The Arapiraca and Itabaiana cities, which are localized in the agreste from Alagoas and Sergipe, have a single dynamic highlighting itself owing to its regional centers in the Brazilian northeast town. The reason of such prominence is, above all, the street market, which gained relevance and it was responsible for commerce expansion and onset of several industrial initiatives. Moreover, it has contributed to the creation of new and range services and subsequent growth of their economies.In the case of Arapiraca the street market gains momentum with the development of the tobacco culture, while in Itabaiana the truck is directly responsible for the expansion of the street market. In this perspective, this study aims to analyze this genesis based in the free market role, combined with other events such as agricultural activities, considering the strength and spirit of initiative of the agreste citizens. Thus, it was essential to revisit the events that marked each period in the economic history of their respective states and influence in Arapiraca and Itabaiana economy at the same time it tried to connect the free market to the proposal of the two circuits of the urban economy (SANTOS,  2008). The theoretic-methodological referential use centered on the comprehension of variables like street market, economic and regional development, industrialization, natural and market economy, dynamism and centrality, from the ideas of authors such as Andrade (1979 and 1998), Braudel ( 1998), Bishop (2013), Carvalho (2012), Carvalho and Costa (2012), Guedes (1999), Lima (1965), Mamigonian (1965, 2009), Melo (1980), Rangel (1959, 2012c), Santos ( 2010), Santos and Silveira (2010) among others, proved to be essential on this investigation. Treading on this path, the concretion of research took place through fieldwork, which included questionnaires with merchants, consumers, truckers and businessmen analyzed the two cities. Thus, there has been development centered on local initiatives, with the appearance of small business originated from the lower circuit where local labor, equity and techniques not quite as modern, were the basis for the success of initiatives in several fields. Therefore, reflecting decisively on economic development of these two important regional centers in the country towns of the Brazilian Northeast.
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