LAUSR

The prize-winning papers demonstrate high-quality work at the cutting edge of industrial ecology theory—addressing key issues of allocation in life cycle assessment and input-output analysis—and the significance of the practical application of the concepts in the field—revealing the potential for rebound in the circular economy. industrial ecology (IE). The prizes are awarded to the best two papers published in the Journal of Industrial Ecology (JIE) every year. Winners receive $750 and a free membership in the International Society for Industrial Ecology. Funding for the prizes was generously provided in honor of Thomas Graedel by the Nickel Institute, GE, A-1 Recycling, the Raw Materials Group Stockholm, and AT&T. The year 2017 was noteworthy for the Journal of Industrial Ecology, with special issues on Environmental Dimensions of Additive Manufacturing and 3D Printing1; Exploring the Circular Economy2; and Charting the Future of Life Cycle Sustainability Assessment.3 The special issues not only generated strong interest and citations, but also papers that attracted nominations for the Graedel Prizes. Four of the papers in the issue on the circular economy were nominated (Baxter et al. 2017; Blomsma and Brennan 2017; Moreau et al. 2017; Zink and Geyer 2017). A paper by Kua (2017) was nominated from the special issue on life cycle sustainability analysis (LCSA). Of the remaining eight nominations, published in regular issues, two addressed the urban scale (Cao et al., 2017; Dias et al., 2017); three were concerned with socioeconomic metabolism at national or global scales (Dai and Wang 2017; Efthimiou et al. 2017; Martinico-Perez et al. 2017); and three made contributions to life cycle assessment (LCA) and/or environmentally extended input-output analysis (Majeau-Bettez et al. 2017; Vadenbo et al. 2017; Ward et al. 2017). A large majority of the papers nominated were by first authors under the age of 36. Moreover, after the first