Handling Structural Breaks in DSGE Models

Hello

When estimating DSGE models, one major challenge is accounting for structural breaks in the economy; such as policy regime shifts, financial crises, or technological changes. :upside_down_face:

Ignoring these breaks can lead to poor model fit; biased parameter estimates, and misleading policy implications. However; properly incorporating them remains an open question. :innocent:

What are the best approaches for identifying and modeling structural breaks in DSGE frameworks? Should we use time-varying parameters, Markov-switching models, or shock modifications? :thinking:

Additionally, how do structural breaks impact Bayesian estimation and priors, and what techniques are recommended for handling them in practical applications? :thinking: Checked General DSGE Modeling - Dynare Forum guide for reference .

Have you successfully incorporated structural breaks in your DSGE model? What methods & datasets worked best for detecting regime changes? :thinking:

Let’s discuss the trade-offs and best practices for ensuring robust macroeconomic analysis in the presence of economic shifts.

Thank you !! :slightly_smiling_face:

I don’t think there are general answers to these very broad questions and thoroughly answering them would require a book length treatment.