Thomas A. Lubik, and Paolo Surico, "The Lucas Critique and the Stability of Empirical Models", Journal of Applied Econometrics, Vol. 25, No. 1, 2010, pp. 177-194. There are no actual data being used in the published version of this paper. We wish to refer interested readers to the working paper version (Richmond Fed WP 06-5, May 2006), which contains empirical analysis of actual data. Please address any questions to Thomas A. Lubik Research Department Federal Reserve Bank of Richmond 701 E. Byrd Street Richmond, VA 23218 Thomas.Lubik [at] rich.frb.org