downsizing vs economy

downsizing and economy both are nouns.

Word	Noun	Adjective	Verb	Adverb
downsizing	Yes	No	No	No
economy	Yes	No	No	No

As nouns, economy is a hypernym of downsizing; that is, economy is a word with a broader meaning than downsizing:

downsizing: the reduction of expenditures in order to become financially stable
economy: an act of economizing; reduction in cost

Other hypernyms of downsizing include saving.

downsizing (noun)	economy (noun)
the reduction of expenditures in order to become financially stable	an act of economizing; reduction in cost
	frugality in the expenditure of money or resources
	the efficient use of resources
	the system of production and distribution and consumption