This paper examines whether and when the information environment of peer firms in an industry affects the cost of capital for other firms in the industry. We predict and find that the peer information environment is negatively associated with a firm's cost of capital when there is less publicly available firm-specific information and this negative association shrinks as the amount of firm-specific information increases. This paper provides evidence that information about peer-firms has externalities on the cost of capital for related firms and that these externalities are time-varying.

We propose a new measure of readability, the Bog Index, which captures the plain English attributes of disclosure (e.g., active voice, fewer hidden verbs, etc.). We validate this measure using a series of controlled experiments and an archival-based regulatory intervention to prospectus filing readability. We also demonstrate the importance of understanding the underlying drivers of quantity-based measures of readability. In particular, we caution researchers that a vast amount of the variation in Form 10-K file size over time is driven by the inclusion of content unrelated to the underlying text in the 10-K (e.g., HTML, XML, PDFs).