| Summary/Abstract |
The mood of much of the world is grim these days. Turmoil in the Middle East, causing hundreds of thousands of deaths and millions of refugees [1]; random terrorist attacks across the globe; geopolitical tensions in eastern Europe and Asia; the end of the commodity supercycle; slowing growth in China [2]; and economic stagnation [3] in many countries—all have combined to feed a deep pessimism about the present and, worse, the future.
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