1405-3195 1405-3195 S1405-31952007000500491 Chile Chile 00 08 2007 00 08 2007 41 5 491 502

1997 20 1731-53 1999 22 1815-27 1973 4 121-8 1964 28 236-8 2002 77 185-268 1971 35 600-2 2002 25 259-73 1986 383-412 2004 35 559-70 2003 95 160-6 2001 32 2317-23 1982 2nd 159-65 1978 42 421-8 1991 89-112 1986 9 195-214 1985 49 597-603 2000 23 1591-606 1997 35 727-38 1986 9 695-713 1990 229-64 1982 2nd 199-223 1990 54 1329-36 1971 63 758-61 1996 1123-84 1996 961-1010 2002 40 137-48 1954 1-19 1982 2nd 167-9 2004 2004 SAS Institute Inc. 1999 1998 1991 427-76 1986 94 445-9 1988 11 1557-74 1995 66 121-35