The Psychology of Judgment and Decision Making
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The Psychology of Judgment and Decision Making

Scott Plous

4.3994 learners

Written by Scott Plous, *The Psychology of Judgment and Decision Making* offers a comprehensive exploration of the cognitive biases, psychological mechanisms, and social influences that drive human decision-making. Drawing on decades of landmark experiments and real-world case studies, the book breaks down why people often make irrational choices—from the hostility media effect and cognitive dissonance to anchoring bias and overconfidence. It examines core theories like prospect theory and expected utility theory, contrasts intuitive judgment shortcuts with rational decision models, and explores how social dynamics, groupthink, and self-serving biases shape individual and collective choices. Additionally, it delves into the evolutionary roots of these biases and their practical applications across fields like public policy, business, and healthcare, equipping readers with insights to recognize and mitigate common decision pitfalls.

cognitive dissonanceConfirmation BiasGroupthinkHindsight BiasProspect Theory
The Little Book of Behavioral Investing
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The Little Book of Behavioral Investing

James Montier

4.3848 learners

In The Little Book of Behavioral Investing, James Montier exposes the hidden psychological traps that trip up even seasoned investors—from overconfidence and loss aversion to confirmation bias and herd mentality. Packed with real-world experiments, iconic investing case studies, and insights from legends like Warren Buffett and Benjamin Graham, this book breaks down why we make irrational decisions when markets swing, and how to build disciplined strategies to fight back. You’ll learn to use pre-commitment plans to avoid impulsive trades, adopt a “kill the company” mindset to counter confirmation bias, and embrace contrarian thinking to capitalize on market bubbles and bear markets. Montier’s no-nonsense, relatable approach turns complex behavioral finance concepts into actionable steps, helping you rewire your brain for long-term investing success instead of chasing short-term wins.

Loss AversionEndowment EffectConfirmation BiasOverconfidenceContrarian Investing
Don't Be a Normal Fool
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Don't Be a Normal Fool

Christopher Hsee

3.5722 learners

Drawing on behavioral economics and real-world case studies, *Don't Be a Normal Fool* exposes the hidden cognitive biases that drive irrational decisions in finance, career, and daily life. Author Christopher Hsee breaks down core mental traps: mental accounting (how we categorize and spend money differently based on its source), transaction bias (fixating on deals over utility or percentages over actual savings), sunk cost fallacy (chasing lost investments), overconfidence (overestimating our abilities), and adaptive bias (misjudging long-term emotional impacts of events). Through relatable examples—from splurging windfalls to clinging to failing projects—Hsee explains how these biases skew judgment, then offers practical strategies to overcome them. Readers learn to recognize these traps, shift to rational decision-making, and optimize their choices to avoid common pitfalls that hinder financial stability and intentional living.

Cognitive BiasBehavioral EconomicsSunk Cost FallacyRational Decision-MakingOverconfidence
The Art of Thinking Clearly
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The Art of Thinking Clearly

Rolf Dobelli

4.2466 learners

In *The Art of Thinking Clearly*, Rolf Dobelli demystifies the hidden cognitive biases that skew our daily decisions—from the survivorship bias that makes us overestimate success odds to the sunk cost fallacy that traps us in bad choices. Using relatable real-world examples, from business failures to everyday mistakes, he breaks down dozens of common thinking errors, explaining how our evolutionary instincts and social conditioning lead us astray. Dobelli doesn’t just highlight these flaws; he offers practical, actionable strategies to recognize and counteract them, helping readers make more rational, informed choices in career, finance, relationships, and life. Whether you’re avoiding the bandwagon effect or escaping the confirmation bias echo chamber, this book is a toolkit for sharpening your critical thinking and navigating the world with greater clarity.

Survivorship BiasLoss AversionSunk Cost FallacyThinking BiasesOverconfidence Effect
Scenario

327 Treasury Bond Lesson

The author won 6.9M in one day during the 1995 327 event but lost it all later. He learned: Early success can fuel overconfidence and reckless gambling.

Case StudyOverconfidenceRisk Lesson
Concept

Risk Blind Spots

Areas where your biases (like overconfidence) make you miss or downplay risks—you don’t see what’s right in front of you.

Cognitive BiasesRisk Awareness
Concept

Rational Economic Man

Traditional economics assumes people are fully rational: optimal choices, no biases, markets reach equilibrium. But real people struggle with complex decisions and have biases like overconfidence.

rationalityBehavioral EconomicsTraditional Economics
Insight

Overconfidence Drives Trading

People overestimate their knowledge and judgment accuracy, leading to frequent trading in speculative markets.

Psychological BiasInvestment Behavior
View

Humility for Good Predictions

Admit uncertainty, avoid overconfidence, and be willing to change your mind—key traits of superforecasters.

PredictionHumility
Insight

Self-Doubt Can Be A Good Trait

Proper level of self-doubt pushes people to avoid complacency, refine their work, and test new strategies. It is far more useful than overconfidence for long term steady progress.

MindsetPerformanceSelf Doubt
Concept

Growth Stagnation

Unpredicted growth halt after a long boom, usually caused by overconfidence, ignored user demands, or over-reliance on a single channel.

InnovationBusiness Risklong term growth