Libertarian paternalism

In Nudge: Improving Decisions About Health, Wealth, and Happiness Libertarian paternalism is the union of two political notions that are commonly viewed as being at odds (to the point of oxymoron) libertarianism and paternalism. Sunstein and Thaler state that "the libertarian aspect of our strategies lies in the straightforward insistence that, in general, people should be free to do what they like-and to opt out of undesirable arrangements if they want to do so".] The paternalistic portion of the term "lies in the claim that it is legitimate for choice architects to try to influence people's behavior in order to make their lives longer, healthier, and better".