At the CCSU, a working group that grew out of the National Alcohol Strategy produced a document that I could provide to you.
The title of the document is “Social Reference Prices for Alcohol”.
Based on various simulations, in 2009, the researchers found that $1.50 was an amount that led to better control of alcohol consumption without too many harmful effects. That amount was $1.50 in 2009, or $1.71 in today's dollars.