Greene worked many jobs to put himself through college at Johns Hopkins, where he graduated with a B.A. in economics and sociology in three years, and later Harvard Business School, where he earned his Master of Business Administration (MBA) degree in 1977.
Greene worked many jobs. This was to put himself through college at Johns Hopkins. He graduated with a B.A. in economics and sociology in three years. He graduated with a B.A. in economics and sociology in later Harvard Business School. He earned his Master of Business Administration (MBA) degree in 1977.