我院教师杨培方在环境和资源经济学顶级期刊JEEM发表论文

      我院教师杨培方与Colorado School of Mines教授 Graham Davis合作的论文“Non-renewable resource extraction under financial incentives to reduce and reverse stock pollution”近期被经济学期刊Journal of Environmental Economics and Management (JEEM) 录用发表。JEEM创刊于1974年，是SSCI收录期刊，由Elsevier出版社出版，是环境和资源经济学领域公认的顶级学术期刊，致力于发表这一领域顶尖水平的理论和实证文章。
      该研究对资源开发利用造成的污染治理提出了新的理论，并论证了现行相关环境政策失败的原因。以采矿造成的土壤污染为例，该论文研究了三种不同的污染成本内部化政策：1）要求企业在生产结束之后进行环境修复；2）对企业在生产过程中造成的污染排放征税；3）对企业生产过程中及生产结束后造成的污染存量征税。研究发现，采取第三种政策可以促进企业按照自己的污染控制成本选择最有利的方式控制污染，并在闭矿之后及时进行环境修复。该研究成果对环境政策的制定提供了科学参考。论文全文请参见链接https://doi.org/10.1016/j.jeem.2018.09.007。

      论文摘要：
This paper examines the impacts of three types of financial incentives on non-renewable resource extraction that produces reversible stock pollution. A particular emphasis is the timing of remediation. We show that traditional standards-based regulation incentivizes operators to delay remediation. A policy that instead requires the operator to pay ongoing damages from the pollution stock via a Pigouvian stock tax is socially optimal and provides the operator with the correct incentives to remediate the pollution stock. A Pigouvian pollution flow tax, which has been a popular recommendation in the stock pollution literature, does not generate these remediation incentives. Nor do financial assurances, also known as reclamation bonds. The financial incentives embodied in mine regulatory reform in the United States, China and Western Australia have no explicit intention of implementing a Pigouvian stock tax. They are therefore unlikely to incentivize optimally timed remediation by the firm, even though the policy reforms have been driven by a recognition that past standards-based policies were ineffective at incentivizing timely remediation.