Two economists take readers on a tour of the economics of legal and illegal weed, showing where cannabis regulation has gone wrong and how it could do better.Cannabis "legalization" hasn't lived up to the hype. Across North America, investors are reeling, tax collections are below projections, and people are pointing fingers. On the business side, companies have shut down, farms have failed, workers have lost their jobs, and consumers face high prices. Why has lega...