What does the word plutonomy mean?
here's one definition:
The science of wealth or riches.
The study of the production and distribution of wealth
and an example from Progressive Bloggers:
Including the disaster capitalists who, in Naomi Klein's book, thought that they could own the world and simply jet away from all natural disasters to some well-appointed, "plutonomy" - friendly desert island.
Here's an 1854 excerpt from the Christian Remembrancer Volumes 27-28 page 459:
Mr. Ludlow who is an uncompromising advocate of the rights of labor, observes: 'So longe, therefore, as your competitive plutonomy confines itself to its scientific field, to its dead subject-matter of wealth, we socialists have to listen to it and learn from it
There's also a good definition and infographic about plutonomy in pages 231-232 of George L. Fouke's Damn The Warocracy:
hope this helps! :)