Chronicle Interview: Drug Policy Researcher Beau Kilmer (

By PHILLIP SMITH | July 17, 2014


Drug War Chronicle: What are we learning from marijuana legalization so far in Colorado and Washington, especially about prices, tax rates, and regulatory structures?

Beau Kilmer: With respect to prices, I think it’s too soon to make a serious judgment. I would expect them to fall eventually as the number of producers increases and there is more competition. Regarding taxes, there is clearly tax revenue coming in, but not as much as expected, partly because medical marijuana markets don’t face the same taxes. These markets are in transition, and there are data lags. It’s too early to do cost-benefit analyses, and when the data does start coming in, what happens a year or two from now, good or bad, could be completely different from what happens in five or 10 years.

There are two other things we need to consider in doing a cost-benefit analysis. First, when you hear that factor X or Y has decreased or increased, it’s important to ask: Compared to what? People will say that this changed in Colorado, but how did it change or not in other states? This is often outside the capacity of news organizations, but when you hear people making these claims, you need to be asking questions. What about neighboring states? If media organizations did that, it could actually improve the quality of the discussion we’re having.

The second thing is, don’t forget about alcohol. If people are more likely to use alcohol and marijuana together, you have to worry about driving under the influence. Marijuana impairs you somewhat, alcohol impairs you more, and the interaction between marijuana and alcohol can increase the probability of impairment. On the other hand, if they are economic substitutes, if some heavy alcohol users are moving away from consuming it and consuming more marijuana, that could potentially be a net win for society. There are social costs associated with heavy marijuana use, but the social costs associated with alcohol are much greater — fatal overdoses, chronic disease, violence. We really need to pay close attention to how legalization influences not only marijuana consumption, but also alcohol consumption. We will be watching this, not only in Colorado and Washington, but also in Uruguay.

Chronicle: How worried do we have to be about marijuana dependence, anyway? Is it any worse for the individual or society than, say, dependence on coffee?

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