We review the accounting literature on innovation, focusing on the economic attributes of innovation that collectively differentiate innovation from other assets: novelty, nonrivalry, and partial excludability. These attributes help innovation drive economic growth but create unique information-based challenges that accounting information and researchers are well suited to address. We discuss the definition and measurement of innovation and highlight common mistakes researchers make when measuring innovation and when using sources of plausibly exogenous variation. We then review the accounting literatures on the disclosure, management, financial reporting, taxation, and contracting and financing of innovation. For each of these literatures we identify challenges and opportunities for future research.

The patent system grants inventors temporary monopoly rights in exchange for a public disclosure detailing their innovation. These disclosures are meant to allow others to recreate and build on the patented innovation. We examine how the quality of these disclosures affects follow-on innovation. We use the plausibly exogenous assignment to patent applications of examiners who differ in their enforcement of disclosure requirements as a source of variation in disclosure quality. We find that some examiners are significantly more lenient with respect to patent disclosure quality requirements, and that patents granted by these examiners include significantly lower-quality disclosures and generate significantly less follow-on innovation. Overall, our evidence suggests that high-quality patent disclosures create knowledge spillovers that spur follow-on innovation.