产业经济研究
產業經濟研究
산업경제연구
Industrial Economics Research
2011年
1期
21~30
,共null页
市场势力 煤电矛盾 纵向约束 潜在福利损失
市場勢力 煤電矛盾 縱嚮約束 潛在福利損失
시장세력 매전모순 종향약속 잠재복리손실
market power; the confliction between coal and electricity ; vertical restraints ; potential welfare lost
多年来煤电矛盾一直困扰我国经济发展,且近年来呈加剧之势。煤电行业相对市场势力是分析煤电矛盾的关键环节,根据新经验产业组织学的分析框架和GMM方法估计了2005~2008年煤炭和火电行业的市场势力及煤电产业链的潜在福利损失。研究表明:煤炭、火电行业市场势力溢价分别为1.10和0.87,煤炭行业行使相对市场势力而火电行业因电价规制无法传导成本提高是造成煤电矛盾的重要原因;煤电产业链的潜在福利损失平均相当于当年GDP的2.9%左右。
多年來煤電矛盾一直睏擾我國經濟髮展,且近年來呈加劇之勢。煤電行業相對市場勢力是分析煤電矛盾的關鍵環節,根據新經驗產業組織學的分析框架和GMM方法估計瞭2005~2008年煤炭和火電行業的市場勢力及煤電產業鏈的潛在福利損失。研究錶明:煤炭、火電行業市場勢力溢價分彆為1.10和0.87,煤炭行業行使相對市場勢力而火電行業因電價規製無法傳導成本提高是造成煤電矛盾的重要原因;煤電產業鏈的潛在福利損失平均相噹于噹年GDP的2.9%左右。
다년래매전모순일직곤우아국경제발전,차근년래정가극지세。매전행업상대시장세력시분석매전모순적관건배절,근거신경험산업조직학적분석광가화GMM방법고계료2005~2008년매탄화화전행업적시장세력급매전산업련적잠재복리손실。연구표명:매탄、화전행업시장세력일개분별위1.10화0.87,매탄행업행사상대시장세력이화전행업인전개규제무법전도성본제고시조성매전모순적중요원인;매전산업련적잠재복리손실평균상당우당년GDP적2.9%좌우。
In recent years the confliction between coal and electricity always obsessed the development of economy and it has the aggravating trend. The paper argues that comparative market power is the key problem in the analysis of this confliction. Then the paper estimates the market power of coal and electricity industry during the period from 2005 to 2008 with the method of GMM in the framework of NEIO, and evaluates the potential welfare lost. The result shows that the mark - up of coal and electricity are 1.10 and O. 87, so confliction between coal and electricity is resulting from coal industry undertakes the comparative market power but electricity industry can't transmit this cost increasing for products' price regularity. According to the result, the potential welfare lost is equivalent to the amount of GDP about 2.9%. Furthermore, we can get the conclusion that the coal industry is not real perfect competition. Also, we need to breakup the monopoly of railway transportation to allay the confliction between coal and electricity, but also judges and weighs in cautious on the horizontal integration of coal corporations.