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st: Age-period-cohort modelling, correcting for identifcation -apc_ie-

From   "Karen Wright" <>
To   <>
Subject   st: Age-period-cohort modelling, correcting for identifcation -apc_ie-
Date   Mon, 12 Jul 2010 09:03:11 +0100

Dear Statalist,

I am conducting some APC modelling but due to the original source of my data there is a prblem of identifiability (cohort=period-age!)  To correct for this when modelling I was hoping to use -apc_ie-, the intrinsic estimator.  However, it is unclear (in the help file and the paper written) on the format the data should be in before entering into -apc_ie-.
Would anyone be able to help on this?  Or if not then suggest another method of correcting for identification in APC modelling?


paper: Yang & Land (2004) A methodological Comparison of Age-Period-Cohort Models: The Intrinsic Estimator and Conventional Generalized Linear Models.  Sociological Methodology, 34(1), 75-110.

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