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A General Panel Model with Random and Fixed Effects: A Structural Equations Approach
ARTICLE

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Social Forces Volume 89, Number 1, ISSN 0037-7732

Abstract

Fixed- and random-effects models for longitudinal data are common in sociology. Their primary advantage is that they control for time-invariant omitted variables. However, analysts face several issues when they employ these models. One is the choice of which to apply; another is that FEM and REM models as usually implemented might be insufficiently flexible. For example, the effects of variables, including the latent time-invariant variable, might change over time. The latent time-invariant variable might correlate with some variables and not others. Lagged endogenous variables might be necessary. Alternatives that move beyond the classic FEM and REM models are known, but they involve estimators and software that make these extended models difficult to implement and to compare. This article presents a general panel model that includes the standard FEM and REM as special cases. In addition, it provides a sequence of nested models that provide a richer range of models that researchers can easily compare with likelihood ratio tests and fit statistics. Furthermore, researchers can implement our general panel model and its special cases in widely available structural equation models software. (Contains 15 notes, 4 figures and 6 tables.)

Citation

Bollen, K.A. & Brand, J.E. (2010). A General Panel Model with Random and Fixed Effects: A Structural Equations Approach. Social Forces, 89(1), 1-34. Retrieved January 24, 2022 from .

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