Nancy Lozano Gracia Researcher World Bank Roles Researchers All contributions Exposure to air pollution for small firms in African cities Vittorio Bassi, Matthew Kahn, Nancy Lozano Gracia, Tommaso Porzio, Jeanne Sorin Policy brief Searching for customers, finding pollution Vittorio Bassi, Matthew Kahn, Nancy Lozano Gracia, Tommaso Porzio, Jeanne Sorin Working paper Share Share