Selection in Banking
Over the past thirty years, more than 2,900 U.S. banks have transformed from pure depository institutions into conglomerates involved in a broad range of business activities. What type of banks choose to become conglomerate organizations? In this post, we document that, from 1986 to 2018, such institutions had, on average, a higher return on equity in the three years prior to their decision to expand, as well as a lower level of risk overall. However, this superior pre-expansion performance diminishes over time, and all but disappears by the end of the 1990s.