noun
adaptive expectations
An economics concept where future expectations are formed based on past trends and experiences.
適応的期待の下では、人々は過去のインフレ率を基に将来の物価を予測する。
Under adaptive expectations, people predict future prices based on past inflation rates.
合理的期待 (rational expectations) assumes people use all available information to forecast, while 適応的期待 relies only on past data.
Compound of 適応 (adaptation) + 的 (-like) + 期待 (expectation), likely a calque of the English economics term 'adaptive expectations'.