摘要翻译:
多年来,经济学家和金融分析师的量化愿望一直基于这样一种信念,即应该有可能建立经济系统--尤其是金融市场--的模型,这些模型与物理学中的模型一样具有预测性。虽然这一观点导致了经济学的许多重要突破,但“物理嫉妒”在某些情况下也造成了一种错误的数学精度感。我们推测了物理嫉妒的起源,然后描述了基于新的不确定性分类法的经济行为的另一个视角。我们用两个具体的例子来说明这种分类的相关性:经典谐振子和一些新的转折,使物理学看起来更像经济学,以及定量股票市场中性策略。最后,我们对尾部事件提供了一个新的解释,提出了一个“不确定性清单”来实现我们的分类法,并考虑了定量在当前金融危机中所扮演的角色。
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英文标题:
《WARNING: Physics Envy May Be Hazardous To Your Wealth!》
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作者:
Andrew W. Lo, Mark T. Mueller
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最新提交年份:
2010
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Risk Management 风险管理
分类描述:Measurement and management of financial risks in trading, banking, insurance, corporate and other applications
衡量和管理贸易、银行、保险、企业和其他应用中的金融风险
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一级分类:Physics 物理学
二级分类:Physics and Society 物理学与社会
分类描述:Structure, dynamics and collective behavior of societies and groups (human or otherwise). Quantitative analysis of social networks and other complex networks. Physics and engineering of infrastructure and systems of broad societal impact (e.g., energy grids, transportation networks).
社会和团体(人类或其他)的结构、动态和集体行为。社会网络和其他复杂网络的定量分析。具有广泛社会影响的基础设施和系统(如能源网、运输网络)的物理和工程。
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英文摘要:
The quantitative aspirations of economists and financial analysts have for many years been based on the belief that it should be possible to build models of economic systems - and financial markets in particular - that are as predictive as those in physics. While this perspective has led to a number of important breakthroughs in economics, "physics envy" has also created a false sense of mathematical precision in some cases. We speculate on the origins of physics envy, and then describe an alternate perspective of economic behavior based on a new taxonomy of uncertainty. We illustrate the relevance of this taxonomy with two concrete examples: the classical harmonic oscillator with some new twists that make physics look more like economics, and a quantitative equity market-neutral strategy. We conclude by offering a new interpretation of tail events, proposing an "uncertainty checklist" with which our taxonomy can be implemented, and considering the role that quants played in the current financial crisis.
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PDF链接:
https://arxiv.org/pdf/1003.2688