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New Frontiers Beyond Risk and
Uncertainty: Ignorance, Group
Decision, and Unanticipated Themes
Richard Zeckhauser
Harvard Kennedy School, Cambridge, MA, USA
What are the major challenges confronting the world today? Among the top few,
many people would list recovering from the world’s prolonged recession, dealing with
Islamist terrorism, and coping with climate change. Yet a mere 15 years ago, none of
these issues would have been a prominent concern. Big surprises in the policy sphere
vividly illustrate the uncertainty of our world and the importance of strategies for cop-
ing with uncertainty. Many of the chapters in this volume point the w ...