Game Theory Series

Welcome to the Game Theory Series! This comprehensive collection explores the mathematics of strategic decision-making, where outcomes depend not just on your actions, but on the actions of others.

Why Game Theory Matters

Whether you’re negotiating a salary, launching a product, bidding in an auction, or just playing poker with friends, game theory provides the mathematical framework for thinking strategically. Understanding game theory helps you:

  • Make better strategic decisions in competitive situations
  • Predict how others will respond to your actions
  • Design better incentives and mechanisms
  • Understand cooperation, competition, and conflict
  • Apply mathematics to real-world problems in business, politics, and life

Beginner Level

Building the foundations of strategic thinking

What is Game Theory? A Simple Introduction

The mathematics of strategic decision-making

  • Understanding strategic interactions
  • Real-world applications
  • The foundations of rational choice

Game Theory 101: What is a 'game' in mathematics?

Players, strategies, and payoffs

  • Formal definition of games
  • Components of strategic interactions
  • Normal vs extensive form

Payoff Matrices: How to visualize any two-player game

The Swiss Army knife of game theory

  • Reading payoff matrices
  • Representing strategic situations
  • Finding best responses

Dominant Strategies: The Easy Way to Win Every Time

When one choice is always best

  • Dominant strategy definition
  • Simplifying complex decisions
  • When to use dominant strategies

Nash Equilibrium Explained in 5 Minutes

The most important concept in game theory

  • Mutual best responses
  • Stable strategy profiles
  • Finding equilibria

The Prisoner's Dilemma: Why Rational People Make Bad Choices

When individual rationality leads to collective disaster

  • The classic dilemma
  • Cooperation vs defection
  • Real-world applications

Why Rational Players Sometimes Lose: The Paradox of Game Theory

When logic leads to suboptimal outcomes

  • Pareto efficiency vs Nash equilibrium
  • Coordination failures
  • The limits of rationality

Zero-Sum Games: When Your Win is My Loss

Pure conflict and competitive strategy

  • Zero-sum vs positive-sum games
  • Minimax strategies
  • Applications in sports and business

Coordination Games: Why We All Drive on the Same Side

When cooperation requires alignment

  • Multiple equilibria
  • Coordination problems
  • Social conventions

Intermediate Level

Advanced concepts and applications

Mixed Strategies: Why You Should Be Unpredictable

When randomness is your best strategy

  • Probability in strategic choice
  • Finding mixed strategy equilibria
  • Applications in sports and security

The Tragedy of the Commons: When Self-Interest Destroys Everything

Why shared resources get overexploited

  • Multi-player prisoner's dilemmas
  • Externalities and public goods
  • Solutions to commons problems

Repeated Games: How Cooperation Emerges from Self-Interest

When the shadow of the future changes everything

  • Tit-for-tat strategies
  • The Folk Theorem
  • Cooperation without altruism

Backward Induction: Solving Games by Working Backwards

The power of reasoning from the end

  • Sequential games
  • Subgame perfect equilibrium
  • Credible threats and commitments

The Ultimatum Game: Are Humans Really Rational?

When fairness trumps cold logic

  • Fairness preferences
  • Behavioral game theory
  • The limits of rational choice theory

Auction Theory: The Mathematics of Bidding Wars

How game theory allocates billions

  • Auction formats and strategies
  • The winner's curse
  • Mechanism design

Advanced Topics

Specialized applications and deep theory

Mechanism Design: Engineering Games with Desired Outcomes

Reverse game theory for better systems

  • VCG mechanism and incentive compatibility
  • Kidney exchanges and school choice
  • Spectrum auctions

Evolutionary Game Theory: How Strategies Survive and Spread

Evolution without conscious thought

  • ESS and replicator dynamics
  • Hawk-Dove game
  • Evolution of cooperation

Signaling Games: Communication When Words Are Cheap

Credible communication through costly signals

  • Spence job market model
  • Separating vs pooling equilibria
  • Biological handicap principle

Cooperative Game Theory: How to Split the Pie Fairly

Mathematical fairness in coalition formation

  • Shapley value
  • The Core and stability
  • Nash bargaining solution

Stackelberg Competition: The Advantage of Moving First

When timing creates competitive advantage

  • Sequential vs simultaneous competition
  • First-mover advantage and disadvantage
  • Entry deterrence strategies

Voting Theory: Why Democracy is Mathematically Impossible

The fundamental limits of collective choice

  • Arrow's Impossibility Theorem
  • Condorcet paradox
  • Strategic voting

Getting Started

Each article includes:

  • Clear explanations of mathematical concepts without requiring advanced prerequisites
  • Visual diagrams using game trees and payoff matrices
  • Real-world examples from business, politics, sports, and everyday life
  • Practice problems with solutions to test your understanding
  • Mermaid diagrams for visual learners

For Complete Beginners:

  1. Start with What is Game Theory? - Foundation
  2. Learn Game Theory 101 - Core concepts
  3. Master Payoff Matrices - Essential tool
  4. Understand Dominant Strategies - Simple decisions
  5. Explore Nash Equilibrium - Key concept

Classic Games & Paradoxes:

  1. The Prisoner’s Dilemma - Most famous game
  2. Zero-Sum Games - Pure competition
  3. Coordination Games - Alignment challenges
  4. Why Rational Players Sometimes Lose - Paradoxes

Advanced Strategy:

  1. Mixed Strategies - Randomization
  2. Repeated Games - Cooperation
  3. Backward Induction - Sequential games
  4. The Ultimatum Game - Behavioral insights
  5. Auction Theory - Mechanism design

For Business & Entrepreneurs:

  1. The Prisoner’s Dilemma - Competition vs cooperation
  2. The Tragedy of the Commons - Resource management
  3. Backward Induction - Strategic planning
  4. Auction Theory - Bidding strategies

For Understanding Society:

  1. The Tragedy of the Commons - Environmental issues
  2. Coordination Games - Social conventions
  3. Repeated Games - Trust and reputation
  4. The Ultimatum Game - Fairness and culture

Advanced Theory & Applications:

  1. Mechanism Design - Engineering better systems
  2. Evolutionary Game Theory - How strategies evolve
  3. Signaling Games - Communication under asymmetric information
  4. Cooperative Game Theory - Fair division and coalitions
  5. Stackelberg Competition - Sequential competition
  6. Voting Theory - Limits of democracy

Key Concepts Covered

Strategic Thinking:

  • Players, strategies, and payoffs
  • Best response analysis
  • Dominant strategies
  • Nash equilibrium

Classic Games:

  • Prisoner’s Dilemma
  • Coordination games
  • Zero-sum games
  • Ultimatum game

Advanced Topics:

  • Mixed strategies
  • Repeated games
  • Backward induction
  • Subgame perfect equilibrium
  • Mechanism design
  • Auction theory
  • Evolutionary stability
  • Signaling and screening
  • Cooperative solutions
  • Sequential competition
  • Voting theory

Applications:

  • Business strategy and competition
  • Negotiations and bargaining
  • Auctions and bidding
  • Public policy and economics
  • Social norms and cooperation
  • Sports and poker

Mathematical Prerequisites

Most articles require only:

  • Basic algebra (high school level)
  • Simple probability (understanding percentages)
  • Logical reasoning (no formal training needed)

Advanced topics (mixed strategies, auction theory) use:

  • Expected value calculations (explained from scratch)
  • Basic calculus (derivatives, but explained intuitively)

No advanced math background required! All concepts are explained from first principles.


Tools & Visualizations

This series makes heavy use of:

  • Payoff matrices - Visual representation of games
  • Game trees - Sequential decision structures
  • Mermaid diagrams - Interactive visual learning
  • Worked examples - Step-by-step solutions
  • Practice problems - Test your understanding

Why I Write About Game Theory

Game theory transformed how I think about competition, cooperation, and strategy in business and life. From launching products to negotiating deals, from understanding market dynamics to designing incentive systems — game theory provides a rigorous framework for strategic thinking.

These articles combine:

  • Mathematical rigor from academic game theory
  • Intuitive explanations accessible to non-mathematicians
  • Real-world applications from business, economics, and everyday life
  • Practical insights you can apply immediately
  • Visual learning through diagrams and examples

Beyond This Series

After mastering these concepts, you can explore:

  • Bayesian games - Games with incomplete information and beliefs
  • Algorithmic game theory - Computation, complexity, and online algorithms
  • Behavioral game theory - When humans deviate from rationality
  • Stochastic games - Dynamic games with random transitions
  • Network games - Strategic interactions on graphs and networks
  • Mean field games - Large population strategic interactions

Feedback & Discussion

Have questions about game theory? Want to suggest a topic?

Email: [email protected] GitHub: @colossus21 LinkedIn: Rafiul Alam


This series complements my other content on Psychology & Behavioral Science and Business Mathematics, exploring the mathematical foundations of strategic decision-making.