Heteroskedasticity in returns may be explainable by trading volume. We use different volume variables, including surprise volume - i.e. unexpected above-average trading activity - which is derived from uncorrelated volume innovations. Assuming weakly exogenous volume, we extend the Lamoureux and...

In this paper, we investigate the systematic departures of traded prices of Japanese equity warrants and convertible bonds from their theoretical Black-Scholes values. We briefly consider transactions costs and the dilution adjustment as potential explanations of the discrepancy between price...

Accurate modeling of extreme price changes is vital to financial risk management. We examine the small sample properties of adaptive tail index estimators under the class of student-t marginal distribution functions including GARCH and propose a model-based bias-corrected estimation approach....

This paper provides an analysis of the relation between equity and fixed income returns over time. As measured by realized correlation, this relation has changed substantially over the last decade, from positive to negative through the market collapse and is currently around zero. We find...

In this paper we analyze a model of voluntary disclosure by firms in financial markets. We focus on externalities that arise when firm values are correlated and the disclosures made by one firm affect the valuation of other firms. In our model, firms can choose the precision of their disclosure,...

We examine whether a large shareholder can alleviate conflicts of interest between managers and shareholders through the credible threat of exit on the basis of private information. In our model, the threat of exit often reduces agency costs, but additional private information need not enhance...

Post-mortems of the financial crisis typically mention "black swans" as the rare events that were the Achilles heel of financial models, manifesting themselves as "25 standard deviation events occurring several days in a row". Here, we briefly discuss the implications of "black swan" events in...

We examine whether a large shareholder can alleviate conflicts of interest between managers and shareholders through the credible threat of exit on the basis of private information. In our model the threat of exit often reduces agency costs, but additional private information need not enhance...