We study the role of high-frequency trading in a dynamic limit order market. Being fast is valuable because it enables traders to revise outstanding limit orders upon news arrivals when interacting with slow market participants. On the one hand, the existence of fast traders can help to reduce...

We study the role of informed trading in a fragmented financial market under the absence of inter-market price priority. Due to frictions in traders' market access, liquidity providers on alternative trading platforms may be exposed to an increased adverse selection risk. As a consequence, the...