Reading through the American Society of Aesthetics online articles I stumbled across one article
which caught my eye, mainly due to the double fact that the author is named as one Paul Mattick, and the title and contents both discuss the position of art in relation to capitalism and the contemporary economic downturn. It's possible that there is someone else who goes by the name of 'Paul Mattick' out there, but someone going by the name of Paul Mattick who writes like that about capitalism?
I also found a book by one Paul Mattick called 'Art in It's Time: Theories and Practices of Modern Aesthetics
'. The introduction already mentions Marx as an influence and uses the words 'use-value' and 'exchange-value'. Which leaves the only remaining questions as to why I haven't heard before that Mattick was a prolific writer on aesthetics and why I'm typing up this post on an internet forum instead of rushing to order a copy of that book.