?????. ???? BK21 ??????.2012? 6? 11? ????? ???? ??? ??? ????.???? BK21 ????? Sukjin Han (Department of Economics, Yale University)???? ??? ??? ??? ?? ????? ??? ?? ??? ????? ?????? ?? ??? ?? ????. ?????? ??? ?? ?????. ?????.------------------------ ? ?-------------------------? ? : 6? 11? ??? ?? 10? ~ 12? ? ? : ?????? B109?? ? : Nonparametric Triangular Simultaneous Equations Models with Weak Instruments???? BK21 ???? ??? ??? ?? • ??? TEL : 02-2123-4430 / FAX : 02-393-1158 http://ecobk21.yonsei.ac.kr/