The past decade has been a time of drastic developments, both in financial markets and in related academic research. Among the most striking developments are the expanded stockholder base, the increased popularity of mutual funds among households, and the growing importance of private pension...

Combining survey responses and trading records of clients of a German retail broker, this paper examines some of the causes for the apparent failure to buy and hold a well-diversified portfolio. The subjective investor attributes gleaned from the survey help explain the variation in actual...