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arXiv 2005.14126q-fin.TRmath.OC
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关于出价方和要价方特定的最小价格变动单位

On bid and ask side-specific tick sizes

Bastien Baldacci, Philippe Bergault, Joffrey Derchu, Mathieu Rosenbaum

摘要:

最小价格变动单位是给定资产两个连续价格之间的最小增量,是市场微观结构的关键参数。特别是高频做市商的行为与其价值高度相关。我们从交易所的角度出发,研究在订单簿的买卖双方设置不同的最小价格变动单位的相关性。使用的不确定区域模型的基础上的方法,我们表明,当侧特定的最小价格变动单位是适当的选择,它使交易所,以提高质量的流动性供给。

英文摘要:

The tick size, which is the smallest increment between two consecutive prices for a given asset, is a key parameter of market microstructure. In particular, the behavior of high frequency market makers is highly related to its value. We take the point of view of an exchange and investigate the relevance of having different tick sizes on the bid and ask sides of the order book. Using an approach based on the model with uncertainty zones, we show that when side-specific tick sizes are suitably chosen, it enables the exchange to improve the quality of liquidity provision.

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