Political Analysis Advance Access originally published online on August 17, 2005
Political Analysis 2005 13(4):447-456; doi:10.1093/pan/mpi033
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Two-Step Hierarchical Estimation: Beyond Regression Analysis
Department of Politics, Princeton University, Princeton, NJ 08544
e-mail: achen{at}princeton.edu
Two-step estimators for hierarchical models can be constructed even when neither stage is a conventional linear regression model. For example, the first stage might consist of probit models, or duration models, or event count models. The second stage might be a nonlinear regression specification. This note sketches some of the considerations that arise in ensuring that two-step estimators are consistent in such cases.