 Exploitation thus involves \(A\) unfairly benefitting from an interaction with B. But what exactly does it mean to benefit unfairly? One natural response to this question is to conceive of unfairness as benefitting \(A\) at \(B\)’s expense. Perhaps exploitation advances the interests of \(A\) while harming \(B\). Exploitation, thus understood, is a kind of parasitism. Or, as Allen Buchanan defines it, exploitation is “the harmful, merely instrumental utilization of him or his capacities, for one’s own advantage or for the sake of one’s own ends” (Buchanan 1985: 87).