著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Mahito Okura,Does Competition Really Promote Risk Management?,Discussion paper series,13440004,Nagasaki : Faculty of Economics,2014-01,2014,2,1-13,https://cir.nii.ac.jp/crid/1520572357975737984,