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Ranjodh B. Singh, Senior Lecturer, Curtin University

Are tobacco and cannabis economic substitutes or complements? New research suggests it changes with age

Tunatura/Shutterstock

It’s no secret that many different drugs, whether illicit or regulated and legal, are often consumed together or share a similar group of users.

But the way people consume drugs together can vary, both with changes in their price and across different age groups.

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