1. Cost of Innovation in the Pharmaceutical Industry;Dimasi;J. Health Econ,1990
2. The Price of Innovation: New Evidence of Drug Development Costs, 22 J. Health Econ;Dimasi;_,2003
3. Macaulay also described feedback mechanisms where buyers issue "report cards" to management of sellers;Stewart Macaulay;Non-Contractual Relations in Business: A Preliminary Study,1963