Giffen, R.

Japanese: ギッフェン,R. - ぎっふぇん
Giffen, R.

…On the other hand, if a good is an inferior good (normal good) that increases (decreases) demand in response to a decrease in income, the income effect increases (decreases) demand. Therefore, the Giffen paradox only occurs when a good is an inferior good and its income effect exceeds the substitution effect. Robert Giffen (1837-1910), a British economist and statistician, was the first to point out this phenomenon. …

*Some of the terminology that mentions "Giffen, R." is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…他方,所得の減少に対して需要を増加(減少)させる劣等財(正常財)であれば,所得効果は需要を増加(減少)させる。したがって,財が劣等財で,しかもその所得効果が代替効果を凌駕(りようが)するときにのみ,ギッフェンの逆説が生じる。この現象を最初に指摘したギッフェンRobert Giffen(1837‐1910)は,イギリスの経済学者,統計学者である。…

※「ギッフェン,R.」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。

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