Arbeitspapier

Mixed hitting-time models

We study a mixed hitting-time (MHT) model that specifies durations as the first time a Levy process - a continuous-time process with stationary and independent increments - crosses a heterogeneous threshold. Such models are of substantial interest because they can be reduced from optimal-stopping models with heterogeneous agents that do not naturally produce a mixed proportional hazards (MPH) structure. We show how strategies for analyzing the MPH model's identifiability can be adapted to prove identifiability of an MHT model with observed regressors and unobserved heterogeneity. We discuss inference from censored data and extensions to time-varying covariates and latent processes with more general time and dependency structures. We conclude by discussing the relative merits of the MHT and MPH models as complementary frameworks for econometric duration analysis.

Language
Englisch

Bibliographic citation
Series: cemmap working paper ; No. CWP15/07

Classification
Wirtschaft
Semiparametric and Nonparametric Methods: General
Duration Analysis; Optimal Timing Strategies
Subject
duration analysis , hitting time , identifiability , L´evy process , mixture

Event
Geistige Schöpfung
(who)
Abbring, Jaap H.
Event
Veröffentlichung
(who)
Centre for Microdata Methods and Practice (cemmap)
(where)
London
(when)
2007

DOI
doi:10.1920/wp.cem.2007.1507
Handle
Last update
10.03.2025, 11:42 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Abbring, Jaap H.
  • Centre for Microdata Methods and Practice (cemmap)

Time of origin

  • 2007

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