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环境经济学讲座:Efficiency of Forest Carbon Policies at Intensive and Extensive Margins
发布日期:2020-12-18 12:00 来源:
时间:2020年12月18日(周五)15:30-17:30
地点:致福轩大教室
主讲人:田晓晖
主持人:徐晋涛
题目:Efficiency of Forest Carbon Policies at Intensive and Extensive Margins
摘要:
The economic potential of forest carbon sequestration is widely acknowledged. However, no consensus has been reached regarding the appropriate policy instrument for promoting carbon sequestration. In this paper, we develop a dynamic framework to measure the effects and efficiencies of alternative carbon policies. A stylized optimal control model of the timber market is first employed to illustrate the mechanisms through which different policies affect the decision-making of the forest sector at the extensive margin (i.e., changing forest areas) and the intensive margin (i.e. changing harvest ages). We then introduce carbon price projections and species-specific production information into a multi-age dynamic timber market model. Different carbon policies are simulated numerically. Our results reveal that a carbon tax on forest emissions without compensating sequestration leads to net carbon emissions and is thus the least efficient policy choice. Besides, policies incapable of increasing carbon uptake at the intensive margin result in very high efficiency losses. A per-hectare land subsidy may be more than 10 times more expensive than a per-ton carbon tax and subsidy policy or a carbon subsidy policy.
主讲人简介:
田晓晖,现任中国人民大学农业与农村发展学院副教授,美国俄亥俄州立大学农业经济学博士。研究方向为资源经济学、林业经济学和农业环境问题。研究成果发表在Land Economics,Journal of Monetary, Credit and Banking,Forest Policy and Economics, Australian Journal of Agricultural and Resource Economics等国际期刊,独立主持国家自然科学基金青年基金,担任多个国际和国内一流学术期刊审稿人。