Itó, Junichi. The determinants of rates of return to scale expansion investment in japanese livestock production : a stochostic frontier cost function approach - Tokyo : National Research Institute, 1992 - 20 p - Research paper ; 11 . - Research paper ; 11 . LCCN: 6944 Subjects--Topical Terms: Ganadería--Japón.Ganado--Producción.