Harford explains lucidly how the free market determines how resources are allocated, why it seems to work well much of the time, why it fails under some circumstances, and what sort of government actions would appropriately address those failures. Much of the latter half of the book is devoted to the effects of increased global trade, including a whole chapter on the miraculous success of China. I didn't find all of it well argued; for example, his argument that globalization is not significantly harmful to the environment was painted in broad strokes and not well-supported. But overall, this book is an enjoyable elucidation of the world's dominant economic model, and should be read by anyone who... well, votes.
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