Elisabeth Costa
Author. Behavioural Scientist. Coach.
I help people make better decisions. As a behavioral scientist, I've spent over a decade running experiments all over the world, uncovering what truly drives human behavior and how to help people make better choices for themselves.
My upcoming book Boost, co-authored with Prof. David Halpern, shows how we can regain agency by strengthening our decision-making skills—at work, at home, and in life.
Boost - on sale November 2026
"World-leading researchers on human behavior and decision-making equip us with the knowledge, tools, and techniques to become better decision makers—and ultimately improve the world around us—in this powerful guide that builds on the insights of the influential bestseller Nudge."
Boost puts humans back in the driver’s seat, empowering them to regain agency so they can shape—rather than be manipulated by—the forces around them. Boost equips us with knowledge, tools and techniques to boost our own decision-making, and shows how we can shape the world around us to make it easier for everyone to choose well. Against the backdrop of rapidly evolving AI, Boost ultimately asks us to make the biggest choice of all: to decide what kind of humans we want to be.