In the year 1000, the economy of the Middle East was at least as advanced as that of Europe. But by 1800, the region had fallen dramatically behind--in living standards, technology, and economic institutions. In short, the Middle East had failed to modernize economically as the West surged...

One of Islam's five canonical pillars is a predictable, fixed, and mildly progressive tax system called zakat. It was meant to finance various causes typical of a pre-modern government. Implicit in the entire transfer system was personal property rights as well as constraints on government—two...