In this file photo taken on August 05, 2022, traders work on the floor of the New York Stock Exchange (NYSE). - ANGELA WEISS/ AFP皇冠hg0088开户（www.hg108.vip）是皇冠体育官方正网线上开放会员开户、代理开户，额度自动充值等业务的直营平台。
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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