Nevertheless, from Retraction Watch:
A former Harvard economist and co-founder of a massive repository of free papers in social sciences has been accused of reusing similar material over multiple papers.
The three papers share the same title. According to an investigation by one of the journals, two papers by Michael Jensen, now an emeritus faculty member at Harvard, are “close-to-identical,” while another includes a “substantial amount of overlapping content.” None of the three papers cite the others.
The journal, Business Ethics Quarterly, has added an editorial notice to a 2002 paper by Jensen, noting its similarity to a 2001 paper and another 2001 paper. The notice states an earlier version of the paper was published by Harvard Business School Press. The editor surmises that all three journals were “more or less simultaneously vetting versions of the Jensen article.”
Jensen is the co-founder of the Social Science Research Network (SSRN), a repository of more than 800,000 papers that has been named the “Number 1 Open Access Repository in the World.” SSRN was purchased by Elsevier in 2016.
We spoke with Jensen briefly by phone; he denied submitting the same paper to three journals simultaneously ...
Read the rest here: Famous Harvard economist reused parts of 2002 paper multiple times, says journal.
Update: I looked at the three papers and once you get past the exact same titles, they are VERY similar.