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Smiling is a Costly Signal of Cooperation Opportunities: Experimental Evidence from a Trust Game
Centorrino, Samuele, (2011)
How do Roads Spread AIDS in Africa? A Critique of the Received Policy Wisdom
Djemaï, Elodie, (2009)
Take the highway? paved roads and well-being in Africa
Djemaï, Elodie, (2020)