On public goods theory, professional competitive sport service goods has certainly nonrival and exclusive features in consumption is belong to quasi-public goods category. 根据公共产品理论,职业竞技体育服务产品在消费上,具有一定程度的非竞争性和排他性,属于准公共产品范畴。
A good is nonrival if for any given level of production, the marginal cost of providing it to an additional consumer is zero. 如果一种商品在生产的任意给定水平,向额外消费者提供商品的边际成本为零,那么不存在竞争。