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...

We merge administrative information from a large German discount brokerage firm with regional data to examine if financial advisors improve portfolio performance. Our data track accounts of 32,751 randomly selected individual customers over 66 months and allow direct comparison of performance...