Using studies like this irks me. Science doesn't just stop there. When citing a study like this, it would be wonderful to see something like "Based on this res

Using studies like this irks me. Science doesn't just stop there. When citing a study like this, it would be wonderful to see something like "Based on this research, we expect to the economy grow by X additional dollars in this area, using methods XYZ" If the legislation fails to achieve the actual result with a proposed amount of time, then it gets scrapped. Our legal system is missing a feedback loop - adding complexity is cheap (and profitable if you're a politician) but removing it expensive and there's generally not any reason to without SIGNIFICANT public outcry (marijuana legalization, for instance).