統計関連学会連合大会2017 Invited-Paper Session Session Title: Recent Developments in Missing Data Analysis Session Organizer: Kosuke Morikawa and Yutaka Kano (Osaka U) Session Chair: Takayuki Abe (Keio U) Jae Kwang Kim(Iowa State U) and Shu Yang (North Carolina State U) Predictive mean matching imputation in survey sampling Hejian Sang(Iowa State), Gyuhyeong Goh (Kansas State U) and Jae Kwang Kim (Iowa State U) Bayesian sparse propensity score estimation for unit nonresponse Kosuke Morikawa(Osaka U) and Jae Kwang Kim (Iowa State U) The identification problem for nonignorable nonresponse data Keiji Takai(Kansai U) Parameter estimation with the incomplete-data Fisher scoring method Yoshiharu Takagi(Sanofi K.K.) and Yutaka Kano (Osaka U) Bias reduction using auxiliary variables in clinical trial