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Erscheinungsjahr: 
2021
Schriftenreihe/Nr.: 
cemmap working paper No. CWP36/21
Verlag: 
Centre for Microdata Methods and Practice (cemmap), London
Zusammenfassung: 
Economists are often interested in estimating averages with respect to distributions of unobservables, such as moments of individual fixed-effects, or average partial effects in discrete choice models. For such quantities, we propose and study posterior average effects (PAE), where the average is computed conditional on the sample, in the spirit of empirical Bayes and shrinkage methods. While the usefulness of shrinkage for prediction is well-understood, a justification of posterior conditioning to estimate population averages is currently lacking. We show that PAE have minimum worst-case specification error under various forms of misspecification of the parametric distribution of unobservables. In addition, we introduce a measure of informativeness of the posterior conditioning, which quantifies the worst-case specification error of PAE relative to parametric model-based estimators. As illustrations, we report PAE estimates of distributions of neighborhood effects in the US, and of permanent and transitory components in a model of income dynamics.
Schlagwörter: 
model misspecification
robustness
sensitivity analysis
empirical Bayes
posterior conditioning
latent variables
JEL: 
C13
C23
Persistent Identifier der Erstveröffentlichung: 
Dokumentart: 
Working Paper

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