商业竞争是市场经济的基础与要义。但现代经济学理论认为市场机制在资源配置与提高效率等方面存在着不完善的地方。市场不是万能的,市场失灵和缺陷是常有的,因此需要政府职能部门的行政力量和主要来自于新闻媒介的社会舆论的力量。政府的职能除了提供公共产品外,主要就足提供公平的竞争环境,减少和消除信息不对称现象引致的不公平现象,防范垄断,保护和扶持弱小势力,创造自由竞争的条件和氛围。政府可借助经济、法律和行政 Commercial competition is the foundation and essence of market economy. However, modern economic theory holds that there are imperfections in the market mechanism in terms of resource allocation and efficiency. Market is not a panacea, market failures and defects are common, and therefore require the administrative power of government departments and the power of public opinion, mainly from the media. Apart from providing public goods, government functions mainly provide a fair competitive environment, reduce and eliminate inequities caused by asymmetric information, prevent monopolies, protect and support weak and weak forces, and create conditions and atmosphere for free competition. The government can rely on economic, legal and administrative