<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "The double-edged sword of urbanization and its nexus with eco-efficiency in China"^^ . "Urbanization has made tremendous contributions to China�s economic development since its economic reforms and opening up. At the same time, population agglomeration has aggravated environmental pollution and posed serious challenges to China�s environment. This article empirically investigates the impacts of China�s urbanization on eco-efficiency, comprehensively reflecting economic growth, resource input, and waste discharge. We first measured the provincial eco-efficiency in China from 2005 to 2015 using the Super Slack-Based model (Super-SBM). We then constructed a spatial model to empirically analyze the effects of urbanization on eco-efficiency at the national level, and at four regional levels. The results indicated that the regional eco-efficiency in China has fluctuated, but is generally improving, and that a gap between regions was evident, with a trend toward further gap expansion. We observed an effect of spatial spillover in eco-efficiency, which was significant and positive for the whole country, except for the western region. The influence of urbanization on China�s eco-efficiency exhibited a U-curve relationship. The changing trend in the eastern, central, and western regions was the same as that in the whole country; however, the trend exhibited an inverted U-curve relationship in the northeastern region. To the best of our knowledge, covering a time period of 2005�2015, this article is the first of its kind to study the impact of urbanization on eco-efficiency in China at both the national and regional levels. This study may help policy-makers to create sustainable policies that could be helpful in balancing urbanization and the ecological environment. © 2020 by the authors. Licensee MDPI, Basel, Switzerland."^^ . "2020" . . "17" . "2" . . "MDPI"^^ . . . "International Journal of Environmental Research and Public Health"^^ . . . "16617827" . . . . . . . . . . . . . . . . . . . . . . . . . "F."^^ . "Ahmad"^^ . "F. Ahmad"^^ . . "S."^^ . "Ali"^^ . "S. Ali"^^ . . "L."^^ . "Yue"^^ . "L. Yue"^^ . . "M.U."^^ . "Draz"^^ . "M.U. Draz"^^ . . "F."^^ . "Shahzad"^^ . "F. Shahzad"^^ . . "D."^^ . "Xue"^^ . "D. Xue"^^ . . "J."^^ . "Li"^^ . "J. Li"^^ . . . . . "HTML Summary of #13554 \n\nThe double-edged sword of urbanization and its nexus with eco-efficiency in China\n\n" . "text/html" . .