Correspondence courses, originally done by mail, are now done primarily online. Some schools are purely "correspondence schools" or "online schools" and have no physical campus. An ever-increasing number of colleges and universities provide correspondence or "distance learning" programs. Educational resources, coursework and degrees in economics are available by correspondence.
UNC offers self-paced coursework in economics for part-time students. Coursework, including "Fundamentals of Economics" and "Intermediate Microeconomics" is credited. Credits are provided through the North Carolina State University. Texts include "Economics: Private and Public Choice" and "Intermediate Economics, 10th Edition."
The London School of Economics (part of the University of London) is among the premier economics schools in the world. The University of London International Programmes has made correspondence programs available to students around the world since 1858. Former students include Nelson Mandela and six other Nobel Prize winners. Coursework in economics is available, including undergraduate and graduate degrees in economics.
Massachusetts Institute of Technology has a unique resource in independent study in economics and other fields. MIT's OpenCourseWare makes economics course material available, and nearly all MIT courses material, free to anyone in the world with Internet access. Materials include economics curricula, list of texts, lecture notes, text questions and answers, along with audio and video lectures. Nearly all the resources available to students enrolled in MIT's extensive economics curricula are available to anyone interested in independent study in economics.