◆ ARTICLES
The Library
420 articles on personal finance, investing, and the economy — filter by topic, sort, or search for the one you came for.
33 articles · page 1 of 2
◆ Spotlight
◆ IMPERFECT COMPETITION
Advertising Isn't Just Persuasion. Here Is What It Actually Does to Markets.
The belief that advertising only manipulates is incomplete. Economists find it also carries real information, signals quality, and can sharpen competition.
- The popular view that advertising is pure persuasion and waste is incomplete — economists identify a substantial informational role alongside the persuasive one
- Informative advertising tells buyers that a product exists, what it costs, and where to get it, which lowers search costs and can intensify price competition
- Even advertising with little hard content can act as a credible signal: heavy ad spending shows a firm expects repeat business, which only pays if the product is good
◆ ECONOMICS FUNDAMENTALS
The Rational Actor: What Economics Assumes About You — and Where It's Right
The rational actor model assumes people make consistent, self-interested decisions that maximize their well-being.
◆ BEHAVIORAL FINANCE
Psychology of Spending: Triggers, Impulse Behavior, and Lifestyle Habits
Understand why you spend: triggers, emotional spending, lifestyle inflation, and how to identify your personal spending patterns.
◆ BEHAVIORAL FINANCE
Loss Aversion and Prospect Theory: Why Losses Hurt More Than Equivalent Gains Feel Good
Losing $100 hurts about twice as much as gaining $100 feels good. That asymmetry, formalized in prospect theory, distorts how you invest and sell.
◆ BEHAVIORAL FINANCE
Prospect Theory: How People Actually Evaluate Gains and Losses
Prospect theory, developed by Kahneman and Tversky, describes how people actually evaluate outcomes: relative to a reference point, with losses hurting more…
◆ BEHAVIORAL FINANCE
What Is Herd Mentality?
The tendency to follow and mimic the financial decisions of a larger group. Learn how herd behavior amplifies bubbles and crashes.
◆ BEHAVIORAL FINANCE
Nudge Theory: Designing Choice Environments to Improve Decisions Without Mandating Them
A nudge changes how choices are presented — not what's allowed — to steer better decisions. Auto-enrollment in 401(k)s is the proof it works.
◆ BEHAVIORAL FINANCE
Loss Aversion: Why a Loss Hurts Twice as Much as a Gain Feels Good
Loss aversion makes losses feel about twice as painful as equal gains. Here's how that single bias drives panic-selling, holding losers, and under-investing.
◆ IMPERFECT COMPETITION
Product Differentiation: How Sellers Escape Pure Price Competition
Product differentiation is the process of distinguishing a product from competitors' offerings through quality, features, branding, design, or customer…
◆ BEHAVIORAL FINANCE
What Is Sunk Cost Fallacy?
The mistake of continuing to invest resources in something because of past irrecoverable costs. Learn why past spending is irrelevant to future decisions.
◆ BEHAVIORAL FINANCE
Cognitive Biases That Silently Drain Your Wealth
Cognitive biases quietly sabotage smart investors. Learn the six that do the most financial damage and how to build systems that outsmart them.
◆ BEHAVIORAL FINANCE
Status Quo Bias: Why People Stick With What They Have
Status quo bias is the tendency to prefer the current state of affairs and resist change, even when alternatives are objectively superior.
◆ BEHAVIORAL FINANCE
What Is Loss Aversion?
The psychological tendency to feel losses more strongly than equivalent gains. Understand how loss aversion drives irrational financial decisions.
◆ BEHAVIORAL FINANCE
What Is the Framing Effect?
The influence that how information is presented has on decision-making. Learn how framing manipulates perception without changing reality.
◆ BEHAVIORAL FINANCE
What Is Overconfidence Bias?
The tendency to overestimate one's ability to predict markets and pick winning stocks. Learn why most active traders underperform.
◆ IMPERFECT COMPETITION
The Prisoner's Dilemma: Why Rational Choices Produce Bad Outcomes
The Prisoner's Dilemma is a game in which two rational players each choose a dominant strategy that makes both worse off than if they had cooperated.
◆ BEHAVIORAL FINANCE
Bounded Rationality: Why Real Decision-Making Isn't Perfectly Rational
Bounded rationality is the concept that real decision-makers are rational within limits — constrained by incomplete information, limited cognitive capacity,…