1665-7063
1665-7063
S1665-70632018000400383
10.22201/eneo.23958421e.2018.4.545
Mexico
Mexico
00
12
2018
00
12
2018
15
4
383
393
[
2014
30
4
4
896-904
]
[
2015
41
2
2
324-34
]
[
2015
32
2
2
829-36
]
[
2015
60
5
5
539-49
]
[
2015
32
1
1
94-100
]
[
2008
7
32
32
6
]
[
2015
31
2
2
629-36
]
[
2017
]
[
2002
]
[
2015
50
1
1
106-13
]
[
2015
31
1
1
449-57
]
[
2015
12
16
16
10
]
[
2007
49
1
1
169-76
]
[
2013
52
3
3
164-71
]
[
2017
29
2
2
]
[
2009
5
12
12
71-87
]
[
2015
31
5
5
1910-9
]
[
2012
3
]
[
2007
129
20
20
766-9
]
[
StataCorp
2015
]
[
2017
37
7-13
]
[
2015
31
4
4
1582-8
]
[
2013
27
3
3
189-99
]
[
2011
13
5
5
748-58
]
[
2014
29
2
2
315-21
]
[
2009
41
10
10
558-63
]