Passage A:

Public policy has long relied on two blunt instruments: mandates that compel behavior and incentives that price it. A third approach, choice architecture, works instead through the design of the settings in which decisions are made. Because people rarely deliberate over every option, defaults, orderings, and framings exert a quiet but decisive influence on what they choose. Enrolling employees in a retirement plan automatically, while leaving them free to opt out, dramatically raises participation without foreclosing any alternative. Such nudges alter behavior predictably without removing options or meaningfully changing economic incentives. The appeal of the approach is that it reconciles two values often thought to be in tension. It improves outcomes - more saving, healthier diets, higher rates of organ donation - while preserving the individual's ultimate authority to choose otherwise. Because a nudge can always be declined at negligible cost, it respects autonomy in the sense that matters most: the chooser remains free to depart from the path laid out. The critic who objects merely that defaults influence us proves too much, for there is no such thing as a neutral choice architecture. Some arrangement of options must exist; a menu must be printed in some order; a form must carry some default. Given that influence is therefore unavoidable, the responsible course is not to pretend at neutrality but to arrange the influence deliberately, transparently where possible, and in the chooser's own interest.

Passage B:

That every environment shapes choice is not in dispute. What the defenders of nudging elide is the difference between influences that engage a person's reason and those that bypass it. A tax on cigarettes changes behavior through a consideration the smoker can weigh and reject; a default that exploits inertia, or a framing that leverages loss aversion, works precisely because the chooser does not notice it operating. Influence that succeeds by evading the subject's scrutiny is closer to manipulation than to persuasion, whatever the benevolence of its aims. The reassurance that a nudge can always be declined understates the difficulty. If the mechanism depends on the chooser's failure to deliberate, the merely theoretical availability of an exit is cold comfort, for the nudge is calibrated precisely so that the exit goes untaken. Nor is the objection dissolved by the observation that some architecture is unavoidable. That every road must have a camber does not license the engineer to bank it secretly toward a destination of his own choosing. The gravest worry is democratic. Nudges are typically devised by administrators, tested for their effectiveness rather than debated for their legitimacy, and justified by appeal to an interest said to be the chooser's own but which the chooser was never asked to endorse. What the practice preserves is the outward form of choice; what it quietly relocates is the substance.