Duplicate title to Ayres, R. & Ezekoye, I. (1991). Competition and Complementarity in Diffusion: The Case of Octane. In: Diffusion of Technologies and Social Behavior. Eds. Nakicenovic, N. ORCID: https://orcid.org/0000-0001-7176-4604 & ORCID: https://orcid.org/0000-0002-7814-4990Grubler, A., pp. 433-450 Berlin/Heidelberg, Germany: Springer. ISBN 978-3-662-02702-8 10.1007/978-3-662-02700-4_17.