consumption vs political economy

consumption and political economy both are nouns.

Word	Noun	Adjective	Verb	Adverb
consumption	Yes	No	No	No
political economy	Yes	No	No	No

consumption (noun)	political economy (noun)
the act of consuming something	the branch of social science that deals with the production and distribution and consumption of goods and services and their management
the process of taking food into the body through the mouth (as by eating)
(economics) the utilization of economic goods to satisfy needs or in manufacturing
involving the lungs with progressive wasting of the body