Thesis (Ph. D.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 19, 2007) Vita. Includes bibliographical references.

Orientador: Sebastião Neto Ribeiro Guedes / Coorientador: Tatiana Massaroli de Melo / Banca: André Luiz Correa / Banca: Alexandre Nunes de Almeida / Resumo: A agricultura sempre foi vista como um setor que opera sob normas, leis e teorias diferentes do setor industrial, mas essa diferença foi diminuindo à medida que esses dois setores passaram a se relacionar de forma mais direta acarretando no surgimento do complexo agroindustrial (CAI). Teorias sobre a formação de preço determinam que quanto maior a concentração do setor industrial, maior é o poder que esse setor tem de influenciar o preço, por meio das margens e dos custos. No caso brasileiro há evidências de indústrias mais concentradas, como a agroindústria de laranja, e indústrias menos concentradas, como a agroindústria do leite. Diante deste fato, surge o objetivo principal deste estudo: verificar empiricamente se os setores mais concentrados possuem maior influência no preço. Para alcançar esse objetivo, o presente trabalho contará com uma metodologia baseada no conceito de volatilidade das séries de preços, e com a utilização do filtro Hodrick-Prescott (HP) para separar a tendência de longo prazo da componente cíclica de curto prazo. A hipótese fundamental é de que um setor mais concentrado possui uma série de preço de curto prazo com menor volatilidade, devido a sua maior influência sobre o preço. Serão utilizadas séries de preços médios pagos ao produtor de laranja e do leite, do preço recebido pela agroindústria e dos valores de exportação, assim espera-se observar as possíveis diferenças nos dois casos / Abstract: Agriculture has always been seen as an sector that operates under rules, different laws and theories of the industrial sector, but this difference was decreasing as these two sectors began to relate more directly resulting in the emergence of the agroindustrial complex (CAI). Theories of price formation determine that the higher the concentration of industry, the greater the power that this sector has to influence the price, through the margins and costs. In Brazil there is evidence of more concentrated industries such as orange agribusiness, and less concentrated industries such as agribusiness milk. Given this fact, the aim of this study arises: empirically whether the most concentrated sectors have greater influence on price. To achieve this goal, this paper will include a methodology based on the concept of volatility of the price series, and using the Hodrick-Prescott (HP) filter to separate the long-term trend of short-term cyclical component. The fundamental assumption is that a more concentrated sector has a short-term price series with lower volatility, due to their greater influence on the price. Will be used series of average prices paid to orange producer and the milk price received by agribusiness and export values, so it is expected to observe the possible differences in the two cases / Mestre

Orientador: Walter Belik / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Economia / Made available in DSpace on 2018-08-04T16:04:33Z (GMT). No. of bitstreams: 1 Dias_DarleneRamos_D.pdf: 534011 bytes, checksum: 669a649b344b7b359605ba9fb77812b5 (MD5) Previous issue date: 2004 / Resumo: O trabalho analisa as características da coordenação contratual vigentes na agroindústria de tomate no Estado de Goiás sob o ponto de vista dos produtores de tomate. A re-localização do processamento e produção de tomate na região do cerrado foi fruto do processo de reestruturação industrial do setor em busca de regiões mais produtivas e de uma produção de melhor qualidade. A escassez de crédito público para o financiamento agrícola e o fracasso de algumas fontes alternativas de crédito privadas facilitou a consolidação do uso de contratos na agroindústria de tomate nessa região. Tais contratos são mais rígidos, o que restringe a organização de produtores, reduzindo o seu poder de barganha. Embora insatisfeitos com as relações contratuais, os produtores continuam na relação em virtude da rentabilidade da cultura de tomate / Abstract: It is analyzed the characteristics of the contractual coordination existing in the tomato agroindustry in the State of Goiás, Brazil, from the perspective of the producers. The re-location of the processing and production of the brazilian tomato to the Cerrado region resulted from the process of industrial restructuring of the sector in search of more productive regions and of higher-quality production. The scarcity, low-supply of government credit for agricultural financing and the failure of alternative sources of private credit made it easier the consolidation of the use of contracts in the tomate agroindustry in the Cerrado region. These contracts are more rigid, thus constraining the organization of the producers and reducing their bargaining power. While unsatisfied with these contractual relationships, most producers keep engaged on them, basically due to the profitability associated with the tomato production / Doutorado / Desenvolvimento Economico, Espaço e Meio Ambiente / Doutor em Economia Aplicada

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This thesis challenges accounts of individual choice and responsibility where food consumption is concerned, beginning with a critique of government policies to address the health effects of over-consumption of food. Whilst research from psychology and economics has acknowledged the role of habit and automaticity in some behaviours, including eating, the resulting theory of behavioural economics and its operationalisation as ‘nudge' theory does not directly address class differences. I argue that sociological analysis can do so, and discuss the trajectory of social class in social theory in recent decades, bringing together the insights of several theorists to challenge both Giddens's concept of reflexivity and postmodern notions of consumerism as an equalising force. I demonstrate that social theory can provide a solid underpinning to behavioural economics, and at the same time show the weakness of its policy applications to healthy eating. Given the relative inattention to the structures that shape dietary ‘choices', in comparison to the study of behaviour, this thesis examines the nature of the food supply and traces how the food industry develops, markets and sites food, and the ways in which it engages, often interactively, with a highly segmented society. The production and targeted supply of processed foods of varying quality contributes to problematic food consumption, particularly among those of lower social status. This phenomenon is further evidenced by an epidemiological review outlining the food-health-class link. Subsequently, I conduct the first sociological analysis of food industry texts (representing food science, product development and marketing), revealing how actors within these disciplines articulate their role, function and concerns regarding current practice. A critique of marketing emerges from both practitioners and marketing academics, and I apply this and an expanded sociological critique to the role of the food supply in diet-related ill health, in which a social gradient is strongly apparent.

"May 2003" / Bibliography: leaves 161-180. / x, 180 leaves : ill., map ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This study analyses driving forces, determinants and implications of emerging contractual arrangements in the Chinese agri-food system based on the transaction cost approach. / Thesis (Ph.D.)--University of Adelaide, School of Economics, 2003

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