She has published numerous articles on the economics and econometrics of technical change and innovation and is the editor of the Handbook of the Economics of Innovation in the Elsevier series. [...] This allows the authors of this paper to re-examine In an earlier study (Hall and Helmers 2013), two of the data and provide a more definitive answer the authors of this paper studied the characteristics to the question of whether the commons had of the patents pledged to the EcoPC. [...] First, it offers insight regarding the manner in which patent pledges can support the diffusion In the current study, the authors revisit the effect and implementation of (green) technologies of the EcoPC on technology diffusion and assess around the world. [...] Methodology In 2013, the administration of the EcoPC was Using a series of semi-structured interviews,15 transferred from the WBCSD to the ELI, a the authors sought to gain an understanding Washington, DC-based trade and advocacy of the motivations that originally led firms to organization. [...] Probably due to the lack of a financial goals in joining the EcoPC were achieved, and commitment, the corporate approval required the relative strengths and weaknesses of the for joining the EcoPC was, in some cases, EcoPC structure.