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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Análise da teoria da estocagem sobre a base dos contratos futuros de soja no Brasil / Analysis of theory of storage on the \"basis\" of soybean futures contracts in Brazil.

Gabriel Agnesini da Silveira 28 November 2017 (has links)
O presente estudo teve como objetivo avaliar o impacto das variáveis da \"Teoria da Estocagem\", como custo de oportunidade e estoque, sobre a \"base\" dos contratos futuros de soja negociados na BM&FBOVESPA, para um período de cinco anos e com dados diários, de outubro de 2013 a março de 2017. Foi proposta uma análise semelhante à de Fama e French (1987) a qual verificou o impacto dos custos de oportunidade do capital e de uma proxy para o estoque de soja, visando capturar os custos de estocagem e o benefício de conveniência, derivados da teoria da estocagem. Verificou-se que o custo de oportunidade dos agentes de mercado impacta positivamente a base, da mesma forma, o estoque também impacta de forma positiva a base. Os resultados encontrados estão em conformidade com a teoria de estocagem proposta por Working (1949). Assim, a principal contribuição do trabalho é fornecer à literatura evidências empíricas que sustentem o comportamento da base de soja no Brasil / The study aimed to evaluate the impact of the \"Theory of Storage\" variables based on the soybean futures contracts traded on BM&FBOVESPA for a period of five years with daily data, from October 2013 to March 2017. An analysis similar to that of Fama and French (1987) was proposed, which verified the impact of the opportunity costs of capital and a proxy for the soybean stock, aiming to capture the storage costs and the benefit of convenience, derived from the theory of storage. It was verified that the opportunity cost of market agents has a positive impact on the basis, in the same way, the stock also has a positive impact on the basis. The results found are in accordance with the \"Theory of Storage\" proposed by Working (1949). Thus, the main contribution of the work is to provide the literature with empirical evidence to support the behavior of the soybean basis in Brazil
42

Modelo de formação de preços de commodities agrícolas aplicado ao mercado de açúcar e álcool / Agricultural commodity pricing model applied to the sugar and ethanol markets

Pereira, Leonel Molero 14 May 2009 (has links)
O problema estudado nesta tese foi a formação de preços de commodities agrícolas relacionadas com a produção de bioenergia. A possibilidade de substiuição de combustíveis fósseis, derivados do petróleo, por alternativas renováveis, como o etanol proveniente da cana-de-açúcar, inseriu um novo contexto no mercado de commodities. O objetivo principal desta tese foi propor um modelo de formação de preços que levasse em consideração o conceito de commodities agrícolas como componentes da matriz energética e aplicá-lo ao mercado brasileiro de açúcar e álcool. Para a especificação do modelo, foram elaboradas premissas que têm base na interdependência de preços com o petróleo, na Teoria de Estocagem, na sazonalidade das safras e na volatilidade do mercado. A volatilidade foi considerada no estudo porque, em períodos de turbulência econômica, os investidores buscam o mercado de commodities para proteger o valor real do capital. Para elaborar e testar o modelo, a pesquisa foi dividida em quatro partes interrelacionadas. A primeira consistiu na análise de outros modelos da literatura e dos processos estocásticos descritos pelas variáveis que compõem os preços das commodities. A segunda parte consistiu na elaboração das premissas, dispostas na forma de hipóteses, que foram testadas com dados do mercado futuro de açúcar e álcool da BM&FBOVESPA e com preços do mercado agrícola divulgados pelo CEPEA. A amostra analisada compreendeu o período de 2 de janeiro de 2002 a 30 de junho de 2008. Nesta etapa foram utilizados, entre outros métodos, testes estatísticos de significância de coeficientes de regressões multivaridadas pelo Método dos Mínimos Quadrados. Os resultados dos testes indicaram que o açúcar Granger causa os preços do etanol, confirmaram a presença de backwardation forte nas séries de preços, confirmaram também que os preços do petróleo antecipam informações sobre a tendência dos preços do açúcar, com defasagem de um mês. Além desses resultados, confirmou-se a presença de sazonalidade e, verificou-se, de forma não conclusiva, uma relação positiva entre a volatilidade dos mercados e os preços do açúcar. Na terceira parte da pesquisa, o modelo foi especificado em um sistema de três equações na forma de espaço de estado, cujos parâmetros foram estimados por meio do filtro de Kalman. Na quarta e última parte da pesquisa, foram viii geradas séries de previsão n passos à frente utilizando os parâmetros estimados e os resultados confrontados com os preços observados do açúcar no mercado à vista. Medidas de erros de previsão foram calculadas e comparadas com as de um outro modelo na literatura, adequado ao mercado de brasileiro açúcar o modelo de dois fatores. Verificou-se que o modelo proposto é estatisticamente superior, em termos de previsão, ao modelo de dois fatores, no nível de 1% de significância. Verificou-se também que, quanto maior o horizonte de previsão, maior é o ganho de informação relativo do modelo proposto. A redução percentual de erros foi superior a 10%, quando analisada a previsão de três meses à frente. Portanto, foi possível concluir que o modelo, que incorpora a interdependência do petróleo na formação de preços de commodities relacionadas à produção de biocombustíveis, é melhor, em termos de previsão, do que um outro modelo sugerido na literatura que não leva essa premissa em consideração, quando aplicado ao mercado brasileiro de açúcar. Os resultados da pesquisa podem ter aplicação pragmática em Administração de Empresas do setor sucroalcooleiro e na formação de preços no mercado de derivativos de commodities agrícolas. / The problem addressed by this thesis is the formation of prices of agricultural commodities related to bioenergy production. The possibility of substituting renewable alternatives, such as ethanol derived from sugar cane, for fossil fuels derived from petroleum has brought a new dimension to commodity markets. The primary objective of this thesis is to propose a pricing model which takes into account the concept of agricultural commodities as components of the energy matrix and to apply it to the Brazilian sugar and ethanol markets. The bases of the premises used to build this model were oil-price interdependence, inventory theory, harvest seasonality, and market volatility. Volatility was considered in the study because, in times of economic turbulence, investors turn to the commodities market to protect the real value of their capital. Four interrelated research tasks were undertaken to develop and test the model. The first step consisted of a literature analysis of other models and the stochastic processes to which variables that influence commodity prices are subject. The second part consisted of the elaboration of presumptions in the form of hypotheses which were tested using data from the BM&FBOVEPSA sugar and ethanol futures markets and agricultural prices published by CEPEA, with the test period being from January 2, 2002, to June 30, 2008. This step employed, among other methods, tests of stastical significance with multivariate regressions using the method of least squares. The test results indicated that sugar Granger causes ethanol prices, that strong backwardation exists in the price series, and that petroleum prices are predictive of sugar price patterns, with a one-month lag. In addition, the results confirmed the influence of seasonality and pointed, albeit somewhat inconclusively, to a positive relationship between market volatility and sugar prices. In the third step of the study, a model was defined using a system of three equations in state space form with parameters estimated using Kalman filtering. The fourth and last stage of the research generated series projections n steps forward using the estimated parameters, and the results were compared to sugar prices observed in the market. Measures of predictive error were calculated and compared with those of another model cited in literature as applicable to the Brazilian sugar market the two-factor model. The proposed model proved itself to be statistically superior, in terms of predictiveness, to the two-factor model, at the level of 1% significance. Moreover, x its predictive superiority rose as the period of time analyzed increased. The error reduction in percentage terms was greater than 10% over a forward-looking period of three months. Therefore, it is possible to conclude, in the context of the Brazilian sugar market, that this model, which incorporates petroleum interdependence in the formation of prices of commodities related to biofuel production, is better, in terms of predictive power, than another model cited in literature that does not take this premise into consideration. The results of this research can be applied in the management of sugar-alcohol companies and in the formation of derivatives prices in the agricultural commodities market.
43

Agro-commodity global value chains and upgrading : the case of Malaysian palm oil

Tong, Yee Siong January 2018 (has links)
This dissertation consists of three closely related essays on upgrading in agro-commodity value chains, which is an important issue for many developing countries that produce and export commodities in mostly unprocessed form. The essays are based on fieldwork in Malaysia and focus on its palm oil, which is the world’s largest oils and fats product by production and export volumes. The first essay examines the suitability of vertical specialisation for participation and upgrading in agro-commodity value chains based on the case of Malaysian palm oil. It uses data from interviews, site visits, and industry and economic statistics to analyse upgrading at the sector and firm levels. The essay suggests that upgrading is prone to sectoral linkage development and vertical integration at local lead firms. The development is driven by production characteristics, sectoral dynamics, eco-historical settings that are unique to agro-commodity value chains, as well as firm motives seeking resources, markets, efficiency gains, and strategic assets. The second essay studies Malaysia’s industrial policy for its palm oil sector through three distinct stages of development. The findings show that resource-based industrialisation (RBI) requires selective state intervention targeting macroeconomic conditions, infrastructure, business climate, and human capital. The Malaysian experience also highlights the importance of local firms in driving RBI investments, contrary to the emphasis in the literature which either overplays the importance of foreign linkages or dismisses nationality of firms as a non-factor for industrialisation. The third essay investigates economic and social outcomes from upgrading in the Malaysian palm oil sector using gross value added data. It shows that economic upgrading can but does not automatically lead to social upgrading. The essay finds that economic upgrading in value chains improves income of groups of individuals at different rates depending on their position in the value chains. Skills and productivity performance provide only partial explanation for the uneven social outcomes; the differences in institutional arrangements and political representation accorded to the groups are likely to be important factors as well.
44

Measuring the volatility spill-over effects between Chicago Board of Trade and the South African maize market /Gert J. van Wyk.

Van Wyk, Gert Johannes January 2012 (has links)
It is widely believed among South African agricultural market participants that the United States' corn price, as represented by the Chicago Board of Trade-listed corn contract, is causal to the price of white and yellow maize traded on the South African Futures Exchange. Although a strong correlation exists between these markets, the corn contract is far from causal to the South African maize price, as indicated by Auret and Schmitt (2008). Similarly, South African market participants believe that volatility generated in the United States corn market spills over to the South African market. Given the perceived volatility spill-over from the corn market to the maize market, market participants might inadvertently include a higher volatility component in an option price in the South African maize market than is necessary. This study sought to quantify the amount of volatility spill-over to the South African white and yellow maize market from the United States corn contract. This task was accomplished by applying an Exponential Generalised Auto Regressive Conditional Heteroscedasticity model, within an aggregate shock framework, to the data. The findings indicated that the volatility spill-over from the United States corn market to the South African maize market is not statistically significant. This result suggests that volatility in the South African market is locally driven; hence, it should not be necessary for a South African listed option contract to carry an international volatility component in its price. It was also found that the returns data of the South African maize market is asymmetrically skewed, indicating that bad news will have a greater effect on the price of maize compared with good news. / Thesis (MCom (Risk Management))--North-West University, Potchefstroom Campus, 2013.
45

Measuring the volatility spill-over effects between Chicago Board of Trade and the South African maize market /Gert J. van Wyk.

Van Wyk, Gert Johannes January 2012 (has links)
It is widely believed among South African agricultural market participants that the United States' corn price, as represented by the Chicago Board of Trade-listed corn contract, is causal to the price of white and yellow maize traded on the South African Futures Exchange. Although a strong correlation exists between these markets, the corn contract is far from causal to the South African maize price, as indicated by Auret and Schmitt (2008). Similarly, South African market participants believe that volatility generated in the United States corn market spills over to the South African market. Given the perceived volatility spill-over from the corn market to the maize market, market participants might inadvertently include a higher volatility component in an option price in the South African maize market than is necessary. This study sought to quantify the amount of volatility spill-over to the South African white and yellow maize market from the United States corn contract. This task was accomplished by applying an Exponential Generalised Auto Regressive Conditional Heteroscedasticity model, within an aggregate shock framework, to the data. The findings indicated that the volatility spill-over from the United States corn market to the South African maize market is not statistically significant. This result suggests that volatility in the South African market is locally driven; hence, it should not be necessary for a South African listed option contract to carry an international volatility component in its price. It was also found that the returns data of the South African maize market is asymmetrically skewed, indicating that bad news will have a greater effect on the price of maize compared with good news. / Thesis (MCom (Risk Management))--North-West University, Potchefstroom Campus, 2013.
46

Modelo de formação de preços de commodities agrícolas aplicado ao mercado de açúcar e álcool / Agricultural commodity pricing model applied to the sugar and ethanol markets

Leonel Molero Pereira 14 May 2009 (has links)
O problema estudado nesta tese foi a formação de preços de commodities agrícolas relacionadas com a produção de bioenergia. A possibilidade de substiuição de combustíveis fósseis, derivados do petróleo, por alternativas renováveis, como o etanol proveniente da cana-de-açúcar, inseriu um novo contexto no mercado de commodities. O objetivo principal desta tese foi propor um modelo de formação de preços que levasse em consideração o conceito de commodities agrícolas como componentes da matriz energética e aplicá-lo ao mercado brasileiro de açúcar e álcool. Para a especificação do modelo, foram elaboradas premissas que têm base na interdependência de preços com o petróleo, na Teoria de Estocagem, na sazonalidade das safras e na volatilidade do mercado. A volatilidade foi considerada no estudo porque, em períodos de turbulência econômica, os investidores buscam o mercado de commodities para proteger o valor real do capital. Para elaborar e testar o modelo, a pesquisa foi dividida em quatro partes interrelacionadas. A primeira consistiu na análise de outros modelos da literatura e dos processos estocásticos descritos pelas variáveis que compõem os preços das commodities. A segunda parte consistiu na elaboração das premissas, dispostas na forma de hipóteses, que foram testadas com dados do mercado futuro de açúcar e álcool da BM&FBOVESPA e com preços do mercado agrícola divulgados pelo CEPEA. A amostra analisada compreendeu o período de 2 de janeiro de 2002 a 30 de junho de 2008. Nesta etapa foram utilizados, entre outros métodos, testes estatísticos de significância de coeficientes de regressões multivaridadas pelo Método dos Mínimos Quadrados. Os resultados dos testes indicaram que o açúcar Granger causa os preços do etanol, confirmaram a presença de backwardation forte nas séries de preços, confirmaram também que os preços do petróleo antecipam informações sobre a tendência dos preços do açúcar, com defasagem de um mês. Além desses resultados, confirmou-se a presença de sazonalidade e, verificou-se, de forma não conclusiva, uma relação positiva entre a volatilidade dos mercados e os preços do açúcar. Na terceira parte da pesquisa, o modelo foi especificado em um sistema de três equações na forma de espaço de estado, cujos parâmetros foram estimados por meio do filtro de Kalman. Na quarta e última parte da pesquisa, foram viii geradas séries de previsão n passos à frente utilizando os parâmetros estimados e os resultados confrontados com os preços observados do açúcar no mercado à vista. Medidas de erros de previsão foram calculadas e comparadas com as de um outro modelo na literatura, adequado ao mercado de brasileiro açúcar o modelo de dois fatores. Verificou-se que o modelo proposto é estatisticamente superior, em termos de previsão, ao modelo de dois fatores, no nível de 1% de significância. Verificou-se também que, quanto maior o horizonte de previsão, maior é o ganho de informação relativo do modelo proposto. A redução percentual de erros foi superior a 10%, quando analisada a previsão de três meses à frente. Portanto, foi possível concluir que o modelo, que incorpora a interdependência do petróleo na formação de preços de commodities relacionadas à produção de biocombustíveis, é melhor, em termos de previsão, do que um outro modelo sugerido na literatura que não leva essa premissa em consideração, quando aplicado ao mercado brasileiro de açúcar. Os resultados da pesquisa podem ter aplicação pragmática em Administração de Empresas do setor sucroalcooleiro e na formação de preços no mercado de derivativos de commodities agrícolas. / The problem addressed by this thesis is the formation of prices of agricultural commodities related to bioenergy production. The possibility of substituting renewable alternatives, such as ethanol derived from sugar cane, for fossil fuels derived from petroleum has brought a new dimension to commodity markets. The primary objective of this thesis is to propose a pricing model which takes into account the concept of agricultural commodities as components of the energy matrix and to apply it to the Brazilian sugar and ethanol markets. The bases of the premises used to build this model were oil-price interdependence, inventory theory, harvest seasonality, and market volatility. Volatility was considered in the study because, in times of economic turbulence, investors turn to the commodities market to protect the real value of their capital. Four interrelated research tasks were undertaken to develop and test the model. The first step consisted of a literature analysis of other models and the stochastic processes to which variables that influence commodity prices are subject. The second part consisted of the elaboration of presumptions in the form of hypotheses which were tested using data from the BM&FBOVEPSA sugar and ethanol futures markets and agricultural prices published by CEPEA, with the test period being from January 2, 2002, to June 30, 2008. This step employed, among other methods, tests of stastical significance with multivariate regressions using the method of least squares. The test results indicated that sugar Granger causes ethanol prices, that strong backwardation exists in the price series, and that petroleum prices are predictive of sugar price patterns, with a one-month lag. In addition, the results confirmed the influence of seasonality and pointed, albeit somewhat inconclusively, to a positive relationship between market volatility and sugar prices. In the third step of the study, a model was defined using a system of three equations in state space form with parameters estimated using Kalman filtering. The fourth and last stage of the research generated series projections n steps forward using the estimated parameters, and the results were compared to sugar prices observed in the market. Measures of predictive error were calculated and compared with those of another model cited in literature as applicable to the Brazilian sugar market the two-factor model. The proposed model proved itself to be statistically superior, in terms of predictiveness, to the two-factor model, at the level of 1% significance. Moreover, x its predictive superiority rose as the period of time analyzed increased. The error reduction in percentage terms was greater than 10% over a forward-looking period of three months. Therefore, it is possible to conclude, in the context of the Brazilian sugar market, that this model, which incorporates petroleum interdependence in the formation of prices of commodities related to biofuel production, is better, in terms of predictive power, than another model cited in literature that does not take this premise into consideration. The results of this research can be applied in the management of sugar-alcohol companies and in the formation of derivatives prices in the agricultural commodities market.
47

Leis de potências e correlações em séries temporais de preços de produtos agrícolas

SIQUEIRA JÚNIOR, Erinaldo Leite 10 August 2009 (has links)
Submitted by (ana.araujo@ufrpe.br) on 2016-07-05T15:38:42Z No. of bitstreams: 1 Erinaldo Leite Batista Almeida.pdf: 3620819 bytes, checksum: b2532ef7524f47d5417d01445fec797b (MD5) / Made available in DSpace on 2016-07-05T15:38:42Z (GMT). No. of bitstreams: 1 Erinaldo Leite Batista Almeida.pdf: 3620819 bytes, checksum: b2532ef7524f47d5417d01445fec797b (MD5) Previous issue date: 2009-08-10 / Financial markets are complex systems that contain large numbers of interacting units, including interactions among various units in the same market and interactions between units in different markets. Various methods of economics, statistics and econophysics have been developed to analyze financial temporal series (such as price returns, share volume, number of transactions), and serve to establish theoretical models for underlying stochastic processes. The availability of financial data on the internet and increasing computational power have enabled researchers to conduct a large number of empirical studies on financial markets. These studies have shown some universal properties: the risk function of price returns is scale invariant, with power-law behavior and similar value of exponent for different markets; the absolute values of returns (volatility) exhibit long-range power-law correlations. In this work, we use methods if econophysics to study the statistical properties of Brazilian financial markets. We analyze and compare scale properties of risk functions and correlations in temporal series of price returns of agricultural commodities and stocks of various companies traded at Bovespa. We analyze the daily prices of five commodities and twenty stocks traded in the period 2000-2008. For both commodities and stocks, the risk function of daily price returns shows powerlaw behavior with the exponent outside the Levy stable region. The values of exponents are higher for stocks than for commodities. We use Detrended Fluctuation Analysis (DFA) to study correlations in daily time series of absolute values of returns (volatility). This method was developed to quantify long range correlations in non-stationary temporal series.All analyzed series show persistent behavior, meaning that large (small) values are more likely to be followed with large (small) values. The value of the DFA exponent is higher for commodities than for stocks. We also use Detrended Cross Correlation Analysis (DCCA) to study cross-correlations between two series. The values of DCCA exponents are above 0.5 for all series, indicating the existence of long range cross-correlations. This means that each stock or commodity has long memory of its own previous values and of previous values of other stocks or commodities studied. These results are in agreement with results obtained for American financial markets. / Mercados financeiros são caracterizados por um grande número de unidades e interações complexas, incluindo as interações internas (entre diferentes elementos de um mercado) e fatores externos (influência de outros mercados). Vários métodos de economia, estatística e recentemente econofísica foram desenvolvidos para analisar as séries temporais de variáveis financeiras (retorno de preços de ações, mercadorias e taxas de cambio, índice de mercado, volume de negociação, etc.), com objetivo de estabelecer os modelos teóricos para processos estocásticos que estão em base desses fenômenos. A disponibilidade de dados financeiros de vários mercados e crescente poder computacional resultaram em um grande número de estudos empíricos cujos resultados mostraram algumas propriedades universais: a função risco de retornos de preços segue uma lei de potência com o valor de expoente similar para os vários mercados; os valores absolutos de retornos possuem correlações de longo alcance. Neste trabalho foram usados os métodos de econofísica para estudar as propriedades estatísticas do mercado financeiro brasileiro. Foram analisadas e comparadas as propriedades de escala de função risco e de correlações em séries temporais de retornos de preços de mercadorias agrícolas e preços de ações de várias empresas negociadas na Bolsa de Valores de São Paulo (BOVESPA). Foram analisados os preços diários de cinco mercadorias: açúcar, algodão, café, soja e boi, registrados em período 2000-2008. Para ações, analisamos as características seguintes: preços de abertura, fechamento, valores máximo e mínimo, volume e montante. Todas as séries são diárias, registradas no período de 2000-2008. São estudadas 20 empresas divididas em 4 grupos: bancos, energia, telecomunicações e siderurgia (5 empresas de cada grupo). Para todas as séries estudadas a função risco de retornos de preços segue uma lei de potência com os valores de expoente maiores para ações do que para mercadorias. As correlações são analisadas para os valores absolutos de retornos de preços (volatilidade). Foi usado o método Detrended Fluctuation Analysis (DFA), desenvolvido para quantificar as correlações de longo alcance em séries temporais não estacionárias. Todas as séries mostraram um comportamento persistente, significando que os valores grandes (pequenos) tem maior probabilidade de serem seguidos por valores grandes (pequenos). Os valores de expoente DFA são maiores para mercadorias do que para as ações. Foi utilizada uma generalização de DFA, Detrended Cross Correlation Analysis (DCCA) para analisar as correlações cruzadas entre duas séries. Os valores de expoente DCCA para todas as séries estudadas indicam a existência de correlações cruzadas de longo alcance significando que os valores de cada série possuem memória de longo alcance de seus valores anteriores e também de valores anteriores de outras série. Os resultados estão em acordo com os resultados obtidos para mercado americano.
48

Analýza vybraných poľnohospodárskych komodít z pohľadu investora / Analysis of selected commodities from investor's point of view

Škultéty, Daniel January 2010 (has links)
The purpose of this thesis is to analyze investment options into wheat, corn and rice futures throughout different time horizons. Mostly we use daily closing prices for the last fifteen years. General knowledge of the field in context of nowadays is required to perform such an analysis. To achieve our goals we use technical analysis, time series analysis and we discuss the fundaments of price movements. Contribution of this thesis can be summed as presenting the basic tools of technical analysis in real world, presenting the fundamentals of price movements in one place and practical application of time series analysis on futures prices. By doing so we can confirm that random walk thesis is not unsubstantial but cannot be generalized for all instruments and periods of capital market.
49

Metody a nástroje modelování trhu s více komoditami / Methods and Tools for Modelling of Multi-Comodity Markets

Janeček, Vítězslav January 2008 (has links)
This study investigates Game theory including economic theories related to agricultural production. Model creation simulating economical system is built upon theoretic starting points. Commodity production is simulated using game theory with searching for Nash equilibria. Commodity demand function is grounded on concept of Cournot game. System includes land trading based on sealed-bid auctions with second-price. This model is using external Gambit software which is freeware library for game theory computations. Model evaluation is located in Experiments section where model structure and truthfulness is tested.
50

Valor da marca (BRAND EQUITY) em commodities agropecuárias: percepções e atitudes dos consumidores sobre a carne suína brasileira e importada / Value of the brand (BRAND EQUITY) in agricultural commodities: consumer perceptions and attitudes about the Brazilian pork and imported

Oliveira, Ricardo Osório de 27 March 2012 (has links)
Made available in DSpace on 2016-10-13T14:10:07Z (GMT). No. of bitstreams: 1 Ricardo Oliveira Osorio.pdf: 1862567 bytes, checksum: 813428c042e3674960ae7b2861eeff3f (MD5) Previous issue date: 2012-03-27 / Even sectors which usually offer products with a high degree of similarity as agribusiness can develop brand strategies, which are potentially capable of promoting a greater perceived value by consumers. Brazil is a world leader in the production and export of various agricultural products, and agribusiness is one of the most important sectors of national economy. This paper discusses how the Origin of the Product (national or imported), Perceptions and Attitudes of Consumers about Food Production Processes and Brand Equity assigned by Consumers to Certification Processes, affect the formation of Brand Equity in agricultural commodities. The aim was the characterization of consumer`s attitudes and perceptions that influences the formation of Brand Equity, throughout an empirical study conducted with Brazilian pork consumers. A literature review on branding strategies and their applications for agribusiness is presented. A theoretical construct with six research hypotheses were tested, using a structural equation model. Based on the results obtained from a sample with 132 consumers (interviewed about consumption of Brazilian pork), three out of the six original hypotheses were supported. A second questionnaire about the consumption of imported pork, with 52 respondents, was used to compare means between groups by ANOVA, in order to study the effect of information on the origin of the product on consumer´s attitudes and perceptions. Managerial recommendations based on the confrontation of the results with literature review are presented. Through a better understanding of factors that affect Brand Equity for agricultural commodities, this study sought to suggest Branding strategies that can assist organizations to offer products with higher perceived value by consumers, and thus achieve greater competitive advantage. / Mesmo segmentos como o agronegócio, que em geral oferecem produtos com alto grau de similaridade, podem desenvolver estratégias de marca, as quais potencialmente são capazes de promover uma maior percepção de valor por parte dos consumidores. O Brasil é um dos líderes mundiais na produção e exportação de vários produtos agropecuários, e o agronegócio é um dos segmentos mais importantes da economia nacional. O presente trabalho aborda como a Origem do Produto (nacional ou importado), as Percepções e Atitudes dos Consumidores frente os Processos de Produção dos Alimentos, e o Valor de Marca atribuído pelos Consumidores aos Processos de Certificação, afetam à Formação do Valor de Marca (Brand Equity) em commodities agropecuárias. O objetivo foi caracterizar, por meio de um estudo empírico realizado com consumidores brasileiros de carne suína, as percepções e as atitudes dos consumidores que influenciam à formação do Valor da Marca (Brand Equity). Uma revisão de literatura sobre estratégias de Branding e suas aplicações para o agronegócio é apresentada. Seis hipóteses de pesquisa foram testadas, constituindo assim um constructo teórico que foi analisado por meio de um modelo de equações estruturais. Baseado nos resultados obtidos a partir de uma amostra que contou com 132 consumidores entrevistados sobre o consumo da carne suína brasileira, foram suportadas três das seis hipóteses propostas. Um segundo questionário relativo ao consumo de carne suína importada, com 52 respondentes, foi utilizado para a comparação das médias entre os grupos através da análise de variância ANOVA, a fim de estudar o efeito da informação sobre a origem do produto sobre as percepções e atitudes dos consumidores. Recomendações gerenciais baseadas nos resultados obtidos confrontados com a revisão teórica são apresentadas. Por meio de um melhor conhecimento do comportamento do Valor da Marca (Brand Equity) para commodities agropecuárias, este estudo procurou contribuir sugerindo estratégias de Branding capazes de auxiliar na oferta de produtos com maior valor percebido pelos consumidores, e que assim, ofereçam maior vantagem competitiva para as organizações.

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