We follow the prosecution histories of the 2.15 million new patent applications filed at the US Patent and Trademark Office between 1996 and 2005 to calculate patent allowance rates. 55.8% of the applications emerged as patents without using continuation procedures to spawn related applications....

We focus in this study on the exogenous event of the enactment of American Inventor’s Protection Act of 1999 (AIPA), which disseminates timely, detailed, and credible public information on R&D activities through pre-grant patent disclosures. Exploiting the staggered timing of patent...

Why do individuals become entrepreneurs? Why do some succeed? We propose two theories in which information frictions play a central role in answering these questions. Empirical analysis of two national longitudinal samples reveal the following patterns: (i) entrepreneurs have higher ability than...

In this paper, we study the effect of invention disclosure through patent publication on the market for ideas. We do so by analyzing the effects of the American Inventor’s Protection Act of 1999 (AIPA) — which required US patent applications to be published 18 months after their filing date...