2631-2786 2631-2786 S2631-27862021000400133 10.35290/rcui.v8n1e.2021.521 Ecuador Ecuador 00 12 2021 00 12 2021 8 133 146

1979 6 3 3 237-46 1999 21 1 1 49-59 2016 17 294-318 2004 6th 1996 6 36 36 203-42 1973 2010 2016 15 15 55-84 1973 16 1 1 67-88 2007 44 1 1 114-27 1987 6 201-11 2004 38 5/6 5/6 537-55 Comisión Federal de Comercio 2012 2000 26 4 4 307-22 2010 6 1 1 125-45 1999 2nd 2004 14 3 3 230-56 2009 87 2 2 199-210 1992 59 17-29 1998 17 805-15 1970 78 2 2 311-29 1974 82 4 4 729-54 1978 15 1 1 29-38 2002 36 355-79 1995 14 1 1 43-51 2007 72 163-75 2011 35 1 1 169-96 2011 11 3 3 293-314 2006 7th