Guo Xu of Haas School of Business, UC Berkeley and his co-author use newly digitized records from the U.S. Post Office to study how strengthening state capacity affects public service delivery and innovation in over 2,700 cities between 1875 – 1905. Exploiting the gradual expansion of a major civil service reform, cities with a reformed postal office experience fewer errors in delivery, lower unit costs, and an increase in mail handled per worker. This improvement goes with greater information flow, as measured by increased volumes of mail and newspapers. They use personnel data to show that reformed offices see a decline in turnover and an increase in merit-based retention, consistent with a reduction in political interference.

In this Quantitative History Webinar, Guo Xu will explain their observation of more joint patenting involving inventors and businesses from different cities and how a more effective postal service contributed to innovation and growth during the Gilded Age.