“…In general, prior work finds that a change in the regulatory environment has little to no effect on market participants without legitimate enforceability of the new regulation(s) (Harford [1978], Viscusi and Zeckhauser [1979], Kambhu [1989], Schwartz and Soo [1996], Fernandes and Ferreira [2009], Christensen, Hail, and Leuz [2016]) and a revised perception among market participants that the expected value of compliance exceeds the costs of violation (Kambhu [1989], Laux and Stocken [2018]). The legal community broadly viewed the SEC's defeat in Siebel as a major obstacle to future Reg FD enforcement efforts (Slifer [2005], Solomon [2005], Fisch [2013], Bengtzen [2017]). In fact, in the aftermath of Siebel , a former SEC chairman and a former SEC enforcement lawyer both expressed doubts about whether the SEC could continue enforcing Reg FD the same way that it had before (Solomon [2005]).…”