环境具有外部性,环境污染所造成的外部不经济已引起人们的广泛重视,各国纷纷制订环境政策加以限制。但是,由于国家间存在环境禀赋,历史背景和经济发展水平等方面的差异,因此各国的环境政策也不尽相同。在开放经济条件下,各国不同的环境政策势必对国际贸易产生影响。本文拟通过分析来加以说明。 The environment has externalities, and the external diseconomy caused by environmental pollution has attracted widespread attention. Countries have formulated environmental policies to limit them. However, due to differences in environmental endowments, historical backgrounds, and economic development levels between countries, the environmental policies of various countries are not the same. Under the conditions of an open economy, different countries’ environmental policies will inevitably have an impact on international trade. This article intends to explain through analysis.