May 17, 2013
Michael Finke, a professor in the department of personal financial planning at Texas Tech University in Lubbock, is a co-author of a paper critical of the rule, “The 4 Percent Rule Is Not Safe in a Low-Yield World.” He says Mr. Bengen’s rule doesn’t acknowledge the new economic reality of prolonged low returns. “There haven’t been any historical periods that look like today,” Mr. Finke said. “We’ve never had an extended period where rates of returns on bonds have been so low and valuation on stocks so high.”