2178-5201 2178-5201 S2178-52012021000100212 10.4025/actascieduc.v43i1.56997 Spain Spain 00 00 2021 00 00 2021 43

2018 2020 Bolonia 1999 1978 241-56 2014 1995 7 41-63 1996 2010 1998 2016 169-93 2012 14 2 2 323-37 2011 1986 106 28-32 2013 436 1-3 2010 2015 19 1 1 42-58 2018 24-53 2014 24 2014 2014 199-214 1989 6 487-99 2017 2014 113-9 1992 2007 13 2007 2007 133-53 1975 2019 23 3 3 15-33 2009 13 1 1 1-25 1973 2009 2007 5 3 3 497-534 1992 Organisation for Economic Co-operation and Development [OECD] 2005 1992 62 3 3 307-32 1965 2 2016 16 3 3 455-68 2020 1 2020 2020 1-22 1993 53-92 1995 2014 2011 156-71 2014 15 35 35 88-107 2001 5 13 13 93-102 2010 334 334 15-8 2006 195-208 2015 57 40-3 1989 2020 43 1 1