우리 인간은 과연 얼마나 합리적인가? | 리처드 탈러, 행동경제학, 승자의 저주

Professor Thaler explains that his book, 'The Winner’s Curse,' began as a series of articles for the Journal of Economic Perspectives nearly 40 years ago. The journal aimed to publish non-technical articles accessible to a broad audience of economists, and these columns explored ‘anomalies,’ which are results that contradict established economic theories. He cites Copernicus' discovery of moons orbiting Jupiter as an early example of such an anomaly, challenging the prevailing geocentric view.

To update 'The Winner’s Curse,' Thaler collaborated with a younger colleague, Alex Imas. They meticulously re-examined the original chapters and selected the most compelling ones for inclusion in their new book, 'Behavioral Economics Anomalies Then and Now.' A key feature of this revised edition is an online appendix containing instructions to replicate each experiment, designed specifically to be useful in educational settings.

Thaler critiques the core economic assumption that individuals consistently optimize their choices. He uses the example of grocery shopping, highlighting how people often rely on shortcuts and heuristics rather than exhaustively evaluating every option due to the complexity of decision-making. While optimization serves as a starting point for economic models, it frequently falls short in explaining real-world behavior.

Thaler emphasizes that standard economics largely ignores the issue of self-control. He draws parallels to narratives like Adam and Eve's temptation and Odysseus’s binding himself to the mast, illustrating how individuals often struggle with willpower. Recognizing these self-control problems is crucial for understanding behaviors such as overeating, undersaving, and procrastination.

Richard Thaler argues that democracy, like capitalism, is imperfect but preferable to alternatives due to inherent human limitations. He emphasizes the need for political science and economics to converge on designing systems that account for people's limited information and time when voting, acknowledging that individual votes often feel insignificant. This perspective highlights a pragmatic acceptance of existing structures while advocating for improvements.

Thaler discusses the issue of “dark patterns,” manipulative design techniques used by companies to mislead consumers, citing his own experience with recurring memberships. He supports regulation to protect consumers from these practices, referencing a Biden administration rule requiring equal ease of subscription and unsubscription. This demonstrates a concern for consumer protection in an increasingly digital landscape.

Thaler explores the potential benefits of using AI, exemplified by GPS navigation systems, to improve decision-making in areas like healthcare and retirement savings. He envisions a future where AI provides options rather than dictating choices, acting as a guide rather than an authority. However, he also cautions against the risks of biased or manipulative AI algorithms.

Thaler suggests that a key challenge for behavioral economics lies in identifying what makes a problem ‘hard’ – situations where people struggle to optimize and rely on shortcuts. He uses the example of solving a word puzzle (“deny”) as an analogy, demonstrating how seemingly simple problems can be surprisingly difficult, highlighting the need to understand these cognitive hurdles to develop better models.