Open Conference Systems, CLADAG2023

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Shrinkage of time-varying effects in panel data models
Helga Wagner

Last modified: 2023-06-09

Abstract


We consider  regression models for panel data with time-varying effects in a Bayesian framework. We implement shrinkage of regression effects
and  the process variances of the effects to distinguish between effects that are practically zero, constant or time-varying via shrinkage priors. Longitudinal dependence is taken into account by including
a subject specific random factor with weights that may also vary over time.
The model is applied to analyse  panel data on annual incomes of mothers
returning to the job market after maternity leave