This invaluable book provides a comprehensive overview of twenty years of research on the economics of innovation and patent policies. Edited by Bruno van Pottelsberghe de la Potterie, the papers in this volume witness twenty years of advanced empirical research — triggered by intensive collaboration and inspired by his own professional experience at the OECD, METI and the European Patent Office. The Editor's publications in these fields have greatly contributed to better understand how innovation can be stimulated, how it can be measured, through which channels it contributes to growth, with a particular emphasis on the role of patent systems. In the introductory chapter, the Editor provides an overview of each subfield of investigation, by explaining the genesis of the research projects and adding some personal history. The book first displays major empirical findings on the effectiveness of science and technology policies in stimulating R&D, on how these policies affect the contribution of R&D to economic growth, and how to measure international R&D spillovers and what are their most effective channels. The policies that aim at stimulating innovation include R&D subsidies, public R&D, and R&D tax credits. The chapters that follow present foundational work on patent count methodologies aiming at improving innovation metrics, as well as creative contributions on patent valuation models. The book then presents pioneering contributions on the design of patent systems, including a thorough work on the role of fees, far-reaching analyses on quality, and critical contributions on the governance of patent systems in general and the European patent system in particular.

The U.S. patent system is in an accelerating race with human ingenuity and investments in innovation. In many respects the system has responded with admirable flexibility, but the strain of continual technological change and the greater importance ascribed to patents in a knowledge economy are exposing weaknesses including questionable patent quality, rising transaction costs, impediments to the dissemination of information through patents, and international inconsistencies. A panel including a mix of legal expertise, economists, technologists, and university and corporate officials recommends significant changes in the way the patent system operates. A Patent System for the 21st Century urges creation of a mechanism for post-grant challenges to newly issued patents, reinvigoration of the non-obviousness standard to quality for a patent, strengthening of the U.S. Patent and Trademark Office, simplified and less costly litigation, harmonization of the U.S., European, and Japanese examination process, and protection of some research from patent infringement liability.

A study of how patents and citation data can serve empirical research on innovation and technological change.

We study how external versus internal innovations promote economic growth through a tractable endogenous growth framework with multiple innovation sizes, multi-product firms, and entry/exit. Firms invest in external R&D to acquire new product lines and in internal R&D to improve their existing product lines. A baseline model derives the theoretical implications of weaker scaling for external R&D versus internal R&D, and the resulting predictions align with observed empirical regularities for innovative firms. Quantifying a generalized model for the recent U.S. economy using matched Census Bureau and patent data, we observe a modest departure for external R&D from perfect scaling frameworks.

The series of papers in this publication were commissioned from renowned international economists from all regions. They review the existing empirical literature on six selected themes relating to the economics of intellectual property, identify the key research questions, point out research gaps and explore possible avenues for future research.