Status quo
An example of the status quo bias affecting retirement plans is a study done that examined the U.S. equity mutual fund. They found that people maintained the plan they had previously, even if it was no longer the optimal choice. Another study in 1986 examined the effect of status quo bias on those planning their retirement savings when given the yearly choice between two investment funds. Participants were able to choose how to proportionally split their retirement savings between the two funds at the beginning of each year. After each year, they were able to amend their chose split without switching costs as their preferences changed. Even though the two funds had vastly different returns in both absolute and relative terms, the majority of participants never switched the preferences across the trial period. Status quo bias was also more evident in older participants as they preferred to stay with their original investment, rather than switching as new information came to light.