Definition: What is a zero sum game?

A game in which the total of all the gains and losses is zero.

Other word: Result of a zero-sum situation is...if one gains, it means others have to lose.

**ROMAN5:**

Definition: What is a zero sum game?

A game in which the total of all the gains and losses is zero.

Other word: Result of a zero-sum situation is...if one gains, it means others have to lose.

Hi guys, i voted "no". Precisely zero sum situation is when "if the total gains of the participants are added up, and the total losses are subtracted, they will sum to zero." (wikipedia docet :) )

I think that without considering transaction costs forex is an example of zero-sum game. Anyway if you consider that brokers win always :) situation become different, i would like to do a stupid example based on the coin flip :)

i bet 10 dollars and you bet 10 dollars on a coin flip, total money in the game: 20$ but the "coin-flipper" ask you 1$ and he asked me 2$ in order to play (...mr. coin-flipper hates me :))

now i loose 10$ and you win 7$. Game sum is -3

But if we consider the brokers as "special players that win without betting " then the forex is a zero-sum game :)

Don't you think so?

**nemux:**

Hi guys, i voted "no". Precisely zero sum situation is when "if the total gains of the participants are added up, and the total losses are subtracted, they will sum to zero." (wikipedia docet :) )

I think that without considering transaction costs forex is an example of zero-sum game. Anyway if you consider that brokers win always :) situation become different, i would like to do a stupid example based on the coin flip :)

i bet 10 dollars and you bet 10 dollars on a coin flip, total money in the game: 20$ but the "coin-flipper" ask you 1$ and he asked me 2$ in order to play (...mr. coin-flipper hates me :))

now i loose 10$ and you win 7$. Game sum is -3

But if we consider the brokers as "special players that win without betting " then the forex is a zero-sum game :)

Don't you think so?

Even your example of a coin toss with a fee for the coin flipper is zero sum. Whatever the others gain is from what you lose. Roman defined his poll as:

"Definition: What is a zero sum game?

A game in which the total of all the gains and losses is zero.

Other word: Result of a zero-sum situation is...if one gains, it means others have to lose."

So in your example the total of all the gains $7+$3 is equals to $10 and the total loses is also $10. So its zero sum.

**tonny:**

Even your example of a coin toss with a fee for the coin flipper is zero sum. Whatever the others gain is from what you lose. Roman defined his poll as:

"Definition: What is a zero sum game?

A game in which the total of all the gains and losses is zero.

Other word: Result of a zero-sum situation is...if one gains, it means others have to lose."

So in your example the total of all the gains $7+$3 is equals to $10 and the total loses is also $10. So its zero sum.

ok... and who is the participant which earned $3? Broker? That can be true and i agree with that and in this case it's a zero-sum game.

But, as i said before, that's right if you consider broker as a participant who always wins. Anyway ROMAN gave an "easy" definition of zero-sum game because the correct definition is "the total gains of the ** participants** are added up, and the total losses are subtracted, they will sum to zero"

If we agree the broker is a participant then it means that we are going to play in a game where a player always wins without risk :)

For this reason we can say

"Theoretically the trading in the forex market is a zero-sum game but in presence of any kind of taxes applied to the game it becomes negative or it's a zero-sum but there are one or more participants who earn always without risk"

That's logically correct :)

**newdigital:**

If we are talking about "broker is not my friend" so - yes, that is true.

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