Game Theory & Strategy

Watch

• What game theory teaches us about war | Simon Sinek ↗TED Archive
• 3 game theory tactics, explained ↗Big Think
• How to Win with Game Theory & Defeat Smart Opponents | Kevin Zollman | Big Think ↗Big Think
• Game Theory ↗Yale University

Read

• The Art of Strategy: A Game Theorist's Guide to Success in Business and Life ↗This accessible guide translates complex game theory into practical strategies for navigating everyday dilemmas, from business negotiations to personal decisions.Avinash K. Dixit and Barry J. Nalebuff
• The Strategy of Conflict ↗A seminal work exploring the logic of bargaining and deterrence, revealing how rational actors can achieve their aims through credible threats and commitments.Thomas C. Schelling
• The Evolution of Cooperation ↗This groundbreaking study demonstrates how cooperation can emerge and thrive even among self-interested individuals, using the iterated Prisoner's Dilemma as its central lens.Robert Axelrod
• Equilibrium Points in N-Person GamesThe foundational mathematical paper introducing the concept of Nash equilibrium, a cornerstone for understanding stable outcomes in strategic interactions.John F. Nash, Jr.
• Games, Strategies and Managers ↗A lucid and engaging introduction to game theory, illustrating its power in understanding economic behaviour and strategic decision-making without excessive mathematical formalism.Ken Binmore

Voices to follow

• Robert Aumann ↗His rigorous analysis of repeated games and correlated equilibrium provides deep insights into long-term strategic interactions and cooperation.Professor Emeritus of Mathematics, Hebrew University of Jerusalem; Nobel Laureate in Economic Sciences
• Roger Myerson ↗A pioneer in mechanism design, his work illuminates how institutions can be structured to elicit truthful information and achieve desired outcomes in complex strategic environments.Glen A. Lloyd Distinguished Service Professor of Economics, University of Chicago; Nobel Laureate in Economic Sciences
• Alvin Roth ↗His practical application of game theory to 'matching markets,' from kidney exchanges to school choice, demonstrates its power in solving real-world allocation problems.Craig and Susan McCaw Professor of Economics, Stanford University; Nobel Laureate in Economic Sciences
• Avinash Dixit ↗Co-author of seminal texts like 'Thinking Strategically,' he excels at demystifying complex game theoretic concepts for a broader audience, bridging academic rigor with practical application.John J.F. Sherrerd '52 University Professor of Economics Emeritus, Princeton University
• Ken Binmore ↗His work on evolutionary game theory and the philosophical foundations of game theory offers a compelling perspective on how strategic behaviour emerges and persists in human societies.Emeritus Professor of Economics, University College London

Glossary

• CompetitionCompetition is when players act against each other, each trying to achieve their own goals, often at the expense of others. It's about winning individually. For example, in a race, each runner is in competition with the others, trying to be the first to cross the finish line.
• CooperationCooperation is when players choose to work together to achieve a common goal or a better outcome for everyone involved. It often involves trusting others and sharing benefits. For example, if a group of students decides to share notes and help each other understand a difficult topic, they are cooperating to improve everyone's learning.
• DecisionA decision is a choice made by a player at a specific point in a game. These choices are part of a player's overall strategy. For example, when playing rock-paper-scissors, choosing 'rock' is a decision. When deciding whether to study for a test or play video games, that's a decision.
• Dominant StrategyA dominant strategy is a choice that gives a player the best possible payoff, no matter what the other players choose to do. It's always the best move for that player. For example, if you know that studying for a test will always get you a better grade than not studying, regardless of whether your friends study or not, then studying is your dominant strategy.
• Game TheoryGame Theory is a way of studying how people or groups make choices when their success depends on what others choose. It helps us understand strategic situations where everyone tries to get the best outcome for themselves. For example, when you and your friend both want the last slice of pizza, Game Theory could analyze your choices (offer to share, grab it, wait) and predict what might happen based on what each of you wants.
• Nash EquilibriumA Nash Equilibrium is a stable point in a game where no player can get a better payoff by changing their strategy, assuming all other players keep their strategies the same. It's like a balance where no one has a reason to switch. For example, if you and your friend both decide to meet at the library to study, and neither of you would do better by going somewhere else if the other still goes to the library, that's a Nash Equilibrium.
• Non-Zero-Sum GameA non-zero-sum game is a situation where the total gains and losses of all players don't necessarily add up to zero. Everyone can win, everyone can lose, or some can win more than others. For example, if you and a friend work together on a school project, you might both get good grades (a win-win situation), meaning the total 'score' is positive.
• PayoffThe payoff is the result or reward a player gets at the end of a game, depending on the choices made by all players. It could be points, money, satisfaction, or even a loss. For example, if you win a board game, the payoff is the victory itself. If you share your lunch, the payoff might be your friend sharing theirs next time, or just feeling good about being kind.
• PlayerA player is anyone or any group involved in a strategic situation who makes decisions. They are the participants whose choices affect the outcome of the 'game.' For example, in a game of chess, each person playing is a player. In a negotiation over chores, you and your sibling are the players.
• StrategyA strategy is a complete plan of action that a player will take in every possible situation during a game. It's how you decide to play to achieve your goal. For example, your strategy for a football match might be to always pass the ball to the fastest player when you get it, or to defend aggressively.
• Zero-Sum GameA zero-sum game is a situation where one player's gain is exactly equal to another player's loss. The total 'score' for all players always adds up to zero. For example, in a game of poker, if one person wins $10, another person (or people) must have lost a total of $10. There's no new value created, just transferred.

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Where this connects to other fields, and why it's worth knowing.

• Sexual & Reproductive Health Health

  During pregnancy, the fetus and the mother's body are secretly playing tug-of-war over nutrients. Genes the fetus got from the dad push it to grab as much as possible from the mother; genes from the mom push back to hold some in reserve. It's an evolutionary strategy game, and the battlefield is a single body.

• Civil Disobedience Law

  Talk is cheap, so how do you prove you truly believe a law is unjust? You do something costly: you break it on purpose and walk calmly to jail. The pain you're willing to take is the proof, since a faker wouldn't pay that price. Everyone watching updates their view, because you just made your conviction impossible to bluff.

• The US-China Rivalry Political Science

  The most dangerous moment between two rival nations isn't when the challenger is strongest. It's when it's rising fast and can't promise to stay peaceful once it overtakes you. The current top dog is tempted to strike now, while it still can win. So 'preventive war' isn't crazy; it's a trust problem, because nobody can make a promise about the future stick.

• Adaptation & Geoengineering Environment

  Normally with climate, everyone waits for someone else to pay the cost, so nobody acts. But spraying particles to dim the sun is shockingly cheap, which flips the game upside down. Now a single country could cool the whole planet alone, like one person grabbing the thermostat for a house of eight billion.

• Strategy & Competitive Advantage Business

  Imagine two armies, and one burns the only bridge behind itself. Sounds insane, but now they can't retreat, so the enemy knows they'll fight to the end and backs off. Game theory proves this again and again: throwing away your own choices, so you literally can't chicken out, often beats keeping every option open.

• Tolerance and Pluralism Religion

  Here's a trap: if a tolerant society tolerates people who want to wipe out tolerance, those people win and tolerance dies. Philosopher Karl Popper spotted this paradox. It isn't only a question of being nice; it's a strategy problem, because being endlessly open can be the exact move that gets you destroyed.

• Terrorism and Violent Extremism Global Risks

  A suicide attacker has made retreat impossible, and that's the whole point. By throwing away any escape, they prove their threat is totally real, no bluffing possible. That unbluffable resolve is what makes it terrify people far beyond the actual harm done.

• Populism and Nationalism Political Science

  When a huge group needs to unite fast, they latch onto one obvious marker, a nation, a flag, an ethnicity, that everyone can instantly recognize and rally around. It's an easy meeting point that solves teamwork. But it also locks 'us' against 'them' for good.

• Startup Funding Business

  When a startup raises way more money than it needs, that's a message, not just cash. Burning through a huge pile proves you can afford to, which scares off rivals. It's like a peacock's giant tail: wasteful on purpose, to show off strength.

• Corruption and Governance Political Science

  Corruption sticks around because of a trap: you pay bribes since everyone else pays bribes, and an honest person alone just loses. Math calls this a trap equilibrium. So real reform can't be one honest official; you have to flip everyone's expectations at the same moment.

• Critical Minerals and Supply Chains Global Risks

  Taiwan makes most of the world's advanced computer chips, and that's its 'silicon shield.' Invading would wreck the very factories everyone needs, so attacking hurts the attacker too. It's the old cold-war logic of mutual destruction, rebuilt out of a supply chain instead of nukes.

• Cryptocurrency & Digital Money Economics

  With no bank in charge, why does a cryptocurrency hold together? Because attacking it just doesn't pay off. It's set up so that everyone's best move is to play honestly, a balance mathematicians call a Nash equilibrium, solving the old puzzle of how strangers who don't trust each other still agree.

• Vaccines Health

  If almost everyone around you gets a shot, a disease can't spread, so you're safe even if you skip it. That tempts each person to let others take the tiny risk while they coast for free. But when too many think that way, not enough people get protected, and the disease never quite dies out.

• The Global Debt Crisis Global Risks

  Whether a country can pay its debts is partly just what lenders believe. If they expect it to fail, they charge sky-high interest, which pushes it into failing. The fear literally creates the disaster it was afraid of.

• Landmark Constitutional Cases Law

  A supreme court has no army, yet it can overrule a president. Why does anyone listen? Because everyone expects everyone else to obey, so obeying becomes the safe move. Its power is really just a shared expectation nobody wants to break first.

• Cancer Health

  Your body is a giant deal between trillions of cells: each one agrees not to grab all the food and multiply endlessly, so the whole team can live. Cancer is just one cell that breaks the deal and starts taking everything for itself. It's a cheater walking out of a very old truce.

• World Religions Religion

  How do total strangers trust each other enough to trade and cooperate? One ancient answer: believe in a god who sees everything and punishes cheaters. If someone's always watching, cheating never pays off, so even people with no family ties can work together. It's a clever trust trick baked into belief.

• Autonomous Weapons Technology

  On the stock market, computers trading faster than any human can blink have crashed prices in seconds before anyone could stop them. Now picture that speed with weapons: machines that fire before a human can think could turn a small clash into a full war in milliseconds. It's a flash crash, but with missiles instead of money.

• Disinformation and Elections Political Science

  A liar just blurts out a fake claim in seconds. The fact-checker then has to dig up sources and carefully prove it wrong. Truth always costs more to defend than a lie costs to throw — an unfair matchup baked right into the game.

• Pandemics Science

  Once enough people are vaccinated, you personally could skip the shot and still be safe — everyone else shields you. But if everyone thinks that way, not enough people get vaccinated and the disease breaks through. The math guarantees voluntary uptake falls short.

• Antibiotic Resistance Health

  Use your most powerful antibiotic on everything, and bacteria evolve to beat it, leaving you defenseless. So the smart move is to hold it back like a secret weapon in reserve. In this game against germs, restraint beats firepower.

• Climate Change Science

  Cutting emissions helps everyone, so every country is tempted to slack off and let others do the work. One economist's fix isn't a moral lecture but a "climate club": nations that cooperate slap tariffs on those that don't. Suddenly cheating costs more than helping.

• The Psychology of Love Psychology

  Lasting love is like a game you play over and over, where knowing you'll see each other tomorrow makes being kind and loyal the smart move. Marriage and kids raise the stakes on purpose, so walking out costs a lot more. They're commitment devices that make sticking together the rational choice.

• Sport, the Body & Society Health

  Palacios-Huerta studied professional football penalty kicks as a strategic interaction between kicker and goalkeeper. Because either player can exploit a predictable opponent, varying actions can be useful. The study connects mixed-strategy predictions with observed sporting decisions rather than assuming that every sporting contest fits a simple game model.

  Sources: Palacios-Huerta — Professionals Play Minimax (2003), author repository ↗

• AI Safety & Alignment Technology

  DeepMind’s multi-agent social-dilemma experiments examined cooperation and competition under different reward structures and environments. They make alignment a strategic design question: an agent’s incentives interact with other agents’ behaviour. Results from these simulations do not establish how every deployed AI system, or a future advanced system, will behave.

  Sources: Google DeepMind — Understanding agent cooperation (2017) ↗