In most developed countries, a high proportion of the population (up to 50%) now enter higher education at some time in their lives. Higher education is therefore very important to national economies, both as a significant industry in its own right and as a source of trained and educated personnel for the rest of the economy. For the subfield of formal epistemology and computer science, see Formal learning theory. Regardless of setting, educational methods include teaching, training, storytelling, discussion, and directed research.

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