Avoiding regret
To test people’s tendency to avoid regret, the researchers conducted two variations of the gamble-based experiment with the same participants. In these sessions, participants were either informed only about the outcome of the gamble they selected, or they were informed of the outcome of both gambles.
When participants could see the results of both gambles, either choice could lead to regret because people could always see when they selected the less profitable option.
When participants could see only the outcome of the gamble they selected, they only risked regret if they selected the first gamble option, because those who selected the second option could not know if the first would have given a better outcome. Those who selected the first option and received the lower outcome would experience regret because selecting the second gamble option would have been superior. In the example above, if the first gamble had outcomes of losing $7 or winning $7, and the second gamble had outcomes of losing $2 or winning $5, losing $7 would mean you selected the poorer option, so you could experience regret even without knowing whether you would have lost $2 or won $7 by selecting the other gamble option.
The researchers considered participants to be regret-avoidant if they were more likely to select the second gamble option when the outcome was revealed only for the selected gamble, while all other conditions remained the same.
Results showed that women were six percentage points more likely to avoid a gamble they might regret. Men’s behavior, on the other hand, did not appear to be affected by regret.
“If the average woman in this study needed to pick between purchasing two stocks, and she selected a stock that made money, she would feel good about that,” Posey explained. “If, however, she saw that the other stock made even more money, she would regret not choosing that stock. Importantly, she would take those potential feelings into account when making her decision. What’s more, almost all participants were working to avoid loss at the same time. When you combine the loss aversion and regret aversion, it can lead to very different financial decisions than standard models might predict.”
Implications for business, government and beyond
“Any business or policymaker that relies on people’s financial decisions needs to understand and incorporate loss avoidance and regret avoidance in their models,” Posey said. “Otherwise, the businesses may not optimize their products or profits, and the policies may not achieve their goals.”
Additionally, she noted that the human tendencies driving these results may extend well beyond financial choices.
"These same forces may matter in many real-world choices,” Posey said. “From buying stocks to finding a partner on a dating app, people may weigh the downside more heavily than the upside while also trying to avoid the regret that comes from learning a choice they passed up would have turned out better for them."
Other contributors to this study included Anthony Kwasnica of the Department of Economics at Florida State University and Charles Geier of the Department of Human Development and Family Science at the University of Georgia.
Experiments for this study were conducted in the Laboratory for Economics, Management, and Auctions in the Smeal College of Business.