Zero-Sum Game: Definition and Real-World Examples
Zero-sum: one's gain equals another's loss (gambling, sports, options). Contrast with positive-sum (trade, tech) where total value increases. Many perceived zero-sum situations are actually positive-sum.
A zero-sum game is a situation where one participant's gain exactly equals another's loss — the net total change is always zero. Examples of zero-sum situations: - Gambling: every dollar won by one player is lost by another - Sports competitions: one team's win is the other's loss - Options trading: the buyer's profit is the seller's loss (and vice versa) - Territorial disputes: land gained by one nation is lost by another Contrast with positive-sum (win-win) situations: - Trade: both parties value what they receive more than what they give - Partnerships: combined effort produces more than individual work - Technology: innovations create new value without taking from others Many situations commonly perceived as zero-sum are actually positive-sum (like international trade) or negative-sum (like war, where total destruction exceeds any gains).