CIRCUITS OF THE URBAN ECONOMY – THE FINE LINE BETWEEN THE UPPER AND THE LOWER: THE EMPIRICAL CASE OF THE POPULAR URUGUAY MARKET - RJCircuits of Urban Economy, Popular Market of Uruguaiana, Economy, Urban, Geography.The theory of Circuits of Urban Economy is an of the main bases to understand the organization and economic structure of the urban environment, this concept as the main theoretical contribution of the present research. The urban economy is in a constant process of metamorphosis, following and influencing the characteristics of the moment and studying the environment. In Geography, the main urban environment goes beyond the economy and beyond theory, and thus, having the practice of phenomena as one of the main phenomena to develop this work. One of the main popular commerce establishments in the state, the Mercado Popular da Uruguaiana is a living and constant example of relationships, whether with people, the environment, capital and even the product. It is then necessary to associate and identify how the circuits of the urban economy and the camelódromo are related, through the theory of geographic science and the practical aspects of the contemporary environment.