一位德国心理学者，Gerd Gigerenzer说，谜底就是我们做决定的方式，而不是富兰克林或者现代的决策理论学者帮我们设想的那些模式。

The answer to these puzzles, says Gerd Gigerenzer, a German psychologist, lies in the way we make decisions, which is not how Franklin — or modern students of decision theory — think we should.

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基于供应链管理理论的采购管理是现代企业资源决策和提高核心竞争力的重要手段。

For modern enterprises, the purchase management based on the theory of supply chain management is an important approach to making resources decisions and enhancing its core competitive capacity.

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本文介绍了现代证券组合理论中几个主要的数学模型，并分析了组合收益中的风险构成及风险收益决策。

Several mathematical models in modern portfolio has been introduced in this essay and the risk components in portfolio income constitution have been analyzed.

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