Despite the world's elation at the Arab Spring, shockingly little has changed politically in the Middle East; even frontliners Egypt and Tunisia continue to suffer repression, fixed elections, and bombings, while Syria descends into civil war. But in the midst of it all, a quieter revolution has begun to emerge, one that might ultimately do more to change the face of the region: entrepreneurship. As a seasoned angel investor in emerging markets, Christopher Schroeder was curious but skeptical about the future of investing in the Arab world. Traveling to Dubai, Cairo, Amman, Beirut, Istanbul,...