The target of the current environmental economic policy focuses only on how to minimize the harmful external effects caused by some market parties, through tradable permits and pollution charges.

• 因为外部效应除了外部不经济以外,还有外部经济,现行的环境经济政策只考虑了前者却完全忽视了后者,只强调了外部成本的内部化却忽视了外部收益也应该内部化。