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Abstract
The hierarchical organization of chains in the Yucatán Peninsula, México, was performed based on the methodology proposed by the International Service for National Agricultural Research (ISNAR), taking as an axis for analysis the dimensions of socioeconomic importance and competitiveness. Thirty-one chains were selected, from which 67.7 % were agricultural (maize, sugar cane, avocado, jalapeño pepper, orange, habanero pepper, lime, soy, tomato, sorghum, papaya, coconut, bean, squash, rice, mamey, mango, cashew, sapote, henequen and African palm), 22.6 % livestock (poultry, meat and eggs, pork and sheep meat, beef and milk), and 9.7 % forestry (common tropical, fine and non-timber woods). The results placed the maize and poultry chains as those of sustenance for their percentage value of 59.6% and 57.7%, respectively. The total score of the maize chain was 97.4 % and poultry 92.1 %, placing them in the first and second place of importance followed by the sustenance chains, such as: sugar cane, eggs, and pork meat with 77.7%, 73.5%, and 73.4% points each.