% rule was specific to the historical US experience and that investors relying on global equity markets would need to plan more conservatively. These findings have shifted practitioner consensus toward dynamic withdrawal strategies, product combinations, and glide path designs tailored to individual retirement income needs.