The purpose of this paper is to review recent literatures on Non-Keynesian effects pioneered by Giavazzi and Pagano (1990), and discuss the current situation on domestic studies in this area. The results are: (1) Perotti (1999) and Hjelm (2002) are superior to the others since only these two studies have theoretical foundations for estimation functions, (2) we have only two domestic studies in this field, Nakazato (2002) and Takeda, Komaki and Yajima (2005), and both of them applied Perotti (1999)'s frameworks, (3) therefore, we should analyze this topic with Hjelm (2002)'s frameworks as well.