The problem is international, said Michael Crew, professor of regulatory economics at Rutgers Business School.
“The current prospects are grim for mail but in the past it has beaten off many challenges,” he said.
When telephones were widely installed, people thought it would kill the postal service. Fax machines also prompted angst over mail’s future. Then came the Internet — but postal use continued to grow globally until about 2007, said Prof. Crew.