Monitoring and evaluating changes in cannabis policies: insights from the Americas


This report provides an overview of the changes in cannabis policies in the Americas and the evidence emerging from evaluations of their impact. Highlighting the challenges in monitoring and evaluating regulatory changes in the drugs field, it will be of particular interest to those involved in planning or evaluating any modifications to cannabis regulation.

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Table of contents

Executive summary
1. Introduction
2. Background to cannabis policy developments in the Americas
3. A description and typology of different policy approaches
4. An assessment of early evidence of the impact of policy changes in the United States
5. Issues to consider when establishing a comprehensive monitoring and evaluation framework for changes to cannabis regulations
6. Concluding thoughts
Appendix A: Identification and commentary on ongoing/planned studies of legalisation
Appendix B: Research papers on the impacts of recreational cannabis laws
Appendix C: Additional trend data