market economy vs free enterprise

market economy and free enterprise both are nouns.

Word	Noun	Adjective	Verb	Adverb
market economy	Yes	No	No	No
free enterprise	Yes	No	No	No

As nouns, market economy and free enterprise are synonyms defined as:

market economy and free enterprise: an economy that relies chiefly on market forces to allocate goods and resources and to determine prices

Other synonyms of market economy include laissez-faire economy, private enterprise.

market economy (noun)	free enterprise (noun)
an economy that relies chiefly on market forces to allocate goods and resources and to determine prices	an economy that relies chiefly on market forces to allocate goods and resources and to determine prices