Globalization and free trade won the day for decades. National governments made deals, and opened borders to goods and capital, though not without sceptics, and in some cases massive protests. It led to remarkable growth, but also, real problems, such as growing inequality. Rana Foroohar is global business columnist and associate editor at the Financial Times, and global economic analyst for CNN. Her new book, "Homecoming: The Path to Prosperity in a Post-global World," diagnoses what happened and offers a sober analysis of what should come next.

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