Can patience account for subnational differences in student achievement? : Regional analysis with facebook interests / Eric A. Hanushek (Hoover Institution, CESifo, IZA and NBER), Lavinia Kinne (ifo Institute), Pietro Sancassani (ifo Institute), Ludger Woessmann (ifo Institute, Hoover Institution, CESifo and IZA) ; IZA Institute of Labor Economics