What is zero sum game?

 A zero-sum game is a situation in which one person's gain is equivalent to another's loss, so the net change in wealth or benefit is zero. Zero-sum games are often used in economics to describe situations where there is a fixed amount of resources or opportunities, and where one person's success must come at the expense of another.

Some examples of zero-sum games include:

• Gambling games, such as poker and blackjack
• Competitive sports, such as tennis and soccer
• Economic markets, where buyers and sellers try to negotiate the best price for goods and services
• Political elections, where candidates compete for votes

It is important to note that not all zero-sum games are inherently bad. In fact, some zero-sum games can be beneficial to society as a whole. For example, competitive sports can promote physical fitness and teamwork, and economic markets can help to allocate resources efficiently.

However, it is also important to be aware of the potential negative consequences of zero-sum games. For example, gambling can lead to addiction and financial ruin, and political elections can become divisive and destructive.

Here is a simple example of a zero-sum game:

Alice and Bob are playing a coin toss game. Alice bets $1 on heads and Bob bets $1 on tails. If Alice wins, she gets Bob's $1. If Bob wins, he gets Alice's $1. The net change in wealth is zero, because one person's gain is equivalent to the other person's loss.

Zero-sum games are an important concept in game theory, and they are used to study a wide variety of situations, from economic markets to social interactions.