Fernandes, Nuno; Ferreira, Miguel A. - In: Review of Financial Studies 22 (2009) 5, pp. 1845-1887
We investigate the relation between a country's first-time enforcement of insider trading laws and stock price informativeness using data from 48 countries over 1980--2003. Enforcement of insider trading laws improves price informativeness, as measured by firm-specific stock return variation,...