@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042431,
 author = {Nishimura, Kiyohiko G. and Nakajima, Takanobu and Kiyota, Kozo},
 month = {Jun},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Innovation Versus Diffusion : Determinants of Productivity Growth Among Japanese Firms},
 year = {2005}
}