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    • Do firm effects drift? 

      Lachowska, Marta; Mas, Alexandre; Saggio, Raffaele; Woodbury, Stephen A. (Presented at the Models of Linked Employer-Employee Data Conference 2019, 2019-10-13)
      Firm effects in the AKM model are typically assumed to be constant over time. But what if they aren't constant? We look at a Time-Varying AKM model to show that firm effects are highly persistent and that variance components ...