Costs and benefits to whom? You can only do that for yourself, it's impossible to do that for other people.
Play the role of the regulator for a minute.
I'm finishing the attic of my house, and I need to determine how much insulation to use. Since I'm in the northeast, the tighter and the more insulation I use, the lower it will cost to heat the space, which is a benefit. But insulating the space has a cost as well.
So how should I insulate the space? The regulator cannot answer this question. All he can do is to impose his own personal preferences on me by force.
I started a thread on this very topic:
In in recent exchange, a poster responded to me with this: Or we could regulate the medicines that companies are allowed to produce for safety and effectiveness. Seems reasonable, but let's unpack it and see what it really means. First, safety isn't binary. Something isn't safe or unsafe...
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