Game theory is a branch of mathematics that deals with decision-making. It has become increasingly popular in recent years, and for good reason. The concepts of game theory can be applied to real-life situations, helping people make better decisions in a variety of contexts.

What is Game Theory?

At its core, game theory is the study of how individuals and groups make decisions in competitive situations. These can be any situation where there are two or more people or groups with competing interests. Game theory provides a framework for analyzing these situations and predicting how individuals will behave.

Applications of Game Theory

Game theory has found numerous applications in fields such as economics, political science, psychology, and biology. In economics, game theory is used to model market behavior and predict outcomes based on the actions of individual buyers and sellers. In political science, it can be used to analyze voting behavior and predict election outcomes.

One interesting application of game theory is in the field of evolutionary biology. Evolutionary game theory models the behavior of different organisms as they compete for limited resources. By studying these models, researchers can gain insights into how different traits evolve over time.

But perhaps the most interesting application of game theory is in everyday life. Many real-life situations can be modeled using game theory concepts, from negotiating a raise at work to choosing which route to take when driving home.

Real-Life Examples

Consider this hypothetical scenario: Two friends are deciding where to go for dinner. One friend wants Italian food while the other prefers Chinese cuisine. They could simply flip a coin to decide, but that doesn’t take into account each person’s preferences.

Using game theory concepts, they could instead analyze their options more carefully. Each friend could assign a value to each restaurant based on how much they like it (on a scale from 1-10). They would then add up their scores for each restaurant and choose the one with the highest total.

This simple example shows how game theory can be used to make better decisions in everyday life. By analyzing the situation and considering each person’s preferences, the friends were able to come up with a solution that worked for both of them.

Another real-life example where game theory can be applied is in negotiating a salary. An employee may want to ask for a raise, but they don’t want to come across as too aggressive or risk losing their job. By using game theory concepts, they can analyze the situation and come up with a strategy that maximizes their chances of getting a raise while minimizing their risk.

The Nash Equilibrium

One of the most important concepts in game theory is the Nash equilibrium. This occurs when each player in a game chooses their best strategy given what they believe the other players will do. In other words, no player can improve their outcome by changing their strategy if all other players keep theirs unchanged.

The Nash equilibrium is important because it allows us to predict how individuals will behave in competitive situations. It also provides a framework for analyzing situations where there are multiple equilibria, which can help us understand why certain outcomes are more likely than others.


Game theory is an incredibly powerful tool for analyzing decision-making in competitive situations. From negotiating a salary to choosing where to go for dinner, game theory concepts can help us make better decisions by taking into account each person’s preferences and predicting how individuals will behave. By understanding these concepts, we can improve our decision-making skills and achieve better outcomes in our personal and professional lives.