投資の限界効率 とうしのげんかいこうりつ Meanings Expression, Noun marginal efficiency of investment Kanji 投 throw. Read as トウ. 資 resource 限 limit. Read as ゲン. 界 realm. Read as カイ. 効 effect. Read as コウ. 率 rate. Read as リツ. Jinuma: Japanese Dictionary · Word lists