Does anyone have any suggestions for estimating the "lifetime value" or of
a member to the art museum in terms of future membership and other cash
contributions?

In other words is there a formula for economic impact on the institution
if we bring in 10 members.  We can calculate renewal rates, but what other
factors and or values should be calculated?

TIA for any assistance.
Sally J. Clark
Director of Evaluations and Research
Art Institute of Chicago