0379-3982 0379-3982 S0379-39822017000300012 10.18845/tm.v30i3.3269 Costa Rica Costa Rica United States 00 09 2017 00 09 2017 30 3 12 23

[1] 1999 [2] 2008 20 10-20 [3] 2008 57 637-58 [4] 2010 59 641-67 [5] 2002 [6] OECD 2006 [7] 2008 [8] 2005 [9] 2010 1 30-8 [10] 2006 [11] 2009 [12] 2006 [13] 1995 33 3-16 [14] 1999 16 485-506 [15] 1992 [16] 2007 [17] 2001 [18] 1994 19 392-418 [19] 2002 9 39-58 [20] 2005 54 400-18