2448-6655 2448-6655 S2448-66552020000300221 Mexico 00 12 2020 00 12 2020 35 90 221 228

1983 1988 56 2 2 383-96 1990 58 5 5 1041-63 1997 45 4 4 429-44 1971 3 2 2 156-68 1984 52 1 1 87-100 COFECE 2019 1964 72 1 1 44-61 1988 OECD 2001