Howard E. Aldrich, Geoffrey M. Hodgson, David L. Hull, Thorbjoern Knudsen, Joel Mokyr, and Viktor J. Vanberg have jointly published an article “In defence of Generalized Darwinism” in the Journal of Evolutionary Economics. The article is more nuanced the previous efforts by Hodgson and Knudson and is very a good read because it highlights the key issues on developing further evolutionary theories in the social sciences.