"Do marijuana users cut back on consumption when the price rises? To what degree is marijuana consumption related to drinking and tobacco usage? What would happen if marijuana were legalised and taxed in the same way as alcohol and tobacco? Is marijuana priced in a similar way to other goods?...

This paper introduces a simulation procedure in the context of a demand system for vice -- marijuana, tobacco and alcohol -- to formally account for the inherent uncertainty in marijuanarelated data and parameters. This entails using existing econometric estimates pertaining to the consumption...