All option trades must occur on exchanges, which typically offer auctions that improve prices over existing quotes. Wholesalers, that purchase orders from brokers, initiating auctions must be willing to trade at the existing best quote or better. For S&P500 stocks, auctions are 23% of options...

We identify long-lived pricing errors through a model in which inattentive investors arrive stochastically to trade. The model’s parameters are structurally estimated using daily NYSE market-maker inventories, retail order flows, and prices. The estimated model fits empirical variances,...

We study the order exposure choice of various trader types in high-speed markets. Using message-level data to identify algorithmic (ATs) and non-algorithmic traders (NATs) we examine how technological differences affect order exposure. While both ATs and NATs hide orders, superior technology...

Using data on indicative quotes dealers provide to clients, we establish empirical relationships regarding quote competition in the corporate bond market. Market-wide higher quoting activity is associated with greater trading volume and lower trading costs. At the dealer level, quoting dealers...

Short-sale bans have been utilized globally as a regulatory tool during periods of financial crisis. This paper reviews the observed intended and unintended effects of short-sale bans. Research has documented pervasive effects spanning many financial markets that include options, convertible...