Why Trading Speed Matters: A Tale of Queue Rationing under Price Controls
研究发现价格管制下的队列配给是高频交易的一个驱动因素，统一最小报价单位限制价格竞争，为流动性提供创造租金，时间优先规则将租金分配给速度更快的高频交易者。
We show that queue rationing under price controls is one driver of high-frequency trading. Uniform tick sizes constrain price competition and create rents for liquidity provision, particularly for securities with lower prices. The time priority rule allocates rents to high-frequency traders (HFTs) because of their speed advantage. An increase in relative tick size, defined as uniform tick sizes divided by security prices, increases the fraction of liquidity provided by HFTs but harms liquidity. We find that the message-to-trade ratio is a poor cross-sectional proxy for HFTs’ liquidity provision: stocks with more liquidity provided by HFTs have lower message-to-trade ratios. Received September 15, 2015; editorial decision October 7, 2017 by Editor Robin Greenwood.