When given the chance to win $7 or lose $7, most people will take the gamble—but not if the alternative, even a less profitable one, offers a guaranteed way to avoid losing. This small but telling detail from a study led by Lisa Posey at Penn State’s Smeal College of Business reveals a deeper truth about how we make financial decisions: we’re not cold calculators weighing risk against return. We’re emotional beings, wired to flinch at loss and recoil at regret. For decades, economic theory assumed people made financial choices by balancing potential gains with their appetite for risk. But real life doesn’t follow tidy models. In a new study published in the Journal of Risk and Uncertainty, Posey and her team put two competing behavioral theories to the test—loss aversion and regret avoidance—to see which better explains how people actually behave when money is on the line. What they found is that both matter, and often work together. In an experiment with 228 participants, each given $17 to play a series of gambles, people consistently shifted their choices the moment the second gamble removed the threat of losing money—even if it wasn’t the most profitable move. The data showed that when a gamble carried any risk of loss, participants were 10 percentage points more likely to avoid it. Women, on average, were even more loss-averse, avoiding risky gambles 15 percentage points more often than men, while men did so 8 percentage points more. But the study didn’t stop there. In a second phase, participants were split into groups: one saw only the outcome of the gamble they chose, while the other saw both their choice and the alternative. The difference was revealing. When people could see what they missed—when regret became visible—they changed their behavior. The mere possibility of knowing they’d made a worse choice pushed them toward safer bets. This was especially true for women, who were more likely than men to adjust their decisions to avoid future regret. The implications ripple far beyond a lab experiment. As Posey notes, any organization selling financial products or shaping policy—from insurance companies to retirement planners—must reckon with the fact that people don’t just weigh numbers. They weigh feelings. A decision isn’t just about return on investment; it’s about peace of mind. And in a world where financial anxiety is widespread, understanding the emotional logic behind choices may be the key to building better systems. The future of financial design might not lie in sharper algorithms, but in deeper empathy.