CAJ | 학술논문

几乎所有的文献都从＂市场煤＂与＂计划电＂的体制矛盾入手分析电煤价格持续上涨及发电企业经营困难的主要原因与相关对策。作者认为,在近年来电煤市场供求总量基本平衡的前提下,电煤市场价格持续大幅度上涨与发电企业买方市场集中度有关。本文运用讨价还价模型,分析了买方市场集中度变化即改单一发电企业购煤为发电集团公司统一购煤甚至多家发电集团公司统一购煤对电煤均衡价格的影响。结果表明：提高买方市场集中度能有效降低电煤市场均衡价格。
궤호소유적문헌도종＂시장매＂여＂계화전＂적체제모순입수분석전매개격지속상창급발전기업경영곤난적주요원인여상관대책。작자인위,재근년래전매시장공구총량기본평형적전제하,전매시장개격지속대폭도상창여발전기업매방시장집중도유관。본문운용토개환개모형,분석료매방시장집중도변화즉개단일발전기업구매위발전집단공사통일구매심지다가발전집단공사통일구매대전매균형개격적영향。결과표명：제고매방시장집중도능유효강저전매시장균형개격。
The continuously-rising price of coal tor power generation and its negative influence on financial status of power companies is always attributed to the institutional contradiction between ＂marketed coal＂ and ＂planned electricity＂ by almost all of the reference papers. We believe the essential cause is originated from buyer＇s market concentration rate in the coal market on the basis of more or less balance of supply and demand of the coal in recent years. The paper analyzed the changes of equilibrium price vary with the adjustment of the buyer＇s market concentration rate from one power company alone to power company group unitarily even more power company groups together with the bargaining model. The conclusion indicates that buyer＇s market concentration fate＇s enhancement can effectively reduce the equilibrium price of coal.