Review Essay: “The Global Economic Crisis: How to Stop Sustaining Unsustainability” Endgame: The End of the Debt Supercycle and How It Changes Everything . By John Mauldin and Jonathan Tepper. (John Wiley, 2011.) What's Next? Unconventional Wisdom on the Future of the World Economy . Edited by David Hale and Lyric Hale. (Yale University Press, 2011.) America's Challenge: Engaging a Rising China in the Twenty-First Century . By Michael D. Swaine. (Carnegie Endowment for International Peace, 2011.) The Future of Power . By Joseph S. Nye. (Public Affairs, 2011.) Libera