This paper examines the nature of Hodgson and Knudsen’s version of Generalized Darwinism, asking to what extent it has explanatory force. The paper develops two criteria for potential explanatory transfer of theories between disciplines, and argues that Generalized Darwinism does not meet these. The paper proposes that Hodgson and Knudsen’s version of Generalized Darwinism is best understood as a research program aimed at modest unificationism sensu Kitcher, that provides a heuristic perspective to guide research, but does not produce actual evolutionary (...) explanations. (shrink)