Zero-Sum Vs. Non-Zero-Sum Thinking
Zero-Sum Bias
Zero-sum thinking assumes every gain comes at someone else's expense. Non-zero-sum thinking recognizes that outcomes can be win-win (or lose-lose) — the pie isn't always fixed.
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Origin
Rooted in game theory, formalized by John von Neumann and Oskar Morgenstern in their 1944 Theory of Games and Economic Behavior. Zero-sum games (poker, chess) have a fixed total: one player's gain is another's loss. But most real-world interactions — trade, relationships, collaboration — are non-zero-sum, where cooperation can expand the total value. Robert Wright's 1999 book Nonzero argued that human history is largely a story of expanding non-zero-sum dynamics.
Updated February 22, 2026