Keynesian vs follower

Keynesian and follower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Keynesian	Yes	Yes	No	No
follower	Yes	No	No	No

As nouns, follower is a hypernym of Keynesian; that is, follower is a word with a broader meaning than Keynesian:

Keynesian (noun)	follower (noun)
a follower of the economic theories of John Maynard Keynes	a person who accepts the leadership of another
	someone who travels behind or pursues another

Keynesian (adjective)	follower (adjective)
of or relating to John Maynard Keynes or to his economic theories