Should have mentioned earlier that in terms of tractability, Hungary might offer the most interesting case study: abortion has not been restricted significantly there at all, but they have reduced the abortion rate from 90,000 in 1990 to just over 20,000 today. This resulted from quite a costly set of pro-family policies which have been widely lauded in pro-family circles, but it is possible that other factors contributed as well (as a nuance to my earlier post, there is good evidence that contraception reduced abortion rates specifically in ex-Soviet countries, probably because sexual behaviour had already changed but abortion had been legalised and was being used as birth control—so contraception substituted more equivalently for it). Hungary abortion numbers: https://www.ksh.hu/stadat_files/nep/hu/nep0013.html
Should have mentioned earlier that in terms of tractability, Hungary might offer the most interesting case study: abortion has not been restricted significantly there at all, but they have reduced the abortion rate from 90,000 in 1990 to just over 20,000 today. This resulted from quite a costly set of pro-family policies which have been widely lauded in pro-family circles, but it is possible that other factors contributed as well (as a nuance to my earlier post, there is good evidence that contraception reduced abortion rates specifically in ex-Soviet countries, probably because sexual behaviour had already changed but abortion had been legalised and was being used as birth control—so contraception substituted more equivalently for it). Hungary abortion numbers: https://www.ksh.hu/stadat_files/nep/hu/nep0013.html