nerve-sparing
发表于 2025-3-30 08:43:48
asket. A core issue of portfolio selection is the trade-off between profit and risk. To tackle this issue, Harry M. Markowitz (1952) developed a mean-variance analysis, which was the first quantitative treatment of portfolio selection under uncertainty. This approach was further developed by James T
exhilaration
发表于 2025-3-30 15:04:12
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弄脏
发表于 2025-3-30 17:39:57
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Glutinous
发表于 2025-3-30 22:31:33
Catherine Berryin rule, which gives the derivative of a composite of two di?erentiable functions. The chain rule, when written in an inde?nite integral form, yields the method of substitution. In advanced calculus, the Riemann–Stieltjes integral is de?ned through the same procedure of “partition-evaluation-summati
有罪
发表于 2025-3-31 01:43:58
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