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Estimating the potential returns to research and development from sorghum value added products in El Salvador and NicaraguaJaen Celada, Jaeljattin R. January 1900 (has links)
Master of Science / Department of Agricultural Economics / Timothy J. Dalton / Sorghum bicolor (L.) Moench is a drought tolerant crop able to adapt to hot and dry weather. It has excellent chemical and physical properties, which make it a grain of good quality for processing different types of products. This research is an impact assessment study that estimated the potential impacts of new uses of sorghum by using an equilibrium displacement model. The data used was drawn from interviews developed in July 2011. Using total quantity production, prices, prices elasticities and cost shares 8 potential market scenarios were simulated. Results between countries were similar. Thus, the analysis was applied for both countries. Producers gain when the sorghum flour demand is shifted between $6,000 and $ 30,000. When the feed demand curve shifted the producer benefit was between $3 million and $ 13 million. In the scenario where the sorghum grain curve shifted and the demand curve for feed and sorghum flour, producer net benefit is between $300,000 to $2.5 million. Interpreting these results suggest that increasing yield and promoting sorghum as a substitute of maize for feed and sorghum as a substitute of wheat for sorghum flour can benefit producers while helping them to increase yield.
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The impact of the removal of the Multi-Fiber Arrangement on textile and cotton trade of the United States and ChinaXia, Yan 12 April 2006 (has links)
Textiles and apparel trade has been governed by the Multi-Fiber Arrangement
(MFA) for three decades. Trade restrictions have generated substantial welfare losses
and price wedges in exporting and importing countries through trade distortions.
Beginning in 1995, textiles and apparel trade underwent fundamental changes in trade
flows and patterns. The World Trade OrganizationÂs Agreement on Textiles and
Clothing (ATC) aimed to remove all MFA quotas by January 2005.
This study established an equilibrium displacement model to investigate the
impact on textile and cotton sectors of different countries and country-groups of
removing the MFA quota. The model specifies the basic linkages of textile and cotton
markets in the United States, China and four other country-groups. With different
assumptions about U.S. textile supply elasticity, foreign cotton exporters reaction and
changes in the U.S. farm program payments, alternative scenarios are simulated to
predict changes in domestic and import demand for textiles and apparel, import demand
for U.S. cotton, domestic and import price of textiles and apparel, U.S. cotton price and
adjusted world cotton price. Uniform distribution was imposed for selected parameters
involved in the model to overcome the deficiency of equilibrium displacement models of
assuming certainty of known related parameters.
Results indicate increased import demand for U.S. cotton by China, higher U.S.
cotton supply, more textile and apparel supply from China, decreased domestic demand
for U.S. cotton, and lower U.S. domestic demand for textiles and apparel. However,
prices of both textile and cotton markets experience both positive and negative changes
under different scenarios. Holding other assumptions unchanged, when farm program
payments increase, U.S. cotton price and adjusted world cotton price declined. When
farm program payments are held constant, prices rise. The changes expected in U.S.
cotton price are, in absolute value, greater than those of the adjusted world price.
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Value of animal traceability systems in managing a foot-and-mouth disease outbreak in southwest KansasPendell, Dustin Lester January 1900 (has links)
Doctor of Philosophy / Department of Agricultural Economics / Ted C. Schroeder / Concerns regarding management of animal disease and related perceptions about food safety have escalated substantially in recent years. Terrorist attacks of September 2001, discovery of bovine spongiform encephalopathy in a dairy cow in December 2003 in Washington state and subsequent discoveries of BSE infected animals in Texas in 2005 and Alabama in 2006, and recent worldwide outbreaks of highly contagious animal diseases (i.e., Foot-and-Mouth Disease and Avian Influenza A (H5N1)) have made apparent the need for animal traceability in U.S. livestock production and marketing. In addition, animal identification and trace-back systems are rapidly developing throughout the world increasing international trading standards.
In recent years, increasing numbers of economic analyses of animal diseases have integrated epidemiological models into economic frameworks. However, there are only a few studies that have used this integrated framework to analyze the effects of animal traceability on highly contagious animal diseases.
This study’s goal is to quantify and evaluate the economic impacts of different depths of animal identification/trace-back systems in the event of a hypothetical highly contagious foot-and-mouth disease outbreak that poses a threat to U.S. livestock competitiveness. Specifically, an epidemiological disease spread model is used to evaluate the impact of a foot-and-mouth disease outbreak in southwest Kansas. The information obtained from the disease spread model is then used in conjunction with an economic model to determine the changes in welfare of producers and consumers.
Results obtained from the epidemiological model indicate that as the depth of animal identification in cattle is increased, the number of animals destroyed is reduced as are the associated costs. Also, the length of the outbreak is reduced by approximately two weeks. The economic results suggest that as surveillance is increased, decreases in producer and consumer welfare are smaller. Furthermore, as surveillance is increased, decreases in producer and consumer surplus measures can be reduced by approximately 60 percent.
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Amine Transaminases in Biocatalytic Amine SynthesisLand, Henrik January 2016 (has links)
The use of enzymes, nature´s own catalysts, both isolated or as whole cells to perform chemical transformations is called biocatalysis. As a complement to classical chemical catalysis, biocatalysis can be an environmentally friendly and more economical option in the production and synthesis of chemicals. Research on the application of amine transaminases in synthesis of chiral amines have exploded over the last two decades and interest from the industry is increasing. Amine transaminases are promising catalysts due to their ability to perform reductive amination of ketones with excellent enantioselectivity. For a process to be efficient, high substrate specificity of the applied enzyme is an important factor. A variant of Chromobacterium violaceum amine transaminase that was obtained through rational design has an increased specific activity toward (S)-1-phenylethylamine and a set of 4´-substituted acetophenones. This result makes this variant a promising catalyst for the asymmetric synthesis of similar amines. Amine transaminase catalyzed asymmetric synthesis of amines generally suffers from unfavorable equilibrium. Two methods that include spontaneous tautomerization and biocatalytic amidation for equilibrium displacement have therefore been developed. Efficient assays and screening methods are demanded for the discovery and development of novel amine transaminases. For this purpose, a sensitive fluorescence-based assay that holds promise as a high-throughput screening method was developed. One of the major obstacles for application of enzymes in industrial processes is the instability of the enzyme toward harsh conditions. The stability of Chromobacterium violaceum amine transaminase was investigated and improved using co-solvents and other additives. Co-lyophilization with surfactants was also applied to improve the performance of the same enzyme in organic solvents. / <p>QC 20161017</p>
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Regras, normas e padrões no comércio internacional: o Protocolo de Cartagena sobre Biossegurança e seus efeitos potenciais para o Brasil / Rules, Norms and Standards in the international market: the Cartagena Protocol on Biosafety and its potential effects for BrazilSimões, Débora da Costa 01 April 2008 (has links)
O estabelecimento de regras, normas e padrões internacionais relacionados ao comércio de produtos geneticamente modificados é bastante complexo e envolve uma diversidade de interesses. Essa complexidade pode ser evidenciada pela demora em se definir a forma de operacionalizar o Protocolo de Cartagena sobre Biossegurança - PCB. O PCB estabelece normas e padrões para regulamentar o comércio transfronteiriço de organismos vivos modificados com o objetivo de proteger a biodiversidade. Ele afeta diretamente o mercado internacional de commodities agrícolas, podendo alterar a competitividade dos países. Nesse estudo, calcula-se que o PCB atinge 81,2% das exportações mundiais das principais lavouras GM da atualidade: soja, milho, algodão e canola. Nesse contexto, o Brasil ocupa uma posição peculiar, pois foi o único grande produtor mundial de commodities agrícolas que ratificou o acordo. O objetivo central desse trabalho foi verificar as implicações (em termos de custos) e os impactos potenciais da ratificação do PCB pelo Brasil e seus possíveis efeitos no mercado internacional. A análise centrou-se nas negociações referentes ao Artigo 18 do PCB, que define procedimentos para transporte, manuseio, embalagem e uso de OVMs e restringiu-se ao mercado de soja. Primeiramente, definiu-se uma base teórica para analisar os efeitos de barreiras regulatórias no comércio internacional e no mercado doméstico de exportadores e importadores. Verificou-se que esses efeitos são incertos e dependem da capacidade da medida em questão de resolver ou minimizar falhas de mercado. Posteriormente, calculou-se os custos adicionais de identificação de carregamentos contendo OVMs com base em propostas feitas pelos países-Partes durante as negociações: \'contém\' com fornecimento de uma lista de eventos, \'contém\' com quantificação de eventos, e adoção de um sistema de preservação de identidade. Para fins de comparação, esses cálculos não foram feitos apenas para o Brasil, mas se estenderam para a Argentina e EUA, principais competidores brasileiros no mercado de soja. Os números demonstraram que os custos adicionais de implementação do PCB são mais elevados no Brasil do que nos concorrentes e que essa diferença aumenta à medida que as exigências de identificação tornam-se mais rígidas. Por fim, para verificar o impacto desses custos no mercado internacional, utilizou-se o Equilibrium Displacement Model e definiram-se dois cenários. O Cenário 1 considerou que apenas o Brasil cumpriria as normas de identificação do PCB e o Cenário 2 considerou que Argentina e EUA também adotariam medidas equivalentes. Os resultados evidenciaram que ambas situações implicariam em perdas para o Brasil. Considerando todo o complexo, as perdas poderiam chegar a US$ 133 milhões no Cenário 1 e a US$ 329 milhões no Cenário 2. Apesar das exportações brasileiras de soja em grão terem diminuído nos dois casos, as vendas de farelo e óleo aumentaram no Cenário 1, o que indica um incentivo ao processamento. No Cenário 2, entretanto, apenas as exportações de óleo apresentam bons resultados. Com relação aos outros países, o Cenário 2 apresenta melhores resultados. Dessa forma, espera-se que Argentina e EUA também adotem medidas semelhantes às exigidas pelo PCB. / The development of international rules, norms and standards related to the trade of GM products is complex and involves a diversity of interests. This complexity can be verified by the tough negotiations aiming at establishing procedures to put the Cartagena Protocol on Biosafety - CPB in place. The CPB establishes norms and minimum standards to control the transboundary movements of Living Modified Organisms - LMOs in order to protect the biodiversity. It has a direct effect in the international agricultural commodities market and can even alter the countries\' competitiveness. This work estimates that 81.2% of the main GM crops (soybean, corn, canola and cotton) global exports are affected by the CPB. In this context, Brazil is in a peculiar position, as it was the only country among the biggest world agricultural commodities producers that has ratified the agreement. The main objective of this dissertation was to verify the implications (related to additional costs) and potential impacts of the CPB to Brazil and its possible outcomes for the international market. The analysis was restricted to the Protocol\'s Article 18 - which states the rules related to transport, handling, packing and use of LMOs - and to the soybean international market. First, a theoretical framework was defined in order to analyze the effects of regulatory barriers to the international trade and to the domestic markets of exporters and importers countries. Then, the necessary additional costs to identify the cargoes containing LMOs were calculated considering the main proposals submitted by CPB members during the negotiations: \'contains\' with a list of events, \'contains\' with quantification of events and the adoption of an identity preservation system. In order to compare the CPB effects on different countries, this procedure was not only applied to Brazil, but also to Argentina and the US, two important soybeans exporters that have not signed the agreement. The outcomes revealed that the compliance costs of the CPB requirements are greater in Brazil than its competitors and that this difference increases as the exigencies become stricter. Last, the potential impacts of these additional costs in the international market were estimated using the Equilibrium Displacement Model - EDM. Two scenarios were constructed: under Scenario 1 it was considered that only Brazil complied with CPB standards; under Scenario 2, Argentina and the US also adopted equivalent measures with those established by the Protocol. The results showed that Brazil would be harmed in both situations. Considering the whole soybean complex, the country could loose US$ 133 million under Scenario 1 and US$ 329 million under Scenario 2. Though Brazilian soybean exports decreased in both circumstances, it could be verified that there was a stimulus to meal and oil production in the country under the conditions settled in Scenario 1. In Scenario 2, however, the rise of exports concentrated only in the oil market. Regarding Argentina and the US, the Scenario 2 presented better results that Scenario 1. Therefore, it is almost certain that these countries will comply with CPB requirements. It implies that Brazil will incur in greater losses.
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Regras, normas e padrões no comércio internacional: o Protocolo de Cartagena sobre Biossegurança e seus efeitos potenciais para o Brasil / Rules, Norms and Standards in the international market: the Cartagena Protocol on Biosafety and its potential effects for BrazilDébora da Costa Simões 01 April 2008 (has links)
O estabelecimento de regras, normas e padrões internacionais relacionados ao comércio de produtos geneticamente modificados é bastante complexo e envolve uma diversidade de interesses. Essa complexidade pode ser evidenciada pela demora em se definir a forma de operacionalizar o Protocolo de Cartagena sobre Biossegurança - PCB. O PCB estabelece normas e padrões para regulamentar o comércio transfronteiriço de organismos vivos modificados com o objetivo de proteger a biodiversidade. Ele afeta diretamente o mercado internacional de commodities agrícolas, podendo alterar a competitividade dos países. Nesse estudo, calcula-se que o PCB atinge 81,2% das exportações mundiais das principais lavouras GM da atualidade: soja, milho, algodão e canola. Nesse contexto, o Brasil ocupa uma posição peculiar, pois foi o único grande produtor mundial de commodities agrícolas que ratificou o acordo. O objetivo central desse trabalho foi verificar as implicações (em termos de custos) e os impactos potenciais da ratificação do PCB pelo Brasil e seus possíveis efeitos no mercado internacional. A análise centrou-se nas negociações referentes ao Artigo 18 do PCB, que define procedimentos para transporte, manuseio, embalagem e uso de OVMs e restringiu-se ao mercado de soja. Primeiramente, definiu-se uma base teórica para analisar os efeitos de barreiras regulatórias no comércio internacional e no mercado doméstico de exportadores e importadores. Verificou-se que esses efeitos são incertos e dependem da capacidade da medida em questão de resolver ou minimizar falhas de mercado. Posteriormente, calculou-se os custos adicionais de identificação de carregamentos contendo OVMs com base em propostas feitas pelos países-Partes durante as negociações: \'contém\' com fornecimento de uma lista de eventos, \'contém\' com quantificação de eventos, e adoção de um sistema de preservação de identidade. Para fins de comparação, esses cálculos não foram feitos apenas para o Brasil, mas se estenderam para a Argentina e EUA, principais competidores brasileiros no mercado de soja. Os números demonstraram que os custos adicionais de implementação do PCB são mais elevados no Brasil do que nos concorrentes e que essa diferença aumenta à medida que as exigências de identificação tornam-se mais rígidas. Por fim, para verificar o impacto desses custos no mercado internacional, utilizou-se o Equilibrium Displacement Model e definiram-se dois cenários. O Cenário 1 considerou que apenas o Brasil cumpriria as normas de identificação do PCB e o Cenário 2 considerou que Argentina e EUA também adotariam medidas equivalentes. Os resultados evidenciaram que ambas situações implicariam em perdas para o Brasil. Considerando todo o complexo, as perdas poderiam chegar a US$ 133 milhões no Cenário 1 e a US$ 329 milhões no Cenário 2. Apesar das exportações brasileiras de soja em grão terem diminuído nos dois casos, as vendas de farelo e óleo aumentaram no Cenário 1, o que indica um incentivo ao processamento. No Cenário 2, entretanto, apenas as exportações de óleo apresentam bons resultados. Com relação aos outros países, o Cenário 2 apresenta melhores resultados. Dessa forma, espera-se que Argentina e EUA também adotem medidas semelhantes às exigidas pelo PCB. / The development of international rules, norms and standards related to the trade of GM products is complex and involves a diversity of interests. This complexity can be verified by the tough negotiations aiming at establishing procedures to put the Cartagena Protocol on Biosafety - CPB in place. The CPB establishes norms and minimum standards to control the transboundary movements of Living Modified Organisms - LMOs in order to protect the biodiversity. It has a direct effect in the international agricultural commodities market and can even alter the countries\' competitiveness. This work estimates that 81.2% of the main GM crops (soybean, corn, canola and cotton) global exports are affected by the CPB. In this context, Brazil is in a peculiar position, as it was the only country among the biggest world agricultural commodities producers that has ratified the agreement. The main objective of this dissertation was to verify the implications (related to additional costs) and potential impacts of the CPB to Brazil and its possible outcomes for the international market. The analysis was restricted to the Protocol\'s Article 18 - which states the rules related to transport, handling, packing and use of LMOs - and to the soybean international market. First, a theoretical framework was defined in order to analyze the effects of regulatory barriers to the international trade and to the domestic markets of exporters and importers countries. Then, the necessary additional costs to identify the cargoes containing LMOs were calculated considering the main proposals submitted by CPB members during the negotiations: \'contains\' with a list of events, \'contains\' with quantification of events and the adoption of an identity preservation system. In order to compare the CPB effects on different countries, this procedure was not only applied to Brazil, but also to Argentina and the US, two important soybeans exporters that have not signed the agreement. The outcomes revealed that the compliance costs of the CPB requirements are greater in Brazil than its competitors and that this difference increases as the exigencies become stricter. Last, the potential impacts of these additional costs in the international market were estimated using the Equilibrium Displacement Model - EDM. Two scenarios were constructed: under Scenario 1 it was considered that only Brazil complied with CPB standards; under Scenario 2, Argentina and the US also adopted equivalent measures with those established by the Protocol. The results showed that Brazil would be harmed in both situations. Considering the whole soybean complex, the country could loose US$ 133 million under Scenario 1 and US$ 329 million under Scenario 2. Though Brazilian soybean exports decreased in both circumstances, it could be verified that there was a stimulus to meal and oil production in the country under the conditions settled in Scenario 1. In Scenario 2, however, the rise of exports concentrated only in the oil market. Regarding Argentina and the US, the Scenario 2 presented better results that Scenario 1. Therefore, it is almost certain that these countries will comply with CPB requirements. It implies that Brazil will incur in greater losses.
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