The Role of Time Preferences and Exponential-Growth Bias in Retirement Savings
By Gopi Shah Goda, Matthew R. Levy, Colleen Flaherty Manchester, Aaron Sojourner & Joshua Tasoff There is considerable variation in retirement savings within income, age, and educational categories. Using a broad sample of the U.S. population, we elicit time preference parameters from a quasi-hyperbolic discounting model, and perceptions of exponential growth. We find that present bias (PB), the tendency to value utility in the present over the future in a dynamically inconsistent way, and exponential-growth bias (EGB), the tendency to...