Jonathan L.S. Byrnes is a Senior Lecturer at MIT. He has authored over 100 books, articles, cases, notes, and expert submissions. He wrote a monthly column on managing profitability, "The Bottom Line," in Harvard Business School's e-newsletter. Byrnes also runs a consultancy through which he has advised over 50 major companies and industry associations. He has served on the Advisory Boards of Objectiva Software and Autopart International, and is currently on the Advisory Boards of danoo, OCO, and WaveMark.