William Bengen established 4% as the initial safe withdrawal rate in retirement more than 30 years ago. But in subsequent research, he has concluded that 4% is likely much too low. That research is thoroughly explained in his new book, “A Richer Retirement: Supercharging the 4% Rule to Spend More and Enjoy More.”Bengen joined Motley Fool retirement expert Robert Brokamp to discuss:- how factors such as market valuation and inflation affect the safe withdrawal rate- whether retirees should decrease or increase their allocation to stocks as they get older- Bengen’s suggested withdrawal rate for current retireesHost: Robert BrokampGuest: William BengenEngineer: Adam LandfairDisclosure: Advertisements are sponsored content and provided for informational purposes only. The Motley Fool and its affiliates (collectively, “TMF”) do not endorse, recommend, or verify the accuracy or completeness of the statements made within advertisements. TMF is not involved in the offer, sale, or solicitation of any securities advertised herein and makes no representations regarding the suitability, or risks associated with any investment opportunity presented. Investors should conduct their own due diligence and consult with legal, tax, and financial advisors before making any investment decisions. TMF assumes no responsibility for any losses or damages arising from this advertisement.We’re committed to transparency: All personal opinions in advertisements from Fools are their own. The product advertised in this episode was loaned to TMF and was returned after a test period or the product advertised in this episode was purchased by TMF. Advertiser has paid for the sponsorship of this episode.Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices