Ian (Mac) C. MacMillan is the academic director of the Sol C. Snider Entrepreneurial Center and Dhirubhai Ambani professor of entrepreneurial management at the Wharton School, University of Pennsylvania. He has also been a director of companies in the travel, import/export and pharmaceutical businesses in the United States, South Africa, Canada, Hong Kong, and Japan. He has also consulted to numerous companies, including Microsoft, DuPont, General Electric, IBM, and Citibank. He is coauthor of the bestselling books Corporate Venturing, The Entrepreneurial Mindset, Market Busters, Unlocking Opportunities for Growth, and Discovery Driven Growth. James D. Thompson, PhD, is co-founder and director of the Wharton Social Entrepreneurship Program. His current research is focused on social entrepreneurship, future market growth, and investment under conditions of high uncertainty. He has extensive experience in Africa and works around the world with organizations intent on growth in value. Jim has been published in the Harvard Business Review, Journal of Management, Long Range Planning, Management Science, Organization Science, and the Research-Technology Management Journal.