as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
write a one-sentence explanation for the following phrase: "zero-sum game".
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a zero-sum game is a situation in which one person’s gain is exactly equal to another person’s loss.
assistant