Performance Sampling and Bimodal Duration Dependence
Performance sampling models of duration dependence in employee turnover and firm exit predict that hazard rates will initially be low, gradually rise to a maximum, and then fall. As we note in this paper, however, several empirical duration distributions have bimodal hazard rates. This paper shows that such bimodal hazard rates can be derived from existing models of performance sampling by small changes in the assumptions. In particular, bimodal hazard rates emerge if the mean or the variance of performances changes over time, which would occur if employees or firms face more challenging tasks over time. Using data on turnover in law firms, we show that the hazard rate predicted by these models fit data better than existing models.
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- Rosen, Sherwin, 1981. "Studies in Labor Markets," National Bureau of Economic Research Books, University of Chicago Press, edition 0, number 9780226726281.
- March, James G., 1988. "Variable risk preferences and adaptive aspirations," Journal of Economic Behavior & Organization, Elsevier, vol. 9(1), pages 5-24, January.
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