← Search

Journal of Financial Markets Vol. 66 2023

Insider trading regulation and trader migration

Robert Merl1; Stefan Palan1; Dominik Schmidt2,3; Thomas Stöckl4

1 University of Graz · 2 Centre d'Économie de la Sorbonne · 3 Université Paris 1 Panthéon-Sorbonne · 4 Management Center Innsbruck

open access

Abstract

Discussions about insider trading regulation veer between the poles of forbidding insider trading to protect market integrity and allowing insider trading to foster informational efficiency. We study traders’ preferences for regulation by offering them concurrent markets with different regulatory regimes in an experimental setting. We find that informed traders’ preference for the unregulated market causes both informed and uninformed traders to be more active in the unregulated market. This market, thus, sees more trading volume, lower spreads, and less mispricing. Nevertheless, uninformed traders suffer greater losses in unregulated markets, while informed traders profit from the absence of regulation.

DOI
10.1016/j.finmar.2023.100839
Volume
66
Pages
100839
Language
en
Sources
crossref openalex

Cite