Is cannabis a gateway to hard drugs?
AbstractThe gateway hypothesis proposes that cannabis use increases the risk of starting to consume hard drugs. We test this controversial, but influential, hypothesis on a sample of cannabis users employing a unique set of drug prices. A flexible approach is developed to identify the causal gateway effect using a bivariate survival model with shared frailty estimated using a latent class approach. The model suggests two distinct groups; a smaller group of âtroubled youthsâ for whom there is a statistically significant gateway effect that doubles the hazard of starting to use hard drugs and a larger fraction of âmost youthsâ where previous cannabis use has little impact.
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Bibliographic InfoArticle provided by Springer in its journal Empirical Economics.
Volume (Year): 38 (2010)
Issue (Month): 3 (June)
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Other versions of this item:
- Hans Olav Melberg & Anne Line Bretteville-Jensen & Andrew M. Jones, 2007. "Is cannabis a gateway to hard drugs?," Health, Econometrics and Data Group (HEDG) Working Papers 07/01, HEDG, c/o Department of Economics, University of York.
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
- L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation
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