Persistent Marijuana Use: Evidence from the NLSY

Arbeitspapier

We analyze persistence in marijuana consumption utilizing data from the 1997 cohort of the National Longitudinal Survey of Youth (NLSY97). We allow for three sources of persistence: pure state dependence, time invariant unobserved heterogeneity and persistence in idiosyncratic, time-varying shocks. We also consider intensity of consumption based on days of use per month and estimate a dynamic ordered Probit model using simulated Maximum Likelihood. We consider a Polya model that generalizes the more commonly used Markov models. The results show that there is a causal eect of previous use. However, ignoring unobserved heterogeneity and serially correlated shocks signicantly exaggerates the state dependence.

Object Details

• Language: Englisch

References and Relationships

• Bibliographic citation: Series: IZA Discussion Papers ; No. 16446

Classification and Topics

• Classification: Wirtschaft ; Health Behavior
• Subject: marijuana ; persistence ; state dependence ; Polya model ; unobserved heterogeneity ; dynamic ordered probit ; simulation ; NLSY

Contributors, Places and Time

• Event: Geistige Schöpfung
• (who): Hansen, Jörgen ; Davalloo, Golnaz
• Event: Veröffentlichung
• (who): Institute of Labor Economics (IZA)
• (where): Bonn
• (when): 2023

Further information

• Handle: http://hdl.handle.net/10419/279144
• Last update: 10.03.2025, 11:41 AM CET