市场权力是指在市场环境中一个或一组企业对某一产业价格和生产决策的控制程度。拥有市场权利的公司可以通过控制发电量或价格来达到影响市场价格的目的。市场权利存在于很多市场中 ,在低准入条件的市场中 ,市场权利的存在时间较短 ,反之市场权利会存在较长的时间。市场权力的存在并不一定需要政府的干预 ,一定程度的市场权力对建立公平的政策有很重要的意义。 Market power refers to the extent to which a group or group of companies controls the price and production decision of an industry in a market environment. Companies with market rights can achieve the purpose of affecting market prices by controlling the amount of electricity produced or prices. Market rights exist in many markets, and in the market with low access conditions, market rights exist for a short period of time, whereas market rights may exist for a longer period of time. The existence of market power does not necessarily require government intervention. A certain degree of market power is of great significance to the establishment of a fair policy.