When and why did commissioning art die as a cultural concept? (ie. if I go to a museum it feels like 80% of art older than one century was a commission and only 1% of art made within the last 50 years was a commission)

by SirTechnocracy

I have looked into the concept quite a lot as I have a company in the area and have my own "theories" as to what killed it but I would rather know why it actually went away then stick with the made up reasons I came up with.
Even just pointing me to something I could read on the topic would be incredibly helpful.

HIGGINS28

In NYC, 1% of commercial real estate budgets above some threshold must be allocated for the commission of art projects. I know nothing of the rest of the world but this is how it works here......http://www.nyc.gov/html/dcla/html/panyc/faq.shtml