Habits, Nudges, and Consent

I distinguish between 'hard nudges' and 'soft nudges', arguing that it is possible to show that the latter can be compatible with informed consent - as Cohen has recently suggested; but that the real challenge is the compatibility of the former. Hard nudges are the more effective nudges because they work on less than conscious mechanisms such as those underlying our habits: whether those influences - which are often beyond the subject's awareness - can be reconciled with informed consent in health care is the more challenging question. I suggest two directions for possible answers: on the one hand, looking at the growing empirical literature on mindless judgement and behaviour; and on the other hand considering a more diversified conception of consent, which I sketch.