band discount; internal discount
A discount applied within a specific price band or tier, often used in financial or business contexts such as bond pricing or internal pricing structures.
この債券には内割引が適用されている。
A band discount is applied to this bond.
Compound of 内 (uchi, 'inside, internal') and 割引 (waribiki, 'discount'). The exact historical derivation is uncertain; the term is used in specialized financial contexts.