http://www.ebrd.com/news/events/ebrd-transition-report-201718.html
https://www.perfandersson.com/uploads/1/2/7/5/127505228/andersson_2022_cp_accepted_version.pdf
https://www.oecd-ilibrary.org/docserver/19e99855-en.pdf?expires=1684086001&id=id&accname=guest&checksum=289864080528AAE8A1EC0D9ABED148E4
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiYtOnpoqT1AhXV7rsIHfpxDhcQFnoECAcQAQ&url=https%3A%2F%2Fosf.io%2Fpreprints%2Fsocarxiv%2F8nzb4%2Fdownload&usg=AOvVaw1M87IVrQbHicDueJuLi74b