We examine how useful the popular Loughran and McDonald (2011, LM) tonal word lists are for extracting information in IPO prospectuses about first-day returns. We find that there is much more information in word use than captured by the LM tonal lists. We show that the connection between LM...

We model the decision to exhaust depth by high speed traders, which either flips the best bid or ask quote to the opposite side or widens the spread. Such events are common and often revert to the previous best quote levels. Consistent with the model, such quote flipping results in large trade...

This paper reviews the more recent literature addressing different facets of speculation in commodity markets, including the role of speculators and the impact that financialization in recent years. While speculation and financialization can theoretically destabilize commodity markets, the...

Margins are the major safeguards against default risk on a derivatives exchange. When the clearing house sets margin requirements, it does so by only focusing on individual clearing firm positions (e.g., the SPAN system). We depart from this traditional approach and present an alternative method...

We present CoMargin, a new methodology to estimate collateral requirements for central counterparties (CCPs) in derivatives markets. CoMargin depends on both the tail risk of a given market participant and its interdependence with other participants. Our approach internalizes market...