“…Cost per trainee (% GDP pc) reports median of program cost as share of country GDP per capita, using GDP per capita in the country of program implementation. Studies in column 1 include ( Beg et al, 2021 , Blimpo et al, 2015 , de Barros et al, 2019 , de Hoyos et al, 2020 , Fryer, 2017 , Ganimian and Freel, 2020 , Jacob et al, 2015 , Kraft and Blazar, 2014 , Lassibille et al, 2010 , Lohmann et al, 2020 , Romero et al, 2022 , Tavares, 2015 ).…”