Análise de volatilidade, integração de preços e previsibilidade para o mercado brasileiro de camarão

The present paper has the purpose of investigate the dynamics of the volatility structure in the shrimp prices in the Brazilian fish market. Therefore, a description of the initial aspects of the shrimp price series was made. From this information, statistics tests were made and selected univariate models to be price predictors. Then, it was verified the existence of relationship of long-term equilibrium between the Brazilian and American imported shrimp and if, confirmed the relationship, whether or not there is a causal link between these assets, considering that the two countries had presented trade relations over the years. It is presented as an exploratory research of applied nature with quantitative approach. The database was collected through direct contact with the Companhia de Entrepostos e Armazéns Gerais de São Paulo (CEAGESP) and on the official website of American import, National Marine Fisheries Service - National Oceanic and Atmospheric Administration (NMFS- NOAA). The results showed that the great variability in the active price is directly related with the gain and loss of the market agents. The price series presents a strong seasonal and biannual effect. The average structure of price of shrimp in the last 12 years was R$ 11.58 and external factors besides the production and marketing (U.S. antidumping, floods and pathologies) strongly affected the prices. Among the tested models for predicting prices of shrimp, four were selected, which through the prediction methodologies of one step forward of horizon 12, proved to be statistically more robust. It was found that there is weak evidence of long-term equilibrium between the Brazilian and American shrimp, where equivalently, was not found a causal link between them. We concluded that the dynamic pricing of commodity shrimp is strongly influenced by external productive factors and that these phenomena cause seasonal effects in the prices. There is no relationship of long-term stability between the Brazilian and American shrimp prices, but it is known that Brazil imports USA production inputs, which somehow shows some dependence productive. To the market agents, the risk of interferences of the external prices cointegrated to Brazilian is practically inexistent. Through statistical modeling is possible to minimize the risk and uncertainty embedded in the fish market, thus, the sales and marketing strategies for the Brazilian shrimp can be consolidated and widespread

Reutilização de imóveis de interesse patrimonial, voltados para a ahabitação: um estudo de caso na Ribeira-Natal/RN

This work analyzes the reutilization of real estate of patrimonial interest, come back toward habitation. One understands as real estate of patrimonial interest the old ones that present relevant architectural typologies that must be preserved; some buildings that represent characteristic architectural styles of a determined period; some valued real estates for the history of the city (historical, memory and image signification that has of certain places) and buildings with exceptional artistic elements. In short, real estate of patrimonial interest. The place or site to be studied will be the neighborhood of the Ribeira, because is an area that protects a bigger interest for the historic patrimony of the city. The habitation use was thought as a booster element of revitalization processes of degradable historic site, contributing to the preservation of artistic, architectural and historic patrimony, and thus to stimulate the accomplishment of the re-qualification of the neighborhood of the Ribeira. It is intended with the present study to examine alternatives to make possible habitation re (uses) in the historical quarter of the Ribeira in old constructions of patrimonial value

Uso e disponibilidade da vegetação lenhosa em comunidades rurais no Rio Grande do Norte

The aim of this study was to test the Ecological Apparency Hypothesis comparing two rural communities in João Câmara (RN) and Remigio (PB), in the Northeast of Brazil. This hypothesis assumes that plants are perceived, known and used by human populations according to their local availability. The most used species would be the ones that are more available in the forest (apparent), and apparently suffer greater pressure of use. Communities were consulted through semi-structured interviews. In Remigio 42 people were interviewed, and 50 in João Câmara. The importance of each species was evaluated considering the distinction between citations from current and potential uses. The ethnobotanical information was associated with phytosociological parameters collected by the point-centered quarter method in forested areas, where 50 transects were distributed in each community, and 4,000 individuals sampled in total. Based on the interviews, 58 useful species were recorded, 42 genera and18 families. In the phytosociological study 30 species, 22 genera and 12 families in João Câmara, In Remígio were identified 34 species, 22 genera and nine families.The species were grouped into 11 categories of use. The ecological appearance was confirmed only in the João Câmara, which best explained the relationship between local availability and use of timber resources. Positive correlations were observed also between the technology category VUpotential and dominance. The point-centered quarter was efficient to test appearance, however, further studies through the point-centered quarter method are recommended

Desvendando o padrão alimentar de famílias rurais: o que tem no prato?

That work looked for to point out the different conceptions on the family agriculture and the established self-consumption practices inside the unit of production. Hypothesis: due to the conditions, more and more restricted of producing for the self-consumption, the rural families are more favorable present her situation of alimentary insecurity as severe as for the urban families, unlike what he/she defends. The research was accomplished in three states of the Northeast: Paraíba; Rio Grande do Norte and Sergipe. The results revealed that among the main factors that expose those families to situations of constant alimentary vulnerability are had: the low quality of the alimentary consumption in what concerns the readiness, to the diversification and mainly, to the accessibility. The analyses can be to subsidize a reflection concerning the alimentary pattern of families rural front to the precepts of Food and Nutrition Security (FNS) politics

O parto dos caminhos: Formação dos Sindicatos Rurais no Rio Grande do Norte (1960 - 1964)

The present work treats the movements dedicated to reinvidication per land and social rights for the field works, among 1960 and 1964. Trying to understand this question in the Rio Grande do Norte it is necessary to consider the connection between the catholic church and the rural syndicates besides the influence of the Brazilian communist party, and still other social movements and the state. The structures politics local, national and international, had considerable importance to the organization rural potiguares workers. The rural potiguares syndicate appear in 1961 - after a hard organization work starting of the Service of Rural Assistance - and expand itself through state until the middle of 1962. Soon the first big conflicts an important manifestation are perceive, indirectly referring to a increasing movement's performance. The Favoring Progresses chains co quested a biggest influence in the politics destiny of the Rio Grande do Norte, in front of integration among syndicates, educational projects, and favoring progress's politics. But the military coup hired that the hope overflow the field

Associativismo nos municípios rurais: uma alternativa de desenvolvimento local em Portalegre/RN

This work aims to study the associations as mediating the process of social change and its importance for local development. The hypothesis is that associations, but bring dynamism to the smaller cities and improve the living conditions of their members, relegated to the background social sustainability, understood this as a permanent exercise of mobilization and participation in community life. The assumptions of the study are that the practice group has influenced the processes of local development in Brazilian rural municipalities through the mediation of government programs and projects aimed at combating rural poverty require social organization for their achievement. The concept of local development in this work was rescued from studies of political economy and sociology. But the concepts of collective action and partnerships advêem studies of political participation and social development of the theory of alternative or solidarity. The party consisted of an empirical case study conducted with four associations of farmers in the municipality of Portalegre-RN. Why choose qualitative study was used the technique of semi-structured interviews with the chairmen I members of associations and other actors considered essential to understanding the study (religious leaders, local political power and chairman of the union of rural workers), a total of 20 interviews, in addition to the observations of field and documentary research in records of the.ir own organizations. The survey results show that the performance of groups of farmers are key components and determinants for the production I marketing of agricultural products and for boosting the economy, as well as security for minimum levels of citizenship. Yet we are still in a space purpose of social change, which comes to confirm the initial hypothesis of this work

Jovens assentados, jovens estudantes, jovens professores: juventude em assentamentos rurais do RN

This work discusses how schooling processes can contribute to young settlers resignify their relationship with rural settlements where they live. We want to understand youngster s place, his relationship with local community, social movements and their acting, after formation, at their localities. Thereunto, we tracked a group of students of Land Teaching Course, developed through a partnership between UFRN, INCRA and MST in the years 2004 to 2007. We observed their trajectories, the learnings provided by the Course and how Formation Centre experiences contributed to their agent conditions, offering them choice opportunities on different fields. We understand that formation process enabled them to have individual gains, widening their range of choices, while have contributed to development of areas in which they live, from their collective action. Social practices experienced in collective environment, combined with education access, provided a set of knowledge. These learnings have enabled youngsters to assume positions in participation areas which have been opened at school, while teachers, at social movements and at associations that manage the settlements

A corretagem de imóveis no Rio Grande do Norte: das práticas históricas à emergência como segmento integrante da fração imobiliária do capital

This research proposed to question the development of what was defined as historical practices (commercial, social and political institutions), of the economic activity of the real estate brokerage in the Rio Grande do Norte from the progressive institutionalization of economic agents - individuals (realtors) and legal (real estate) - based on two main approaches: a) the development of economic activity as an integral segment of a fraction of capital (POULANTZAs, 1985; LESSA, 1981). This work set out from a socio-historical approach of the historical practices development the of real estate brokerage in Brazil started in the Southeast, especially in the cities of Rio de Janeiro and São Paulo as a result of the "expansion of capitalist relations by the housing sector" (RIBEIRO , 1996). especially the real estate capital ; b) the historical development of relations between labor and capital within the activity, in other words, the development of the relationship between realtors and Real Estate in relation to "group of interests" and their "collective actions" (OFFE, 1984). These historical practices are defined in this research as: 1) mercantile practices, times when there was no distinction between the activity of real estate brokerage and other forms of mercantile capital; 2) social practices, which began in the 1930s, when agents of real estate are to be distinguished from each other within the activity through Taylorist division of labor between workers realtors and developers of real estate; 3) political and institutional practices, initiated in 1962, characterized by State action, in the individualization and distinction of the agents of real estate brokerage as socioprofessional category regulated throughout Brazil by Law 4.116/62 and 6.530/78. The results achieved by the present study showed that in Rio Grande do Norte, due to the specifics as to the peripheral processes of urbanization of the constitution of the land market, as well as the process of conservative modernization of the oligarchic State from the 1960s (CLEMENTINE, 1995; FERREIRA, 1996, 2010, TRINDADE, 2004), the State was led to the development of a late manifestation of the historical practices of real estate brokerage. In other words, it was a process in which historical practices, in particular social practices, not fully developed, mitigating, thus the perception of realtors from his position in the process of exploitation of labor by the Real Estate. And, as a result, of their collective interests front of them.

IMPASSES, DESAFIOS E BROTOS: O papel da Assessoria na Transição Agroecológica em Assentamentos Rurais

This thesis is the result of a study on the role of technical assistance in the process of agroecological transition, which are under way in rural settlements in the territory of Mato Grande, Rio Grande do Norte. Your goal is, from the Technical Assistance Program, Social and Environmental (ATES), launched in 2004 by INCRA understand to what extent this action accomplished their goal of doing a job with a focus on agroecology. To this end, we chose to work with a qualitative methodology, through interviews with settlers, advisors and representatives of INCRA. They also contributed to developing this thesis, the direct observations, which offer visits to settlements and advisory bodies in the Rede Pardal, apart from participation in meetings and activities in which they were being discussed the issues of advice, agroecology and rural settlements. The thesis is divided into five chapters, plus introduction and conclusion. The first three refer to a theoretical analysis and historical about the process of land reform, and as a result the establishment of rural settlements, the importance of peasant tradition for the design of agro-ecological design and the relationship between agricultural models and proposals advice to the countryside. In two subsequent chapters, there was a panoramic picture of the territory of Mato Grande, settlements and groups that make up this research, for then analyze the performance of advisory services in these settlements, with the parameter, agroecology. It was found that the advice in this perspective, suffers a series of constraints, causing a gap between the ideal proposed in the manual and the actual practiced in their daily lives. Still, it is concluded that the ATES has contributed to innovations in productive groups who are experiencing agroecological processes, which can be regarded as shoots for the transition to a new dynamic of development.

Capital Social e Desenvolvimento Rural: acesso, uso e gestão da água nos Territórios Rurais do Sertão do São Francisco

This study aimed to contribute to the discussion of social capital, seeking to relate that to the access, use and water resources management in the Sao Francisco Vale, specifically in rural areas of the wilderness of San Francisco situated in the State of Bahia and Pernambuco. As, stimulate action possibilities for individuals (family rural) apart by a patrimony public so precious that is water. Besides a theoretical discussion of social capital (networks, trust, participation) and rural development. We applied 387 questionnaires to farmers and some interviews with actors social of territorial forum and committee of the São Francisco basin where it was possible to correlate our variables in order to confirm our hypothesis: social capital is a key element to ensure access, use and management of water for rural families living in irrigated and rainfed areas

Evangelizar e politizar :O sentido da atuação da Igreja Católica com os sindicatos dos trabalhadores rurais no Seridó potiguar (1964-1979)

The purpose of this work is to analyze the influence of the Catholic Church on rural worker s union in the Seridó potiguar region between 1964 to 1979. To the work developed by the Church is connected the beginning of worker s union in the Seridó region. In this way, this research tries to understand what is also the politic direction of the labor s union by means of the Cathólic Church that througt a process of creating Leagues have been looking for reinforcing and protecting catholicism as a way of maintaining its believers and distancing them from others movements such as Peasant League and the influence of Brazilian Communist Party. We use as sources oral narratives and newspaper A Folha , wich was published by the Parish Church of Caicó (RN) between 1954 to 1967. Some wrintten documents produced by worker s union from the Seridó region were also used

A revenda de combustível e os limites constitucionais para a sua regulação: uma análise aplicada aos aspectos concorrênciais e ao controle de preços

The gas retail represents the end of a section of the oil and natural gas derivative chain, for it is at this stage where the commercialization of those merchandises takes place towards the costumers. This process involves an enormous amount of economic agents, which reflects on an activity of great influence on the citizen's everyday. By the time of the gas retail price liberalization, in 2002, there were great expectations towards that measure, for the insertion of that segment in a competitive market was likely to create a decrease in prices. As there was not a drastic drop off in cost, the question was no longer the price itself, but, predominantly, the conduct taken by the economic agents that operate the market. Not in vain, the segment introduces a greater number of different procedures combined with the organs that compose the Brazilian System of Competition Protection. What is understood, however, is that many of these complaints are made in a lightly way, without a proper analysis of the market and its practices, that being why, in this paper, evidences the causes of these complaints and explained what, in fact, occurs in this market. Also, the organs that protect the free initiative in the sector use different methods to assess anticompetitive practices, which are counterproductive on the combat of anticompetitive practice, that being why the present paper analyzes the used methods on a critic perspective, choosing one which is believed to be the most adequate. The present work also tries to present the gas retail prices on a constitutional, free competition, free initiative and consumers defense perspective, analyzing the competition s aspects on the gas market; the shaping of the gas prices; the market boundaries; the anti-competitive practices under the gas market; and analyze the possibility, according to the defined economic standards in the constitutional text of existing a greater control or gas price indexing and/or regulation which limits the distributors and resellers profit on gas. Still, in consequence of this analysis, a study on Natal s market behavior will be developed in its competitive feature. That being said, moreover being a theoretical-descriptive study, data and statistics gathered is used, which will lead, willing to grasp an experiential study on a few aspects of the Potiguar gas retail market

Instituições, agricultura familiar e crédito rural: avaliação de resultados do Pronaf B nos territórios rurais do Rio Grande do Norte

Broadly anchored on Institutionalist literature this dissertation seeks to answer: Why rural credit granted to farming families in Rio Grande do Norte, Pronaf group B, has shown positive results in some territories while in others the same results are insatisfactory? Considering formal rules are the same, then why such results are so distinguished? This research supports the fact that these results are a direct consequence of the quality of institutions defined as longstanding social rules established and built in social interactions. For institutions one understands; organizational structures, formal and non-formal rules, social trust, thinking behaviors and its evolution as well as routines. Using Pronaf Rural Credit as a background this study measures and compares results obtained in the rural areas of Seridó, Sertão do Apodi, Mato Grande, Assú-Mossoró, Trairi, Potengi and Alto Oeste. The dimensions of measurement considered were: economics, social and guarantee of transparency. The study considers a sample of 402 Group B farming families. It also elaborates a socio-economic profile of these families in the considered areas and underlines the main causes for defaulted loans, difficulties to improve family income and results of access to Pronaf B credit line, as well as it proposes solutions to surpass obstacles to improve the efficiency of this credit line

Mudanças no rural nordestino: uma análise dos determinantes da pluriatividade nas famílias rurais nordestinas, no ano de 2011

This study aims to the evaluate the determinants for rural households northeastern be pluriactive, in 2011. For this, at first, we conducted a review of national and international literature in order to get beyond the theoretical part which refers to the study of pluriactivity identify possible determinants of the phenomenon. In this rescue, it was the observed determinants could be macroeconomic in nature and / or microeconomics. Therefore, it became necessary to describe the characteristics of the region under study, the Northeast. In order to identify the determinants were two estimated Probit models, one based on the literature review and the second with a variable characteristic of the Northeast, the transfers. For this, we used the PNAD in 2011. The results indicate both the microeconomic determinants are : gender, race, age, years of education, hours worked, number of family members, per capita income, transfer the macroeconomic in nature: living conditions (water, energy, sanitation ), housing location. In addition to identifying the determinants, the Econometric model allows to know the probability of each variable on the dependent variable, which stood out: the transfer variable, gender, per capita income, number of family members, housing conditions and housing location. Therefore, it is concluded that it is the set of determinants (macro and micro) allow rural families become northeastern pluriactive. However, one can not fail to consider may also have other determinants were not captured due to the availability of data, which may be indications for future studies. In summary, the pluriactivity in the Brazilian Northeast is a phenomenon distinct from found in Europe and southern Brazil. It is a pluriactivity survival that is part of the strategies of rural households in the Northeast to ensure their social reproduction amid the poverty of the region

Trajetória dos assentamentos rurais financiados pelo crédito fundiário no estado do Rio Grande do Norte: uma análise da experiência do assentamento da fazenda Paz no município de Maxaranguape/RN

The market-assisted land reform (RAAM) has been constituted as an alternative of agrarian reform funded by the Programa Nacional do Crédito Fundiário (PNCF). It is a policy of acquisition, distribution and use of Earth ideologically disseminated and funded by the World Bank in the context of productive insertion of landless workers. Accordingly, this study seeks to analyze the trajectory of rural settlements financed by this policy, seeking to understand what factors promote or limit the process of rural development of those settlements. To do so, take as a reference case study of the Assentamento da Fazenda Paz, in the municipality of Maxaranguape in the State of Rio Grande do Norte. From the methodological point of view, bibliographical and documentary research were used, in addition to visits to the settlement and semi-structured interviews with the settlers, trade union leaders, consultants and technicians linked to the project. Assuming the reports of respondents, initially constructs the hypothesis that informal and formal institutions present in the Assentamento da Fazenda Paz were unable to effectively coordinate the actions of the agents. The results obtained showed the existence of a very complex undertaking, with a total area of 607 hectares and 80 families settled, endowed with good quality water and irrigation infrastructure, with assets of approximately R$ 5 million reais. Experience experienced by the settlers understood the development of complex systems of production and marketing of fruits and vegetables, with an emphasis on the cultivation of papaya in an area of 45 hectares based on modern irrigation system and extensive use of technology. Collective management of production, marketing, revenue and costs stood out as a major challenge for the settlers and their representative organisations, i.e. the Community Association and the cooperative. From this observation it was possible to identify two moments on the trajectory of the project: the first, between 2007-2011, considered by respondents as successful, in which the integration of public policies and abundant input of revenue from the commercialization of the fruits da Paz, mainly through the sale of papaya and pineapple in national and international markets, allowed an average remuneration of R$ 800.00 reais to R$ 1,000 reais seated/monthIn addition to the production of vegetables and other types of products for sale and consumption; the second, from 2012, characterized as a failure, due to the discontinuity of the cultivation, production and marketing of fruits based on the collective bargaining model deployed. Important factors explain the discontinuity of the project, including the model of agriculture implemented, difficulties related to the management of production, marketing and finance the venture, in addition to the breach of trust between the Board of the cooperative and the associates and the distancing of the governmental organizations more directly responsible for the project. It is therefore concluded that we must to rethink rural development as a multidimensional phenomenon, requiring a broad engagement between State and society under the foundations of a territorial development contract