中文摘要：

以厂商采用污染治理新技术后利润的变化为基础,分析了排污权拍卖、排污权免费分配、排污税、污染排放标准等环境政策对厂商污染治理技术进步的激励问题。研究结论表明,当厂商是排污权的购买者时,环境政策对厂商污染治理技术进步激励的大小顺序为：排污权拍卖、排污权免费分配、排污税、污染排放标准;当厂商是排污权的出售者,并且污染治理技术进步使排污权价格下降足够小时,环境政策对厂商污染治理技术进步激励的大小顺序为：排污权拍卖、排污税、污染排放标准、排污权免费分配。

英文摘要：

Based on changes of manufacturers＇ profit,this paper analyzes how emission rights auction,free allocation of emission rights,emission taxes and pollution emission standards encourage manufacturers to use new pollution control technology.The study indicates that on the one hand when the manufacturer is a purchaser of emission rights,the sequence of the encouragement extent of environmental policies to the manufacturers is emission rights auction,free allocation of emission rights,emission taxes,pollution emission standards;on the other hand,when the manufactur is a seller of emission rights and the pollution control technology decreases emission rights price to a cheap enough level,the sequence of the encouragement extent of environmental policies to the manufacturers is emission rights auction,emission taxes,pollution emission standards,free allocation of emission rights.