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问答题
In the forward or future transaction, the winning party makes money at the loss of the losing party, hence forward or future would not contribute to economic efficiency.
答案：
这种说法并不完全准确。期货和远期交易确实涉及盈亏的转移，即一方的盈利等于另一方的亏损，但这并不意味着它们不促进经济效率。...
