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Competing interests None.
Provenance and peer review Commissioned; internally peer reviewed.
↵i It is, of course, a distinct claim that we act wrongly when we act paternalistically.
↵ii Interestingly, he does not consider an alternative route which is to show that establishing markets violates a right of the potential participants. Some have argued that blackmail—the offer to sell secrecy about one's past actions—is a violation of the right of the purchaser not to be offered such a transaction.