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Avoiding biased versions of Wooldridge’s simple solution to the initial conditions problem
Published Web Location
http://www.gllamm.org/RabeHesketh&Skrondal_Econlet_2013.pdfNo data is associated with this publication.
Abstract
Wooldridge (2005) provided a simple and elegant solution to the initial conditions problem for dynamic nonlinear unobserved-effects models. His original auxiliary model includes the time-varying explanatory variables at each period. Unfortunately, a popular constrained version that includes within-means of the explanatory variables can be severely biased. We show that there are several ways to avoid this problem. © 2013 Elsevier B.V.
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