0122-3461 0122-3461 S0122-34612019000100105 10.14482/inde.37.1.624 Ecuador Ecuador 00 06 2019 00 06 2019 37 1 105 128

1 2012 2 2010 9 26-38 3 2013 4 39-46 4 2015 5 5 1999 6 2015 7 2000 51 35-47 8 2011 . 20 9 2007 10 2003 18 11 2015 12 2009 13 2005 14 2014 32 334-68 15 2002 1-18