noun
permanent income
Economic term referring to the long-term average income a person expects to earn, as opposed to temporary or windfall income.
恒常所得仮説は、消費が一時的な所得ではなく恒常所得に依存すると説明する。
The permanent income hypothesis explains that consumption depends on permanent income rather than temporary income.
一時所得 refers to temporary or one-time income, while 恒常所得 is the stable, expected income over the long term.
Compound of 恒常 (constant, permanent) and 所得 (income). The term is a direct translation of the English economic concept 'permanent income'.