Debates about the U.S. Postal Service often focus narrowly on domestic policy choices, congressional mandates, or management decisions. But USPS is not an outlier; it is confronting the same structural shift affecting postal systems worldwide. For much of their history, national postal systems were built around letter mail as the core revenue stream supporting nationwide delivery networks. As digital communication has sharply reduced letter volumes, the economics of universal service have shifted: Its public value remains, but the revenue base that long financed it has eroded.
Declining letter revenue is straining universal service worldwide
Universal service obligations generally require a designated postal operator to deliver mail to every address at affordable and uniform rates, regardless of geography. In many countries, these obligations also include minimum delivery frequency standards and access to retail facilities. Maintaining that nationwide network entails substantial fixed costs: transportation routes, delivery personnel, sorting infrastructure, and local post offices.
For generations, letter mail formed the financial foundation of these systems. In Europe, North America, and elsewhere, postal networks were originally built to move written correspondence, and revenues from letters—often protected by statutory monopolies or reserved service areas—supported the expansion and maintenance of nationwide delivery routes. Over the past two decades, however, digital communication has sharply reduced traditional letter volumes.
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