Incorporating Nutritional Information to the GTAP 10 Data Base

In this paper, we develop an approach towards incorporation of nutritional information to the GTAP 10 Data Base. We rely on the FAO food balance sheets data and nutritive factors to estimate nutritional content of primary commodities and derived commodities represented in primary equivalent within food balance sheets. Calories, fats, proteins and carbohydrates are estimated and reported. We further identify use categories that account for food, feed, seed, losses and other uses. In terms of food supply, we identify GTAP primary commodity sectors, food processing sectors and service sectors that supply food. To redistribute nutritional data by GTAP sectors, we construct the Leontief inverse, operating only over those sectors (and uses) that supply food. Trade in both primary and processed commodities is taken into account. We further verify our estimates of food supplied by service sectors with available statistics by countries. Developed approach is applied to all four GTAP 10 reference years and could be replicated for each simulated year in the context of dynamic policy runs.