Almost a decade after Enron’s implosion, some public companies appear to be dodging required ethics disclosures intended to prevent the sort of insider dealings that helped bring down the legendary energy company, according to a new academic analysis.

The study says that at least some disclosure of related-party transactions mandated under Section 406 of the Sarbanes-Oxley Act isn’t happening anywhere near as quickly as it should. Instead, companies bury the details amid other information.