The average age of chief executive officers of the top 100 companies in South Korea is 59. The average tenure of these CEOs within their respective groups was 27 years.The proportion of science and engineering majors was 46.8 percent, 4.1 percentage points higher than the proportion of business and social science majors.A majority of the CEOs studied at the nation’s top three universities?Seoul National University, Yonsei University, and Korea University.