capitalist economy vs capitalism

capitalist economy and capitalism both are nouns.

Word	Noun	Adjective	Verb	Adverb
capitalist economy	Yes	No	No	No
capitalism	Yes	No	No	No

As nouns, capitalist economy and capitalism are synonyms defined as:

capitalist economy and capitalism: an economic system based on private ownership of capital

capitalist economy (noun)	capitalism (noun)
an economic system based on private ownership of capital	an economic system based on private ownership of capital