Here´s some research and commentary on this: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3665046 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=36

Here´s some research and commentary on this: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3665046 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3665046 https://www.lesswrong.com/posts/c4daDbQD398BmW5k5/on-car-seats-as-contraception https://www.lesswrong.com/posts/c4daDbQD398BmW5k5/on-car-sea...