This story is oft-repeated here but this paper provides convincing historical industrial evidence that it's a myth: https://papers.ssrn.com/sol3/papers.cfm?abst

This story is oft-repeated here but this paper provides convincing historical industrial evidence that it's a myth: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2355673 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2355673