“Nudge” by Richard Thaler and Cass Sunstein

While most people like to believe that their decisions are their own,  behavioral economists Richard Thaler and Cass Sunstein argue that the opposite is largely true in their book called “Nudge: Improving Decisions About Health, Wealth, and Happiness” (2008).  Without realizing it, people are constantly being shaped by the environments around them, and their book is about learning to recognize these invisible influences. 

Thaler and Sunstein introduce the term “choice architecture” to describe the way options are presented to people. For example, a cafeteria that puts fruit at eye level and cookies in the back is nudging students toward healthier choices. A retirement plan that automatically enrolls employees is nudging them to save. In both situations, no one is forced to do anything. But the design of the environment subtly tilts the outcome. The authors argue that this kind of influence is unavoidable in our world. Every choice environment has a structure, and that structure always has an effect on us, whether it is intentional or not. 

Central to this idea is how differently people actually make decisions compared to how we assume they do. The stark distinction between two types of decision-makers is another central component of the book. The “Econ” is the perfectly calculating, rational, yet unrealistic individual who isn’t impulsive and makes optimal decisions under pressure. The “Human” is what we all are: prone to distraction, heavily influenced by default settings, easily peer pressured and a victim to present bias. Most of our institutions, from healthcare to financial planning, are designed for the Econ.Thaler and Sunstein’s argument is that they should be designed for the Human instead and nowhere is this more apparent than in the power of defaults.

One of the book’s most compelling findings involves defaults: what happens when people don’t actively make a choice. Interesting examples include: organ donation rates vary dramatically between countries not because of cultural differences, but simply because of whether donation is opt-in (you have to actively choose to participate) or opt-out (you’re automatically enrolled unless you say otherwise). The same pattern shows up in retirement savings and healthcare enrollment. Whoever controls the default, it turns out, has enormous influence over what most people end up doing, even when people never realize a choice was made for them. 

These nudges have been incredibly helpful in my life as a student. Whether it is putting my phone down or starting an assignment early, Thaler and Sunstein argue that it is less of a willpower problem but rather a design problem. Small choices built into the environment, like what’s easiest to reach for or what’s already set up for you, quietly shape behavior before you even get a chance to think. These nudges work both ways, as the ones that could help you save money or make healthier choices are the same ones keeping you on Instagram longer than you wanted to be. Overall, “Nudge” is an eye-opening look at how decisions are made. For students beginning to pay attention to the systems around them, it offers a fresh way of seeing the influences on your everyday decisions.