The document discusses the concept of cooperative databases where competitors agree to pool customer data. Being located near competitors provides advantages from access to specialized talent and suppliers. While competitors, analyzing pooled historical customer data from many companies allows for more accurate predictions of future customer behavior than any single company could achieve alone. Successful cooperative databases require companies to contribute high quality data and only share it with partners who will also provide valuable data in return. The document provides examples of cooperative databases that have formed in Germany and other countries to share customer transaction data among mail order companies.