noun
capital base
Financial term referring to the core capital or equity foundation of a company or financial institution.
銀行は十分な資本基盤を維持しなければならない。
Banks must maintain a sufficient capital base.
自己資本 refers specifically to equity capital or net worth, while 資本基盤 is a broader term for the overall capital foundation.
Compound of 資本 (capital) and 基盤 (foundation, base).