What marks commercial exchange is that it’s “impersonal”: who it is that is selling something to us, or buying something from us, should in principle be entirely irrelevant. We are simply comparing the value or two objects. True, as with any principle, in practice, this is rarely completely true. There has to be some minimal element of trust for a transaction to be carried out at all, and, unless one is dealing with a vending machine, that usually requires some outward display of sociality. Even in the most impersonal shopping mall or supermarket, clerks are expected to at least simulate
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