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World Bank, Washington, DC, 2014
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World Bank, Washington, DC, 2014
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World Bank, Washington, DC, 2014
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World Bank Group, Washington, DC, 2014
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World Bank, Washington, DC, 2014
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World Bank, Washington, DC, 2012
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Washington, DC, 2011
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Washington, DC, 2014
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Washington, DC, 2008
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Washington, DC, 2009
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World Bank, Washington, DC, 2009
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Elsevier BV, 2012