We study the effect of disclosure on uncertainty by examining how management earnings forecasts affect stock market volatility. Using implied volatilities from exchange-traded options prices, we find that management earnings forecasts, on average, increase short-term volatility. This effect is...

This paper examines ldquo;bundledrdquo; forecasts, or management earnings forecasts issued concurrently with earnings announcements, which have evolved to become the most common type of management forecast. We describe the econometric problems associated with measuring bundled forecast news and,...

We examine changes in the disclosure behavior of firms involved in 827 disclosure-related class-action securities litigation cases filed between 1996 and 2005. We find no evidence that the firms in our sample respond to the litigation event by increasing or improving their disclosures to...

We examine the relation between disclosure tone and shareholder litigation to determine whether managers’ use of optimistic language increases litigation risk. Using both general-purpose and context-specific text dictionaries to quantify tone, we find that plaintiffs target more optimistic...

We describe the process the SEC uses to make filings “publicly available.” For a sample of Form 4 (insider trade) filings, we show that, during the period we examine, the majority of filings are available to paying subscribers of the SEC's PDS feed before they are posted to the SEC website,...