Lee Crawfurd@leecrawfurdNew paper uses LAYS (learning-adjusted years of school) to put quality & quantity on the same scale. Over the last 20 years quantity of schooling has increased/improved 4-5x more than quality https://beta.u-strasbg.fr/WP/2023/2023-02.pdf…11:53 AM · Jan 14, 2023·2,743 Views3 Retweets1 Quote Tweet18 Likes