Two people claiming to be UCLA economics faculty have published an article in Higher Education Quarterly which one of the mythbusters at Powerline blog says is a hoax. Keep in mind this is the blog that exposed the fraud committed on CBS about George W Bush's National Guard service.
If this was so obvious to Powerline, why couldn't the editors at Higher Education Quarterly figure it out?
https://www.powerlineblog.com/archives/2021/11/latest-academic-hoax-is-a-doozy.php