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[资产定价] 【好帖重赏】对鞅的理解 |
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回帖推荐xuruilong100 发表于4楼 查看完整内容 摘自wiki:
Originally, martingale referred to a class of betting strategies that was popular in 18th-century France.[1][2] The simplest of these strategies was designed for a game in which the gambler wins his stake if a coin comes up heads and loses it if the coin comes up tails. The strategy had the gambler double his bet after every loss so that the first win would recover all previous losses ...
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