The worst example of institutional weakness, argues Mr Coulibaly, was the sinking of a ferry in 2002, when more than 800 people perished.

ECONOMIST: Senegal

Delegating to others would mean wasting time, losing control of my projects, and worst of all, showing weakness in my ability to get the job done.

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Weakness in financial stocks continued, with Bank of America and JPMorgan Chase among the worst performers down more than 2% apiece.

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