Does anyone know how to recode the following categories to conduct an AGE x PERIOD x COHORT analysis with the Intrinsic Estimator Model using the following categories - I keep getting - despite various different recodes of the categories - the following error message in STATA: data do not satisfy cohort(cohrec)+age(agerec)=period(period1)
I appreciate any assistance you can provide.
Age=12 (6-year intervals)
18-23
24-29
30-35
36-41
42-47
48-53
54-59
60-65
66-71
72-77
78-83
84-89+
Cohort= 18 (6-year intervals)
1883-1888
1889-1894
1895-1900
1901-1906
1907-1912
1913-1918
1919-1924
1925-1930
1931-1936
1937-1942
1943-1948
1949-1954
1955-1960
1961-1966
1967-1972
1973-1978
1979-1984
1985-1990
Period=23 (unevenly spaced)
1972
1973
1975
1976
1978
1980
1983
1984
1986
1987
1988
1989
1990
1991
1993
1994
1996
1998
2000
2002
2004
2006
2008
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