Elasticity of Expectations - The Elasticity of Expectations

Japanese: 期待の弾力性 - きたいのだんりょくせい
Elasticity of Expectations - The Elasticity of Expectations

...This can be easily understood by considering, for example, capital investment by companies or stock investment by ordinary individuals and households. R. Hicks introduced the concept of "elasticity of expectations" as an index to describe the state of expectations for the future price of a certain good. It is an index that shows how a change in the current price affects people's expected future price, and is defined as ε when a 1% increase (decrease) in the current price is expected to cause an ε% increase (decrease) in the future price. ...

*Some of the terminology used to refer to "elasticity of expectations" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このことは,たとえば企業の設備投資や一般個人,家計の株式投資などを考えてみれば,容易にわかることであろう。ある財の将来価格に対する期待の在り方を記述する指標として,R.ヒックスは〈期待の弾力性〉という概念を導入した。それは現在価格の変化が人々の期待将来価格にどのような影響をおよぼすかを表す指標であって,現在価格の1%の上昇(下降)に対して,将来価格のε%の上昇(下降)が期待される場合,期待の弾力性はεであると定義される。…

※「期待の弾力性」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

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