MacDonald Mark Posted about 3 years ago Cannabis legalization; Are we in the middle of a global paradigm shift? In what way do you think it would be bad for the economy? It seems to me that re-legalizing cannabis is a sound economic decision. It would eliminate the wasteful costs of criminalization while effectively legitimize a multi-billion dollar industry and open it to the economy rather than the black market. Yes it would be fair to assume that public health costs would be involved but there is no evidence to suggest that it would be anywhere close to tobacco or alcohol.