Furthermore, it is impossible to align efforts, as competing publishers often own different portions of rights to the same work. (blackplasticglasses.com)
The company was said to have used such deals to influence pricing between competing publishers. (techtimes.com)
This alone is enough reason for many authors at competing publishers to eschew their publisher's Kindle edition (if they offer it all) in preference for ours. (brentsampson.com)