Blankenberg, Ann-KathrinAnn-KathrinBlankenbergBuenstorf, GuidoGuidoBuenstorf2018-11-072018-11-072016https://resolver.sub.uni-goettingen.de/purl?gro-2/40789We trace the co-evolution of regional firm population sizes, private-sector patenting and public research in German laser research and manufacturing for over 40 years from the emergence of the industry to the mid-2000s. Qualitative as well as quantitative evidence suggests a co-evolutionary process of mutual interdependence rather than a unidirectional effect of public research on private-sector activities. (C) 2016 Elsevier B.V. All rights reserved.journal_article10.1016/j.respol.2016.01.008000371943800009