Because California was a pioneer in the development of intrastate branching, we use its experience during the 1920s and 1930s to assess the effects of the expansion of large-scale, branch-banking networks on competition and the stability of banking systems. Using a new database of individual...

We use a novel data set spanning 1820-1910 to examine the origins of bank supervision and assess factors leading to the creation of formal bank supervision across U.S. states. We show that it took more than a century for the widespread adoption of independent supervisory institutions tasked with...