Production is also largely illegal in Canada, with the exception in some of the province of very limited growing for personal use. Legalization is, of course, legalizing consumption, there will be a government monopoly on the parts of the chains that actually generate money.
You'll have to wait a while for the case study -- maybe until the US itself legalizes.
Production is legal and regulated in Canada. It's big business, and a major employer in my region. The value of my shares in cannabis-industry ETFs have tripled in the last few months.
It's so regulated as to be effectively impossible for individuals to get into unless they have serious connections. I've seen the stocks on the TSX too. I was going by the meaning of the previous posters, which seemed to be saying that all the previously illegal players in the food chain could now step into the limelight and/or that new players could easily get in the industry -- it couldn't be farther from the truth.
It's true that those businesses who benefitted from the regulation stand to be making serious money, and I suppose that is different from the situation in the Netherlands in a major way.
You'll have to wait a while for the case study -- maybe until the US itself legalizes.