This editorial in the Philadelphia Inquirer refers to 2006 Portfolio, published by the Greater Philadelphia Cultural Alliance and based on CDP data.
“Not many investments return $5 for every $1 put up - at least, not many legal investments.
“That eye-popping $5-to-$1 calculation comes from a new study of the impact of arts and cultural groups on the economy in Philadelphia and its Pennsylvania suburbs.”
“Commissioned by the Greater Philadelphia Cultural Alliance, the study shows that local governments see a five-fold return in tax revenues for each $1 of support to arts groups. Every dollar in state aid to the arts returns $2.50 to Harrisburg.”