This paper explores market and regulatory themes developed and debated at CRRI (now EUI-CRRI) Conferences on Postal and Delivery Economics. These include efficiency of postal operators, universal service and financing, third-party access to postal networks, and full market opening (FMO). Thematic development has relied on the cross-fertilizing mixture of participants that includes academics, national postal providers, mail competitors, express courier services, regulators, law scholars, consultants, technology experts and unions.