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) Robert C. Johnson,Trade and prices with heterogeneous firms,Journal of International Economics,0022-1996,Elsevier BV,2012-01,86,1,43-56,https://cir.nii.ac.jp/crid/1362825895157908992,https://doi.org/10.1016/j.jinteco.2011.09.004