【摘要】 煤炭价格不仅决定于生产成本 ,还决定于内化成本 .内化成本在消除外部性的同时 ,总是不可避免地在一定时间范围内、一定程度上抬高煤炭价格 ,致使煤炭企业的内化政策并不是立刻就能起到预期效果 ,而是经过一段时间的适用过程 ,逐步达到内化政策的目标 .更多还原

【Abstract】 The price of coal is determined not only by production cost, but also by internalized cost. While eliminating the exteriority of coal enterprises, the internalized cost, to some extend and in a certain time, drives up the coal price inevitably. And it leads to that the internalized policy cant obtain the expect effects immediately, and only can get to the internalized policy goal by step after a applying process.更多还原