For better health care, embrace irrationality | David Asch

Episode Summary

Executive Summary: David Ashe argues that improving health care depends less on giving people more information and more on designing environments that work with predictable human irrationality. Using examples from seatbelts, medication adherence, defaults, loss aversion, social proof, and regret, he shows how behavioral economics can reliably change health behavior and save money and lives.

Main Topics: Behavioral deficits vs. knowledge deficits (Priority: 5/5): The talk opens with John Corzine’s seatbelt nonuse to show that people often know the right action but fail to do it, so health problems are frequently behavior problems rather than information problems. Behavioral economics as a practical tool (Priority: 5/5): Ashe contrasts traditional education- and rational-choice-based approaches with behavioral economics, which leverages predictable irrationality to design better interventions. Present bias, regret, and loss aversion (Priority: 5/5): He explains how immediate rewards and anticipated regret shape choices, then shows how lotteries and loss-framed incentives can improve medication adherence and physical activity. Choice architecture and defaults (Priority: 4/5): Small design changes, like defaulting prescriptions to generics or placing a fly image in a urinal, can dramatically shift behavior by making the desired action easier or more automatic. Financial incentives and their limits (Priority: 4/5): Money can motivate behavior when paired with psychology, but poorly designed fines can backfire by undermining intrinsic motivation and social norms, as seen in daycare late-pickup penalties. Social influence and observability (Priority: 4/5): People behave better when they feel observed or when they see peers modeling the desired behavior, illustrated by handwashing studies and seatbelt use on Batman.

Key Arguments: Health care improvement requires behavior change, not just better information. People are irrational in predictable ways, and those patterns can be used to design effective interventions. Present bias makes immediate costs outweigh distant health benefits, reducing adherence to medications and healthy habits. Loss-framed incentives are more motivating than equivalent gain-framed incentives because losses loom larger than gains. Anticipated regret can be harnessed to improve adherence, as in lottery-based medication programs. Defaults and environmental cues can produce large, durable behavior changes with minimal effort. Financial penalties can backfire by weakening intrinsic motivation and social norms. Social observation and peer modeling are powerful drivers of health behavior change.

Data Points: John Corzine injury severity: multiple broken bones, multiple lacerations, 7 units of blood, mechanical ventilator, several surgeries - Describes the consequences of his unbelted car crash Medication nonadherence: Almost half - Patients prescribed high blood pressure pills who stop taking them within a year Hospital savings from generic-default software: $32 million - Savings over two and a half years after defaulting prescriptions to generics Walking goal: 7,000 steps - Daily target used in the step-count intervention Gain-framed incentive: $1.40 per day / $42 per month - Reward for walking 7,000 steps Loss-framed incentive: $42 upfront, minus $1.40 for each day under goal - Virtual account used to frame the same incentive as a loss Effect of loss framing: 50% more often - Participants met the step goal more frequently under loss framing than in control Daycare fine: 10 shekels (about $3) - Penalty for late pickup in the Israeli daycare example Handwashing intervention effect: More than doubled - ICU handwashing rates after posting eyes over the sink

Pivotal Quotes: "John Corzine did not have a knowledge deficit. He had a behavior deficit." — David Ashe: Explaining why information alone often fails to change health behavior "Forewarned is forearmed." — David Ashe: Describing how predictable irrationality can be used to design better interventions "Harnessing that irrationality, that may be the most rational move of all." — David Ashe: Closing argument that behavioral economics should be central to health care improvement

Implications: Health systems should redesign defaults, incentives, and social cues to make healthy behavior easier and more visible. Behavioral economics can improve adherence, prevention, and cost control more effectively than education alone.