Postal economist Dr. John Haldi and Bill Olson have co-authored a groundbreaking evaluation of Postal Service Worksharing. Their paper contains the first comprehensive study of revenues and costs of the Postal Service generated from upstream activities. It will be presented in Toledo, Spain in June 4-7, 2003, at the Eleventh “Conference on Postal and Delivery Economics” of the Center for Research in Regulated Industries at Rutgers University.
http://crri.rutgers.edu/post/index.html#PAST
An executive summary of the paper is available here.
Their paper comparing revenues and costs draws from draws from two prior papers which they also co-authored which explain the methodology used in greater depth.
Postal Revenues Earned from Workshared Activities
Postal Costs of Workshared Activities