A Comprehensive Overview of Antitrust Law Principles
A complete guide to antitrust law: from Standard Oil and the Sherman Act through the Chicago School debate, big tech cases, the EU Digital Markets...
Welcome to the complete index of every article in our Decision Making collection on When Notes Fly. This page lists every article in the section, organized alphabetically for easy reference. Each piece is researched, written by hand, and grounded in academic sources, professional practice, or empirical data. Whether you are diving into Decision Making for the first time or returning to find a specific article, the index below gives you direct access to the full collection within Concepts.
If you are new to Decision Making, we recommend starting with the foundational explainers and definitions before moving on to specific case studies, applied frameworks, and deeper analytical pieces. Articles are written for thoughtful readers who want substance over summary, with clear explanations of how ideas connect, where they come from, and why they matter. Use this index as a navigational map: skim the titles, read the short summaries, and click through to the pieces that draw your interest. Each article also links to related material so you can follow a thread of ideas across our entire Concepts library.
Most articles in this collection run between 1,500 and 3,000 words. We aim for the kind of explainer that holds up six months later: enough mechanism to be useful, enough nuance to be honest, and enough citation that you can verify the claims yourself. Where the research disagrees or the evidence is thin, we say so. Where a claim is well-established, we say that too. The goal is for you to leave with a working model you can apply, not a vibe you'll forget by Tuesday.
Bookmark this index — it gets fresh entries weekly. New articles are added at the top of the chronological feed and integrated into this alphabetical archive. If you can't find what you are looking for, try the broader Concepts archive for related ideas across all of Concepts, or browse our homepage for the latest writing.
A complete guide to antitrust law: from Standard Oil and the Sherman Act through the Chicago School debate, big tech cases, the EU Digital Markets...
A comprehensive guide to communism covering Marxist theory, Leninism and Stalinism, the Soviet Union, Maoist China, Cuba, and the ongoing debates...
Reference class forecasting ignores your specific plan and uses historical outcomes of similar projects to predict what will actually happen.
Second-order thinking asks not just "what happens next?" but "what happens after that?" The mental model Howard Marks calls essential for...
The rent vs buy debate settled with math — price-to-rent ratios, the 5% rule, opportunity cost of a down payment, and when buying genuinely makes...
Common traps include confirmation bias, sunk cost fallacy, analysis paralysis, and groupthink that lead to poor choices despite good intentions.
An emergency fund of 3-6 months of expenses is the foundation of financial stability. Learn where to keep it, how to build it on any income, and...
Critical thinking is the ability to analyze information objectively, evaluate arguments carefully, and reach well-reasoned conclusions rather than...
Top performers use frameworks like regret minimization and the reversibility test—not harder thinking.
Making many decisions depletes mental energy, leading to worse choices later. Reduce decision fatigue through routines, defaults, and strategic...
Decision journaling is the practice of recording your reasoning at the time of a decision and reviewing outcomes later.
A recession is a significant decline in economic activity lasting more than a few months. Learn the NBER definition, leading indicators, historical...
ESG investing screens companies on environmental, social, and governance factors. Learn how it works, whether it outperforms, and the serious...
Learn how to build a budget that works using the 50/30/20 rule, zero-based budgeting, and envelope method — plus the behavioral science of why...
A research-backed guide to saving money effectively: the behavioral science of present bias, automatic savings, the 50/30/20 rule, zero-based...
A comprehensive guide to civil society: its philosophical origins from Aristotle to Gramsci, Tocqueville's voluntary associations, Putnam's social...
A thorough explanation of financial independence and the FIRE movement: the 4 percent rule, FI number calculation, Lean FIRE, Fat FIRE, Barista...
A complete guide to how credit scores work: FICO score factors and weights, credit utilization strategy, building credit from scratch, error rates...
An in-depth exploration of the rule of law: Dicey's classic formulation, thin versus thick conceptions, Magna Carta, habeas corpus, judicial...
Fiscal policy is how governments use taxation and spending to manage the economy. Learn about Keynesian multipliers, austerity debates, automatic...
Game theory is the mathematical study of strategic interaction. From the Prisoner's Dilemma to nuclear deterrence, this explainer covers Nash...
Learn how to build credit from scratch or repair damaged credit using secured cards, credit-builder loans, and the authorized user strategy.
Index funds vs individual stocks — the performance data, expense ratios, diversification math, and what most investors should actually do with...
Inflation explained: how CPI and PCE measure it, the difference between real and nominal returns, how inflation erodes purchasing power, and major...
International trade theory explains why nations trade, who benefits, and who loses. From Ricardo's comparative advantage to Krugman's New Trade...
A research-backed guide to investing for beginners: index funds, asset allocation, compound interest, dollar-cost averaging, tax-advantaged...
A data-driven look at whether a college degree still pays off in 2026 — ROI by major, earnings premium vs student debt, and when alternatives...
The regret minimization framework is Jeff Bezos's decision-making method: project yourself to age 80 and ask which choice you will regret not...
Long-term thinking means weighing future consequences as seriously as immediate ones. Learn why our brains resist it and the frameworks that help...
Most important decisions happen under uncertainty. Learn expected value thinking, pre-mortems, base rates, and Jeff Bezos's Type 1 vs Type 2...
Learn how to read financial statements: what the income statement, balance sheet, and cash flow statement each show, key ratios to look for, and...
Second-order thinking, inversion, and first principles expose what you're missing. The right mental model turns a hard decision into an obvious one.
A complete guide to microeconomics: consumer and producer theory, market structures, externalities, information asymmetry, public goods, and key...
Moral hazard occurs when protection from consequences encourages riskier behavior. Learn its origins, real-world examples, and how to design...
Personal finance fundamentals explained: budgeting, saving, investing, debt, insurance, and estate planning — with financial literacy statistics...
Pre-mortem analysis is a prospective technique that imagines a project has already failed and works backward to identify causes.
Probabilistic thinking means thinking in likelihoods rather than absolutes. Assign probabilities to outcomes to make better decisions under...
Risk has known probabilities; uncertainty doesn't. With risk you can calculate odds, with uncertainty you can't even assign probabilities to outcomes.
Britain and France had signed a treaty to build the Concorde supersonic jet in 1962. By 1968 it was clear the aircraft would never be commercially...
An index fund tracks a market index at minimal cost. Backed by decades of SPIVA data and Nobel Prize research, learn why passive investing beats...
A clear-eyed look at passive income: the myth versus reality, Robert Kiyosaki's influence, the IRS definition, dividend investing, rental property,...
Zero-sum thinking assumes one person's gain requires another's loss. Learn when it's accurate, when it's a fallacy, and how fixed-pie bias poisons...
A practical framework for thinking about risk: expected value vs utility, availability heuristic, tail risks, diversification, and the Kelly...
The availability bias causes investors to overweight recent dramatic events. Learn how it distorts portfolio decisions and how to counteract it...
Exponential growth compounds on itself, doubling repeatedly. Learn why humans instinctively think linearly, how the chessboard problem illustrates...
Why smart people make bad financial decisions, and what behavioral economics, psychology, and decades of research reveal about how to think about...
Keynesian economics holds that aggregate demand drives output and employment and that government fiscal policy can stabilize economies during...
A clear explanation of how the stock market works: exchanges, how prices are set, indices, market capitalization, and why index funds outperform...
What is wealth inequality? The Gini coefficient, Piketty's r > g thesis, wealth vs income data, top 1% statistics, what drives inequality, and the...
How financial risk management tools — portfolio insurance, VaR, securitization — created the crises they were designed to prevent.
Value investing means buying stocks worth more than their price. Learn Graham's intrinsic value concept, Buffett's adaptations, and whether the...
Research-backed analysis of wealth mindset differences: how high-net-worth individuals actually think about money, risk, time, and opportunity —...
Behavioral economics combines psychology and economics to explain how people actually make decisions. This explainer covers prospect theory, loss aversion, nudge theory, cognitive biases, and why the rational actor model was wrong.
Behavioral economics combines psychology and economics to explain how people actually make decisions.
Behavioral finance explains how psychological biases distort investment decisions and market prices.
A comprehensive guide to communism covering Marxist theory, Leninism and Stalinism, the Soviet Union, Maoist China, Cuba, and the ongoing debates about why communism failed and what, if anything, remains of its ideas.
Compound interest explained: the math, the Rule of 72, and real examples showing why starting early beats saving more later.
Not all debt is equal. Understand how interest works, what separates good debt from bad debt, and when borrowing is a tool vs a trap.
Decision making under uncertainty means choosing when you don't know all outcomes or probabilities. Use probabilistic thinking and scenarios.
Game theory is the mathematical study of strategic interaction. From the Prisoner's Dilemma to nuclear deterrence, this explainer covers Nash equilibria, cooperation, auctions, signaling, and why the theory changed economics, biology, and politica...
Labor economics studies how wages are determined, why workers get paid what they do, and how labor markets function.
Money is one of humanity's most consequential inventions. This guide covers the history of money from Mesopotamian clay tablets to cryptocurrency,...
Money is one of humanity's most consequential inventions. This guide covers the history of money from Mesopotamian clay tablets to cryptocurrency, how money is created by banks, what gives it value, and what Modern Monetary Theory claims.
Nobel laureate Robert Shiller argues that economic narratives spread like viruses and drive market booms and busts. Learn how stories shape economies.
Opportunity cost is what you give up when you choose one option over another. Learn why it's the foundation of economic thinking and better decisions.
Political philosophy asks what justifies state power, what justice requires, and how free societies should be organized.
Political philosophy asks what justifies state power, what justice requires, and how free societies should be organized. From Plato and Hobbes to Rawls, Nozick, and Habermas, here is a complete guide to the field.
Welfare economics asks how to measure and improve societal wellbeing. Learn about Pareto efficiency, Kaldor-Hicks, the Easterlin paradox, and happiness research.
Welfare economics asks how to measure and improve societal wellbeing. Learn about Pareto efficiency, Kaldor-Hicks, the Easterlin paradox, and...
The principal-agent problem occurs when someone acts on your behalf but has different incentives.
Kahneman and Klein agreed on two conditions that make intuition trustworthy. Miss either one and your gut is lying to you.
Poor decision framing means asking the wrong question. 'Should I quit?' differs from 'What career maximizes growth?' Frame determines outcomes.
Rational decisions feel wrong because your brain evolved for survival, not optimization. Emotions trigger fast but logic requires slow deliberation.
Smart people make terrible financial decisions all the time. Behavioral economics explains the cognitive biases — loss aversion, present bias,...
The winner's curse explains why the highest bidder often overpays. Learn how it affects M&A deals, IPOs, talent bidding wars, and how to avoid it.