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This paper aims to estimate the social costs (negatives externalities) caused by the current Brazilian autonomous fleet of trucks in national agriculture. The emphasis of this study is the measurement of environmental externalities especially, air pollution and road accidents. Also, was considered the freight transportation cost such as fictitious externality. These study focus on three agricultural commodities, soybeans, coffee bags and live cattle. About the externality of environmental pollution was used the method of avoided costs (preventive expenditures). Regarding the social costs of road accidents were adopted results of the report done by IPEA (2006). Considering the three externalities measured, the total annual social cost of externalities underlying the current fleet of trucks autonomous of the national agriculture is at least R$ 27.000 per truck per year, corresponding to approximately 15% of the price of a new non-truck polluter with embedded technology

Mensuração do custo social subjacente à atual frota autônoma de caminhões da agropecuária nacional - um estudo de caso: soja, café e boi em pé