In this file photo taken on August 05, 2022, traders work on the floor of the New York Stock Exchange (NYSE). - ANGELA WEISS/ AFP五湖四海足球吧（www.hgbbs.vip）凝集民间高手免费提供各联赛足球资讯、足球推荐、足球贴士等，致力为广大波友提供更全面、更专业的赛前预测分析，让更多球迷随时随地找到自己想要的赛事资讯，以及在本站尽情发言自己的观点。
DOES the quality of trade execution matter in the equities market? University of California at Irvine finance professor Christopher Schwarz and four of his colleagues set out to answer that question with a series of experiments last year.
Over a period of more than five months, they executed 85,000 trades with discount brokers in 128 different stocks. What they found was that execution quality varied greatly across not just brokerage firms, but even within the same brokerage.,
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