The aim of this paper is to investigate intraregional inequalities in the brazilian Northeast region, from the differentiation of its productive structure. For this, the analysis applies space decomposition inspired by Feldman et al. (1987) and adapted according to the proposed of Dietzenbacher et al. (2000) and Jackson and Dzikowski (2002). The database is the Input-Output Matrix of Northeast and States (GUILHOTO et al., 2010), base year 2004, with 111 economic sectors and 10 regions (9 northeast states and rest of Brazil). The main results showed that the final demand plays an important role in determining the product´s difference of the activities related to the Services segment, especially in the states of Bahia, Ceará and Pernambuco. On the other hand, the final demand is not responsible for differences in product among some agriculture and livestock activities, sectors linked to the food industry and the production of tobacco. Moreover, the final demand does not explain the differences in the production of virtually all activities of the states of Alagoas, Maranhão, Paraíba, Piauí, Sergipe and Rio Grande do Norte.

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