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With a wide range of implications for welfare, food security, land use, trade and the environment, nutrition-related policies pose complex questions that should be assessed using an approach that properly accounts for all the involved interactions. Widely used partial equilibrium models fail to properly account for the post-farmgate food value chains. At the same time, most of the available integrated assessment and computable general equilibrium models have some major limitations in terms of the consistent representation of nutritional data flows. In this paper, we address some of the limitations identified in the literature and develop an approach for incorporating nutritional accounts into the Global Trade Analysis Project (GTAP) Data Base, tracing quantities of food, calories, fats, proteins and carbohydrates along the value chains. We further showcase how the developed nutritional database can be linked to the standard GTAP model. A sample application is developed in the paper to provide an assessment of the impact of import tariff elimination on nutritional flows.Â
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