* The Undercover Economist takes on the world - the new book from global bestseller Tim Harford

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Everything we know about solving the world's problems is wrong.

Out: Plans, experts and above all, leaders.

In: Adapting - improvise rather than plan; fail, learn, and try again

In this groundbreaking new book, Tim Harford shows how the world's most complex and important problems - including terrorism, climate change, poverty, innovation, and the financial crisis - can only be solved from the bottom up by rapid experimenting and adapting.

From a spaceport in the Mojave Desert to the street battles of Iraq, from a blazing offshore drilling rig to everyday decisions in our business and personal lives, this is a handbook for surviving - and prospering - in our complex and ever-shifting world.