organization of the firm on R&D incentives and technical progress, and R&D cooperation and technological spillovers. …' Preface -- Part I: Patents -- Chapter 1. Rent Dissipation in R&D Races -- Abstract -- 1. Introduction -- 2. Model -- 3 …. Spillovers, Stable R&D Cooperations, and Social Welfare -- Abstract -- 1. Introduction -- 2. The models -- 3. Stability of R …