I am going to look at the reason why some cities restore thier art works.
Certin cities invest a great deal of man power, money, and time to art.
I want to investigate the impact of deverting large amonts of resources to restoration instead of social programs. If so, you may be able to talk to professors of art or an art professional. You could also talk to museum directors and find out what they think about the subject. You could also search art magazines and journals. I really think the interviews with art directors would be your best bet.