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[S.l.]: SSRN, [2015]
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[S.l.]: SSRN, [2013]
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Cambridge, Mass: National Bureau of Economic Research, June 2012
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Bonn: Institute for the Study of Labor (IZA), 2013
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University of Chicago Press, 2012
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Elsevier BV, 2013
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Wiley, 2024
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International Global Health Society, 2020
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International Global Health Society, 2020
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International Global Health Society, 2020
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BMJ, 2019
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International Global Health Society, 2019
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International Global Health Society, 2020