Time preference

Japanese: 時間選好 - じかんせんこう(英語表記)time preference
Time preference
The degree to which one prefers consuming in the present over consuming in the future is called the rate of time preference, or simply time preference. Conventional economic theory is built on the basis of an individual's utility (satisfaction) obtained from consumption activities from the present to the future. Time preference is one of the factors that specify the structure of that utility. Specifically, it is defined as the value obtained by subtracting 1 from the increase in future consumption required to maintain the same utility as before when current consumption is reduced by one unit.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
将来に消費することよりも現在に消費することを好む程度を,時間選好率rate of time preferenceあるいは単に時間選好と呼ぶ。通常の経済理論は,現在から将来にわたる消費活動によって得られる個人の効用(満足感のこと)を基礎にして組み立てられている。その効用の構造を特定化する要因の一つが時間選好である。具体的には,現在の消費量を1単位減少させたときに以前と同じ効用を維持するうえで必要とされる将来の消費量の増加から,さらに1を差し引いた値として定義される。

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

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