Endörfer has recently argued that proponents of the harm principle are wrong to exempt market harms as potential justifications for state interference. I argue that – contrary to suggestions in Endörfer’s article – John Stuart Mill did not exempt market harms from his harm principle. On Mill’s view, the state can (as a matter of principle) legitimately interfere with free markets to prevent market harms where they occur but, on the whole, it is better policy not to interfere. Mill’s general preference for free trade rests on utilitarian considerations and not on his harm principle, which does not exclude market harms.
