A review of nudges: Definitions, justifications, effectiveness

In 2008, the behavioral economist Richard Thaler and legal scholar Cass Sunstein published a book in which they advocated novel approach to public policy based on notion of “nudge.” Roughly speaking, nudge is an intervention decisional context that steers people's decisions by acting their cognitive biases. The generated intense debate across different disciplines proved popular with many makers around world. present article reviews research nudges focusing three main dimensions: (1) exact definition nudges; (2) justification policies, focus “libertarian paternalism”; (3) effectiveness nudges, both over time comparison standard policies.