For nearly two decades, the World Bank’s finest and most operative product has been its Ease of Doing Business Index. With 10 clear measurements, such as how easy it is to pay taxes or get electricity, it has informed decision-makers in business how easy or difficult it is to work in 190 countries. It has also told the governments in those countries what they need to do to improve their business environments. No World Bank tool has had as great and positive an impact in promoting reforms and defeating corruption. Therefore, naturally, it has been controversial.

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