merchandising vs commercialism

merchandising and commercialism both are nouns.

Word	Noun	Adjective	Verb	Adverb
merchandising	Yes	No	No	No
commercialism	Yes	No	No	No

As nouns, commercialism is a hypernym of merchandising; that is, commercialism is a word with a broader meaning than merchandising:

merchandising: the exchange of goods for an agreed sum of money
commercialism: transactions (sales and purchases) having the objective of supplying commodities (goods and services)

Other hypernyms of merchandising include commerce, mercantilism.

merchandising (noun)	commercialism (noun)
the exchange of goods for an agreed sum of money	transactions (sales and purchases) having the objective of supplying commodities (goods and services)
the business of drawing public attention to goods and services
branded products meant to promote another product, especially films and pop groups