Paper to be presented at the DRUID Academy 2013 on DRUID Academy 2013 at Comwell Rebild Bakker, Rebild/Aalborg Adder: a simplified model for simulating the search for innovations Janne M. Korhonen Aalto University School of Business janne.m.korhonen@aalto.fi Julia Kasmire Delft University of Technology j.kasmire@tudelft.nl Abstract Computer simulations are increasingly used to study the development, adoption, and evolution of technologies. However, existing models suffer from various drawbacks that may not be easily corrected, among them lack of internal structure in technologies, static environments and practical difficulties of introducing search dynamics more representative of empirical findings from historiography of technology. In particular, the implicit assumption that distal search is required for radical breakthroughs from the state of the art is problematic. This paper discusses the theoretical background and rationale for an improved model, the Adder, and sketches out the model's main features. Jelcodes:O33,C63