Gilbert, AFrijns, BTourani-Rad, A2011-08-232011-08-232011-05-012011-05-01INFINZ Journal - May 2011, pp.10-121176-7219https://hdl.handle.net/10292/1861© Institute of Finance Professionals NZ, 2011. The definitive version was published in (see Citation). The original publication is available at (see Publisher's Version).Regulation and market efficiency: the impact of criminal sanctions for insider trading on transaction costsJournal ArticleOpenAccess