ROI - Return on Investment

Japanese: ROI - あーるおーあい/ROI(英語表記)return on investment
ROI - Return on Investment
The ratio of how much profit can be generated relative to the amount invested. The higher the ROI, the more efficient the investment and the more profitable it is. The minimum condition for investment is that the ROI is higher than the cost of capital. When raising capital required for investment, the company must pay the provider a commensurate remuneration. The ratio of the amount provided to the cost of capital (%), so the company must achieve a profit rate that exceeds that. ROI is an indicator of how much profit is made from the investment. However, ROI itself is originally measured for each individual investment project, and shareholders and investors cannot know the individual figures. In this sense, financial ratios such as return on total capital used in management analysis do not directly represent the size of ROI, but they can give an idea of ​​the degree of profitability achieved by the company as a whole. The ratio with current profit as the numerator and total capital as the denominator is called current return on total capital, and is an important indicator of the efficiency of capital utilization. During the high-growth period, the ROI of the manufacturing industry fluctuated around 5%, but due to the economic downturn, it has remained at around 2% since fiscal 1992. It subsequently recovered to 3.47% in fiscal 2003 and 4.29% in fiscal 2004. In addition to ROI, there is also something called return on equity (ROE), which indicates the efficiency of obtaining profits that belong to shareholders. In the United States in particular, it is considered an important indicator of the ability of management.

(Akihiro Koyama, Professor, Gakushuin University / 2007)

Source : "Chiezo" published by Asahi Shimbun Publications Co., Ltd. About Chiezo

Japanese:
投資額に対して、どれだけ利益を生み出せるかの比率。ROIが高いほど投資効率が高く、有利な投資ということになる。投資の最低条件は、ROIが資本コストより高いことである。投資に必要な資本を調達する時、その提供者には、会社はそれに見合った報酬を出さなくてはならない。提供額に対するその比率が資本コスト(%)であるから、会社としてはそれを上回る利益率を上げなくてはならない。その投資による儲かり方の程度を表す指標がROI。ただし、ROI自体は本来、個別の投資案件ごとに測定されるもので、その個々の数値を株主や投資家が知ることはできない。この意味で、経営分析で利用される総資本利益率などの財務比率は、そのままROIの大きさを表すものではないが、企業が全体としてどの程度の利益率を達成しているかをうかがい知ることはできる。分子を経常利益、分母を総資本としたものを総資本経常利益率と呼び、資本の利用効果率を示す重要な指標である。高度成長期には、製造業のROIは5%前後で推移していたが、景気後退により、1992年度以来2%台程度にとどまっていた。その後2003年度は3.47%、04年度は4.29%まで回復した。ROIの他に株主資本利益率(ROE)と呼ばれるものもあり、株主に帰属する利益の獲得の効率性を意味している。特に米国では経営者の能力を表す重要な指標とされる。

(小山明宏 学習院大学教授 / 2007年)

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