K. G. Mavromaras and C. D. Orme, "Temporary Layoffs and Split Population Models", Journal of Applied Econometrics, Vol. 19, No. 1, 2004, pp. 49-67. The data used in this paper are the property of the Federal Employment Service of Germany who do not permit open access. Therefore, the data cannot be made available in the JAE Data Archive. Enquiries concerning the data can be addressed to Department of Statistics and International Comparisons, Institut fuer Arbeitsmarkt- und Berufsforschung (IAB), Bunbdersanstalt fuer Arbeit, Regensburgerstrasse 104, D-90478 Nuernberg, Germany. The data used here are described in the main text and Appendix 1 of the paper. The estimation files along with a sample data file are lodged in this archive. The file mofiles.zip contains the following three files, which are ASCII files in DOS format. Unix users should use "unzip -a". tlayoff.f90 (the fortran code): This program has produced the exact results reported in the paper. Comments have been included to help reading it. split.info: This file provides some starting values for the fortran code and explains some of its workings. Note that some of the variables mentioned in this file have not been used in the paper. sample50.dat: This file follows the exact read in format and the type of variables (as in the READ statements) as the original data. It contains 50 fictitious observations (for confidentiality reasons the values are made-up).