英文标题:
《Impact is not just volatility》
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作者:
Fr\\\'ed\\\'eric Bucci and Iacopo Mastromatteo and Michael Benzaquen and
Jean-Philippe Bouchaud
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最新提交年份:
2019
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英文摘要:
The notion of market impact is subtle and sometimes misinterpreted. Here we argue that impact should not be misconstrued as volatility. In particular, the so-called ``square-root impact law\'\', which states that impact grows as the square-root of traded volume, has nothing to do with price diffusion, i.e. that typical price changes grow as the square-root of time. We rationalise empirical findings on impact and volatility by introducing a simple scaling argument and confronting it to data.
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中文摘要:
市场影响的概念很微妙,有时会被误解。在此,我们认为,不应将影响误解为波动性。特别是,所谓的“平方根影响定律”(square root impact law)指出,影响随着交易量的平方根而增长,与价格扩散无关,即典型的价格变化随着时间的平方根而增长。我们通过引入一个简单的标度论证,并将其与数据进行对比,从而使关于影响和波动性的实证结果合理化。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Trading and Market Microstructure 交易与市场微观结构
分类描述:Market microstructure, liquidity, exchange and auction design, automated trading, agent-based modeling and market-making
市场微观结构,流动性,交易和拍卖设计,自动化交易,基于代理的建模和做市
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