We examine the effect of high frequency trading on market quality from theperspective of a limit order trader. By competing with slower limit order traders, highfrequency traders (HFT) impose a welfare externality by crowding out slower non-HFTlimit orders. The order book imbalance immediately...

The institutional brokerage industry faces an ever-increasing pressure to lower trading costs, which has already driven down average commissions and shifted volume toward low-cost execution venues. However, traditional full-service brokers that bundle execution with services remain a force and...