CAJ | 학술논문

垄断伴随着市场势力，将导致社会福利的损失，垄断势力的福利效应是一个重要的研究内容。垄断势力最早由经济学家勒纳于1934年提出，1954年哈伯格沿着勒纳的研究思路，对美国垄断势力造成的福利损失进行了测度。其后很多经济学家对其研究结论展开争论，出现了大量的理论和实证研究文献。通过梳理垄断的福利损失测度的相关模型，如马歇尔剩余与希克斯剩余、塔洛克-波斯纳方法、莱宾斯坦-科马诺方法、迪克西特-斯特恩方法等，总结了研究的最新进展，分析表明这一研究对于在我国执行反垄断政策时把握反垄断的力度很有指导意义。
롱단반수착시장세력，장도치사회복리적손실，롱단세력적복리효응시일개중요적연구내용。롱단세력최조유경제학가륵납우1934년제출，1954년합백격연착륵납적연구사로，대미국롱단세력조성적복리손실진행료측도。기후흔다경제학가대기연구결론전개쟁론，출현료대량적이론화실증연구문헌。통과소리롱단적복리손실측도적상관모형，여마헐이잉여여희극사잉여、탑락극-파사납방법、래빈사탄-과마낙방법、적극서특-사특은방법등，총결료연구적최신진전，분석표명저일연구대우재아국집행반롱단정책시파악반롱단적력도흔유지도의의。
Monopoly and the induced market power will cause social welfare losses ,and the study on effect on monopoly power is an important part .Market power was proposed by Lerner in 1934 as a pioneering paper ,and Harberger estimated the welfare loss of monopoly in America following the track of Lerner . His research conclusion raised arguments , and many economists had lots of theoretical and empirical papers on this subject .This paper sorts out related models that measure welfare loss caused by monopoly , such as Marshall surplus VS Hicks surplus , Tullock-Posner Approach , Leibenstein-Comanor Approach and Dixit-Stern Approach . Based on these , we summarize the latest research ,and come to the conclusion w hich reveals that the study is significant in implementing the antitrust policy .