Brogaard, Jonathan
[Verfasser:in]
;
Ringgenberg, Matthew C.
[Sonstige Person, Familie und Körperschaft];
Rösch, Dominik
[Sonstige Person, Familie und Körperschaft]
Anmerkungen:
Nach Informationen von SSRN wurde die ursprüngliche Fassung des Dokuments September 27, 2020 erstellt
Beschreibung:
While algorithmic trading now dominates financial markets, some exchanges continue to use human floor traders. On March 23, 2020 the NYSE suspended floor trading because of COVID-19. Using a difference-in-differences analysis, we find that floor traders are important contributors to market quality, even in the age of algorithmic trading. The suspension of floor trading leads to higher effective and quoted spreads and larger pricing errors. Moreover, consistent with theoretical predictions about automation, the effects are strongest around the opening and closing auctions when complexity is highest. Our findings suggest that human expertise can complement algorithms in complex situations