Nudge: Improving Decisions about Health, Wealth, and Happiness Book by Cass R. Sunstein, Richard H. Thaler, and Richard Thaler

"Nudge: Improving Decisions about Health, Wealth, and Happiness" by Richard H. Thaler and Cass R. Sunstein explores how small changes in the way choices are presented (a concept called "choice architecture") can significantly influence people's decisions without restricting their freedom. The authors introduce the idea of libertarian paternalism, arguing that governments and organizations can design policies that "nudge" individuals toward better choices in areas like health, finance, and public policy. Using behavioral economics and psychology, the book demonstrates how subtle interventions—such as automatic enrollment in retirement savings plans or placing healthier foods at eye level—can lead to better outcomes.