【报告人】: 　Dr. Brantley Liddle( Asia Pacific Energy Research Centre, Tokyo, Japan)

【报告题目】: Revisiting environmental Kuznets curves (CO2 and SO2) with endogenous breaks modeling for individual OECD countries

【报告时间】： 2015年10月14日（周三） 上午9：30-11：30

【报告地点】：管理与经济学院 （主楼 6楼，能源与环境政策研究中心）

【报告摘要】:

　　Whether pollution first rises with income and then falls after some threshold level of income/development is reached, thus forming an inverted U-shaped relationship—an Environmental Kuznets Curve (EKC)—is one of the most popular questions in environmental economics. Such EKC analyses model emissions as a quadratic function of GDP per capita; an EKC between emissions per capita and income is said to exist if the coefficient for GDP per capita is statistically significant and positive, while the coefficient for its square is statistically significant and negative.This paper contributes to the EKCliterature by examiningthe CO2 emissions per capita and real GDP per capita relationship and the SO2 emissions per capita and real GDP per capita relationship for 23 and 25 OECD countries, respectively,using endogenous breaks modeling. We address several important issues that have historically plagued the EKC literature (ours is the only paper to address all these issues). Specifically, our approach (i) addresses the integration and cointegration properties of the data using recent econometric techniques; (ii) avoids the pitfall of performing a nonlinear transformation on integrated income; (iii) focuses on the time-series data of single countries, and thus, addresses the crucial question of a specific country’s evolution of its income-environment relationship; and (iv) sheds the restrictive polynomial model in favor of a flexible functional form. For 15 of 23 countries studied, the carbon emission-income relationship was either (i) decoupling—where income no longer affected emissions in a statistically significant way, or (ii) saturation—where the emissions elasticity of income is declining, less than proportional, but still positive. For only four countries did the emissions-income relationship become negative. By contrast, the predominant income-sulfur emissions relationship—the case for 24 of the 25 countries studied—was either (i) inverted-Vs, where theemissions-income relationship became negative, or (ii) decoupling.

【报告人简介】：
　　Brantley Liddle earned an interdisciplinary Ph.D. from the Massachusetts Institute of Technology’s Sloan School of Management and Department of Civil and Environmental Engineering. He was among the first both to write a sustainability-focused dissertation and effectively to complete a Ph.D. in systems engineering at MIT. Dr. Liddle has 30 peer-reviewed publications as first/sole author and his work has been cited over 470 times since 2013 (according to Google Scholar). Additionally, he is among the top 2% of authors in downloads from the Social Science Research Network over the past 18 months and he is in the top 5% of authors by 30-day views on academia.edu.  His areas of research interest/expertise include population change and the macro environment; energy and the macro economy; and transport and energy consumption.
　　Most recently, he was Vice President/Chief of Research/Special Advisor at the Asia Pacific Energy Research Centre in Tokyo. Prior to that posting, he led the energy/environment-economic modeling research program at the Centre for Strategic Economic Studies at Victoria University in Melbourne, Australia as a senior research fellow. Earlier, he had a postdoctoral fellowship in the population-environment-economy research group at the Max Planck Institute for Demographic Research in Rostock, Germany; and he served as an interdisciplinary economist at the US Department of Energy, where he worked on the National Energy Modeling System.
　　Dr. Liddle received a combined bachelor of science and arts in civil engineering and political science from Brown University.