Tino Berger and Bernd Kempa, "Testing for Time Variation in the Natural Rate of Interest", Journal of Applied Econometrics, Vol. 34, No. 5, 2019, pp. 836-842. The zip file bk-files.zip contains MatLab files to replicate the results of this paper. Store all files in one folder. To replicate Figure 1, run the file "replication_HLW.m" To replicate all other tables and figures, run the file "run_me.m".