Tomorrow's business leaders will need to be nimble and able to incorporate all aspects of good decision making in an increasingly global and complex business environment. Ethical leadership is vital to the future of American business. Today's executives should take an active role with business schools to ensure that current students are fully prepared for the responsibility and authority they will take on. In 2004, as part of our overall efforts to build and sustain public confidence in the marketplace, Business Roundtable-- an association of chief executive officers of 160 leading U.S. companies with 4.5 trillion in annual revenues and more than 10 million employees-- established the Business Roundtable Institute for Corporate Ethics. The Institute brings leaders from business and academia together to renew and enhance the link between ethical behavior and business practice. This report-- Shaping Tomorrow's Business Leaders: Principles and Practices for a Model Business Ethics Program-- identifies key principles and leading practices and recommends actions for developing strong ethics programs and building an aspiring vision of the future for tomorrow's business leaders.