Replication Materials Authors: Rasmus Lentz and Nicolas Roys Title of the Paper: Training and Search On the Job Manuscript Number: RED-D-22-00237R1 Editor in Charge: Loukas Karabarbounis COMPUSTAT FOLDER We downloaded the raw data from the Wharton Research Data Services website. We extracted the variables on total staff expenses and the number of employees in the firm. To replicate the results of the paper, run the do file main.do. NLSY79 FOLDER We downloaded the raw data from the NLS Investigator website. We extracted variables on demographics, labour force status and wages for all cohorts during the period 1979 and 2020. To replicate the results of the paper, run the do file main.do. MODEL FOLDER We solved and simulated the model using Fortran 90 programming language. The main fortran file is main.f90. To create the executable run, use the makefile makefile. To replicate all the figures and tables of the paper, run the executable run. All the computations were done using a MacBook Pro (2020) with Apple M1 chip. The do files run in a few seconds. The executable runs in a few minutes.