Why Do We Know So Little About Arts Funding Ecosystems?

"Do major capital campaigns have any effect on fundraising for either their peer groups, or the local field as a whole?  Does the existence of an arguably overcrowded field in a particular discipline, affect the fundraising of all the members of that single class?  What are the variables in a local funding ecosystem that play a role in the success or failure of the fundraising efforts of all those in the area, and in particular, the efforts of each?  Do some efforts result in a ca