Taskin, F.Zaim, O.2015-07-282015-07-2820000165-1765http://hdl.handle.net/11693/13490The paper constructs environmental efficiency indexes for a sample consisting of high- and low-income countries using nonparametric production frontier techniques and then establishes an environmental Kuznets relationship for environmental efficiency by Nadaraya-Watson kernel estimation methodology. (C) 2000 Elsevier Science S.A. All rights reserved. JEL classification: Q25; Q32.EnglishEnvironmental Kuznets curveKernel estimationNonparametric methodsSearching for a Kuznets curve in environmental efficiency using kernel estimationArticle10.1016/S0165-1765(00)00250-01873-7374