Behavioral finance

Framing Effect and Investment Risk Perception How framing effect in investment risk perception causes identical investments to feel safer or riskier depending on whether they are described as a gain or a loss.

Framing Effect: Gains vs Losses in Financial Decisions Framing effect in finance: how presenting the same outcome as a gain or loss changes investor behavior, even when expected values are identical.

FUD FUD — fear, uncertainty, and doubt — is the spread of negative information (real or speculative) that drives panic selling and market crashes independent of changes in fundamentals.

Fund Manager Career Risk How the fear of career termination drives investment managers toward consensus positions and away from bold, differentiated bets.

Fund Manager Cash Levels as a Sentiment Indicator Fund manager cash levels reflect institutional appetite for risk; high cash signals caution, low cash signals full deployment and optimism.

Fundamental Attribution Error The cognitive bias of attributing others' actions to their personality or character rather than situational or environmental factors.

Fungibility Blindness: Why We Treat Money Differently by Source Why people spend a tax refund freely but hoard a paycheck: fungibility blindness lets people treat identical dollars as separate mental accounts. The cost to budgeting.

Fungibility Failure Why people treat economically identical dollars differently depending on which mental account or source they come from.

Gambler's Fallacy Cognitive bias where past outcomes incorrectly influence predictions of independent events.

Gamblers fallacy Gamblers fallacy is the false belief that past results in a random process make certain outcomes more or less likely in the future, such as believing a string of losses makes a win more likely.

Get-Evenitis The compulsion to hold a losing investment until it returns to its cost basis, rather than selling or reallocating rationally.

Gift Card Mental Accounting: Why Gift Money Gets Spent Differently Why people spend gift cards on frivolous purchases they'd never buy with cash, and how the label on money changes spending behavior.

Glamour Stock Underperformance Glamour stocks with high valuations underperform value stocks over years because investors extrapolate recent earnings growth that later slows.

Gold-to-Equity Ratio as a Fear Gauge How the relative price performance of gold versus stocks reveals shifts in investor sentiment between risk-aversion and growth-seeking behavior.

Google Trends as a Stock Market Sentiment Gauge How search-query volume for finance terms signals retail investor anxiety or optimism and predicts market moves.

Greed Cycle Cyclical periods where rising asset prices and falling risk premiums fuel excess leverage, margin debt, and speculative positioning.

Groupthink in Investment Committees How committee dynamics suppress minority views and drive institutional investors toward correlated, herd-like decisions despite diverse individual expertise.

Halo effect Halo effect is the tendency to let one prominent positive quality or trait shape overall judgment of a person or thing, causing you to assume other positive qualities are also present.

Halo Effect A cognitive bias where a single positive trait or impression of a person or company inflates overall perception and judgment.

Hedonic Editing The four rules people use to combine and frame gains and losses for maximum felt wellbeing, and how framing shapes financial decisions.

Herd behavior Herd behavior is the tendency of individuals to follow the actions and beliefs of a large group, often at the expense of their own judgment, creating self-reinforcing market cycles.

Herding Behavior in Small-Cap Stocks Herding behavior in small-cap stocks: why limited liquidity and sparse analyst coverage amplify coordinated buying and selling pressure.

Herding in Emerging Market Funds Why capital flows into emerging-market funds are herd-driven, creating boom-bust cycles that amplify volatility in frontier economies.

Herding in ETF Flows How synchronized retail and institutional inflows and outflows in ETFs amplify price dislocations beyond fundamentals.

Herding in Markets Behavior where investors follow crowd actions, amplifying bubbles, crashes, and market inefficiency.

Herding in Mutual Fund Flows Herding behavior in mutual fund flows: retail investors collectively pile into or exit funds in lockstep, amplifying price swings beyond what fundamentals support.

Herding in Pension Fund Asset Allocation How pension fund managers converge on similar asset allocations, creating systemic crowding and amplifying market crashes.

Herding in Prediction and Betting Markets Herding behavior prediction markets betting: how visible odds movements trigger self-reinforcing price shifts disconnected from true probabilities.

Herding investors Herding investors is the observed phenomenon of professional and retail investors moving in and out of assets in synchronized waves, amplifying market cycles and creating bubbles and crashes independent of fundamental changes.

High-Beta Return Puzzle Why high-beta stocks deliver lower risk-adjusted returns than low-beta stocks, contradicting capital asset pricing theory and what drives this anomaly.

High-Yield Bond Issuance Volume as a Sentiment Signal High-yield bond issuance volume reflects investor risk appetite; surges typically mark late-cycle euphoria before credit market stress.

Hindsight bias Hindsight bias is the tendency to see past events as more predictable than they were, leading to overconfidence in your ability to predict future events and regret over missed opportunities.

Holiday Effect The pattern of above-average returns on the trading day immediately before public holidays across multiple markets.

Home-Country Bias as a Form of Herding Home-country bias in investing reflects social herding: investors overweight domestic equities because peers do, not because risk fundamentals justify it.

Hot Hand Bias Cognitive bias of believing that past success predicts future success, even when outcomes are statistically independent.

Hot-hand fallacy Hot-hand fallacy is the belief that success in the recent past makes success more likely in the immediate future, such as believing a fund manager's recent wins predict continued wins.

House Money Effect Tendency to take greater risks with gains viewed as temporary windfalls, rather than with one's core wealth.

House Money Effect in Investing How the house money effect in investing causes traders to take larger risks with profits than with original capital, rooted in mental accounting.

House Money Effect: Taking Bigger Risks With Investment Gains How the house money effect causes investors to treat unrealized gains as free money and take excessive risks they'd reject with original capital.

How Composite Sentiment Indicators Are Built Composite sentiment indicators combine multiple signals into a single index; construction requires weighting, normalization, backtesting to avoid false precision.

How Inheritance Is Mentally Accounted Differently Than Earned Income Why inherited or gifted money is psychologically categorized separately from wages, leading to riskier spending and investment choices.

How Loss Aversion Affects Asset Allocation Decisions Explore how loss aversion drives investors toward overly conservative portfolios despite higher risk tolerance.

How Loss Aversion Affects Stop-Loss Placement How fear of locking in a loss leads traders to widen or remove stop-loss orders, converting manageable drawdowns into catastrophic ones.

How Loss Aversion Drives the Disposition Effect The psychological mechanism linking loss aversion to early selling of winners and reluctant holding of losers, amplifying costs.

How Mental Accounts Distort Personal Savings Goals Why segregating money by purpose—emergency fund, vacation, debt payoff—prevents optimal allocation and leaves money earning nothing while debt accrues.

Hyperbolic Discounting Why investors systematically prefer smaller-sooner rewards over larger-later ones, producing time-inconsistent financial choices.

Hyperbolic Discounting and Debt Payoff Behavior Hyperbolic discounting explains why people delay paying debt despite clear long-term costs. Learn how non-linear time preference creates a self-defeating cycle.

Identifiable Victim Effect in Charitable and ESG Giving Why donors and ESG investors respond more to vivid individual stories than statistical harm, skewing charitable and sustainable capital allocation.

Idiosyncratic Volatility Puzzle The idiosyncratic volatility puzzle reveals that stocks with high firm-specific risk deliver lower returns, contradicting basic risk-return theory.

Illusion of control Illusion of control is the tendency to believe you have more influence over outcomes than you actually do, leading to overconfidence and excessive action in fundamentally random situations.

Illusion of Control Cognitive bias where individuals overestimate their ability to influence or control outcomes, especially in uncertain or random events.

Illusion of skill Illusion of skill is the mistake of attributing successful outcomes to one's own skill when they are actually the result of luck in a domain where random variation dominates.

Illusion of Validity in Stock Analysis Why analysts feel high confidence in predictions built from internally consistent but unreliable data patterns—and how the illusion of validity distorts investment decisions.

In-Group Bias in Investing The tendency to favour familiar domestic or culturally close companies over equivalent foreign alternatives.

Industry Rotation Crowding When many fund managers rotate into the same sector simultaneously, crowding risk in sector rotation drives valuation inflation and reversal pressure.

Information Cascade A phenomenon where sequential traders ignore their own private information and instead follow the actions of others, creating a chain of imitative decisions.

Information Overload Bias How excess data degrades investment decisions, pushing investors towards simplistic rules and false patterns.

Information Overload in Investor Decision-Making Information overload in investor decision-making reduces portfolio quality: excess data induces choice paralysis, inaction, and reliance on defaults over reasoned analysis.

Inherited Money vs Earned Income: Why Source Changes How We Spend Why inherited money vs earned income gets treated as separate mental accounts, leading to loose spending on windfalls and protective saving from wages.

Insider Buying and Selling as a Sentiment Signal How clusters of insider buying or selling reveal management confidence in a company's future and influence market sentiment and stock performance.