2215-4175 2215-4175 S2215-41752017000100189 10.15517/aeca.v43i0.31557 Costa Rica 00 12 2017 00 12 2017 43 189 223

1992 2007 1997 30 30 154-76 2009 1974 2008 2001 1999 1992 2007 1989 1997 152 152 54-67 2005 COMEX 2003 2002 1990 1991 1991 2004 1971 2006 2001 1995 2004 37-58 1949 2009 1997 30 30 135-54 1993 1961 2004 1997 76 76 1995 2001 30 2 2 157-200 1996 2004 103104 103104 127-42 2004 309-46 2014 1997 30 30 109-32 1993 1964 1967