A Theory of Stock Exchange Competition and Innovation: Will the Market Fix the Market?

An early version of this research was presented in the 2017 AEA/AFA joint luncheon address. We are extremely grateful to the colleagues, policymakers, and industry participants with whom we have discussed this research over the last several years. Special thanks to Larry Glosten, Terry Hendershott and Jakub Kastl for providing valuable feedback as conference discussants, and to Jason Abaluck, Nikhil Agarwal, Susan Athey, John Campbell, Dennis Carlton, Judy Chevalier, John Cochrane, Christopher Conlon, Shane Corwin, Peter Cramton, Doug Diamond, David Easley, Alex Frankel, Joel Hasbrouck, Kate Ho, Anil Kashyap, Pete Kyle, Donald Mackenzie, Neale Mahoney, Paul Milgrom, Joshua Mollner, Ariel Pakes, Al Roth, Fiona Scott Morton, Sophie Shive, Andrei Shleifer, Jeremy Stein, Mike Whinston, Heidi Williams and Luigi Zingales for valuable discussions and suggestions. We are also very grateful to seminar audiences at Chicago, Yale, Northwestern, NYU, Berkeley, Harvard, MIT, UPenn, Columbia, HKUST, KER, the Economics of Platforms Workshop, NBER IO, and SEC DERA. Paul Kim, Cameron Taylor, Matthew O’Keefe, Natalia Drozdoff, and Ethan Che provided excellent research assistance. Budish acknowledges financial support from the Fama-Miller Center, the Stigler Center, and the University of Chicago Booth School of Business. Disclosure: the authors declare that they have no relevant or material financial interests that relate to the research described in this paper. John Shim worked at Jump Trading, a high-frequency trading firm, from 2006-2011. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

• Data Appendix

• May 15, 2019
• January 6, 2020