Education - the key to economic development

Starting from the question if higher education is enough to have success, I want to analyze the impact of years spent in school and university on adults. Good results in school translate into business success? A person with completed studies can be a skilled specialist who has mastered the field, but sentenced only to professional competence. More difficult is to put into practice, develop their skills alone, to adapt to the changing market demands, and that theoretical courses during the school could not provide. Teachers are not prophets, whether they are teachers of economics or they study economic cycles. Will knowledge acquired during studies help the good of the economy, its sustainable development?