出典:Wiktionary
From pluto- + -nomy. Google’s n-gram search suggests the Plutonomy was coined in late 1800s.[1] References to the term using n-gram can be found in books as early as 1851, in a book written by John Malcolm Forbes Ludlow titled “Christian Socialism and Its opponents”, where it was used in the context of wealth.
In modern use popularized by Ajay Kapur in a series of papers published during his tenure as Citigroup’s global strategist.[2]
plutonomy (countable かつ uncountable, 複数形 plutonomies)