The author is grateful to Douglas Bernheim, Muriel Niederle, Michael Ostrovsky, and Charles Lee for guidance and support. The author thanks Sandro Ambuehl, Ken Li, Timothy Mok, Carlo Schwarz, Peter Wakker, Edward Watts, Alex White, Anthony Lee Zhang, Songfa Zhong, journal editors and referees, and audiences at seminars and conferences for comments and suggestions. Emanuel Vespa kindly helped with the logistics of the experiment. This study is approved by the Stanford IRB in Protocol 45930 and by the UCSB IRB in Protocol 2-18-0331. All errors are the author’s own.