We show that participants are influenced by their coworkers when they make equity investment decisions. Using a rich dataset of 401(k) plans, we find that individuals are likely to increase (decrease) their risky share when they have lower (higher) equity exposure than their coworkers in the...

Using a unique dataset on over one million 401(k) traders, we investigate momentum trading in 401(k) plans. We identify momentum traders in each quarter and evaluate how these traders perform. Results indicate the existence of momentum traders. However, there is no evidence that they...

We show that participants are influenced by their coworkers when they make equity investment decisions. Using a rich dataset of 401(k) plans, we find that individuals are likely to increase (decrease) their risky share when they have lower (higher) equity exposure than their coworkers in the...

Using religious festivals in Taiwan as repeated natural experiments, we examine whether the religious beliefs of individual investors influence their trading behaviors. Based on the assumption that religious festivals draw superstitious individual investors participating and make them feel lucky...

This research analyzes how experiencing a natural disaster influences individual investor trading in the stock market. Exploiting a unique stock trading dataset of retail investors in Taiwan, we determine that individual investors who experienced major natural disasters trade more aggressively...