2215-4175 2215-4175 S2215-41752018000100555 10.15517/aeca.v44i0.34085 Costa Rica 00 12 2018 00 12 2018 44 555 560 2016 1992 1998 1999 2005 2008 8 229-57 2013 40 3 3 485-501 2016 2014 40 1 1 195-228 2015 42 3-4 3-4 467-88