Permanent income hypothesis

…After World War II, the so-called consumption function debate developed with the goal of improving the accuracy of forecasting American consumption demand and the goal of theoretically elucidating the fluctuations in the savings rate proposed by S. Kuznets. In this debate, M. Friedman proposed the permanent income hypothesis. Friedman divided the actually observed income (measured income) into the permanent income portion and the transitory income portion, and attempted to explain the fluctuations in the savings rate by dividing it into the long-term trend portion that depends on the former permanent income and the short-term fluctuation portion that depends on the latter transitory income. …

*Some explanations of terms that refer to the "permanent income hypothesis" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…第2次大戦後，アメリカの消費需要の予測精度を高めるという目的とS.クズネッツの提起した貯蓄率変動の理論的解明という目的とから，いわゆる消費関数論争が展開された。その論争のなかでM.フリードマンは，恒常所得仮説permanent income hypothesisを提唱した。フリードマンは，実際に観測される所得measured incomeを恒常的所得部分permanent incomeと変動的所得部分transitory incomeに分けたうえで，貯蓄率の変動を前者の恒常所得に依存する長期的趨勢分と後者の変動所得に依存する短期的変動分とに分けて説明しようと試みる。…

※「permanent income hypothesis」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報