Final answer:
Behavioral economics research by Daniel Kahneman and Amos Tversky demonstrates that individuals feel less regret after making a decision than they anticipate, primarily because of the 'loss aversion' principle, and tend to react more strongly to losses than gains.
Step-by-step explanation:
According to insights from behavioral economics, participants tend to experience far less regret than they anticipate for a given decision. Research conducted by economists Daniel Kahneman and Amos Tversky explores a concept known as loss aversion, highlighting that a loss is felt more acutely than an equivalent gain. Whether it's losing a $10 bill or reacting to fluctuations in the stock market, individuals exhibit a stronger emotional response to losses compared to gains. Because of loss aversion, where a $1 loss pains us 2.25 times more than a $1 gain helps us, this can lead to an overreaction to perceived negative outcomes.