该文认为商品林生产具有正的外部性，市场失灵使生产者将不能提供社会真正所需要的商品林数量。
It holds that the production of commercial forest has positive externalities and its producers can't provide enough commercial forest truly required by the society under market failure.
商品林经营是森林分类经营指导下的新的森林经营方式，有其特殊的生产规律。
Commercial forest management is a new way of forest management featuring a special productive regular pattern under the guidance of classified management.
应用推荐