任何企业从事生产经营活动,就必须拥有一定的资金。企业的资金,按其所有权不同,可以分为自有资金和非自有资金。在非自有资金中,又包括借入资金和占用资金。从法学角度看,企业使用借入的资金是正当的、合法的,而占用别人的资金是非正当的、不合法的。因为前者得到了资金所有者的授权,不构成侵权行为;后者则恰恰相反,它是在未经许可的情况下擅自动用别人的资金,因而构成侵权行为。就企业来说,使用借入的资金与使用自有资金或占用他人资金的不同之处,就在于它必须付出一定的代价。这种代价,是企业为取得资金的使用权而付出的,它构成资金成本。因为资金成本是为取得资金的使用权而 Any enterprise that engages in production and business activities must have a certain amount of funds. The capital of enterprises can be divided into self-owned funds and non-owned funds according to their ownership. In non-ownership funds, it also includes borrowing funds and occupying funds. Judging from the perspective of law, it is legitimate and lawful for enterprises to use borrowed funds. It is illegal and unlawful to occupy other people’s funds. Because the former has been authorized by the fund owner, it does not constitute infringement; the latter, on the contrary, is the unauthorized use of other people’s funds, thus constituting a tort. As far as companies are concerned, the difference between using borrowed funds and using their own funds or occupying other people’s funds is that it must pay a certain price. This cost is paid by the company to obtain the right to use funds, which constitutes the cost of capital. Because the cost of capital is to obtain the right to use funds.