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by Paul-Craft 483 days ago
Trading is only zero-sum at very small time scales. Over longer times scales, the stock market is not a closed system. Traders who run out of money will either exit the market entirely, or find more money from somewhere else. That money comes from either economic profits, or the economy's money-creation process. In the US economy, that process is fractional reserve banking[0].

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[0]: https://en.wikipedia.org/wiki/Fractional-reserve_banking#Mon...