Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-31T23:47:20Z No. of bitstreams: 1 SeverinoFelixDeSouza_DISSERT.pdf: 1243624 bytes, checksum: c9825ff9422296d57b57b461d0ca5588 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-05T21:55:57Z (GMT) No. of bitstreams: 1 SeverinoFelixDeSouza_DISSERT.pdf: 1243624 bytes, checksum: c9825ff9422296d57b57b461d0ca5588 (MD5) / Made available in DSpace on 2016-04-05T21:55:57Z (GMT). No. of bitstreams: 1 SeverinoFelixDeSouza_DISSERT.pdf: 1243624 bytes, checksum: c9825ff9422296d57b57b461d0ca5588 (MD5) Previous issue date: 2015-03-18 / As condi??es clim?ticas e ambientais permitiram que o Brasil se tornasse um dos maiores produtores de frutas tropicais do mundo. O Vale do S?o Francisco, ao longo dos anos, vem se destacando como a principal regi?o produtora de frutas do pa?s, especialmente de manga e de uva. A manga, produzida nessa regi?o, tem alcan?ado uma boa inser??o internacional, principalmente, nos mercados europeu e americano. Entretanto, o pre?o interno tem absorvido cada vez mais o impacto das oscila??es do mercado internacional afetando as expectativas de produ??o e comercializa??o dos produtores. O objetivo do estudo ? analisar a rela??o de transmiss?o dos pre?os de exporta??o da manga, com os pre?os do mercado americano e da Uni?o Europeia, no per?odo entre 2003 a 2013. Pretende-se, ainda, analisar os fatores que afetaram as flutua??es das exporta??es da manga brasileira para os principais mercados importadores. Para alcan?ar os objetivos propostos, empregouse, na metodologia, o modelo vetorial autoregressivo, com a finalidade de se constatar os mecanismos de transmiss?o de pre?os e os mecanismos de impactos por meio da fun??o impulso resposta. Utilizou-se, ainda, o modelo Constant Market Share, com o objetivo de se observar a import?ncia dos efeitos competitividade, destino, e crescimento do com?rcio mundial sobre as mudan?as das exporta??es brasileiras de manga, no per?odo em an?lise. Os dados utilizados foram obtidos no database do Minist?rio de Desenvolvimento e Com?rcio Exterior - MIDIC e do FAOSTAT (Food and Agriculture Organization of the United Nations). Entre os resultados encontrados, constatou-se, que os pre?os do mercado interno brasileiro sofrem influ?ncia dos pre?os do mercado americano, e que choques de pre?os promovidos nesse mercado podem repercutir no crescimento dos pre?os internos por v?rios meses. Notou-se ainda, que o efeito competitividade representou a maior parcela do crescimento efetivo das exporta??es brasileira, ou seja, o pa?s melhorou sua competitividade dentre os demais pa?ses exportadores. / Climate and environmental conditions allowed Brazil to become one of the largest producers of tropical fruits in the world. The S?o Francisco Valley, over the years, has emerged as the main fruit-producing region of the country, especially mangos and grapes. The mango, which is produced in this region, has reached a good international position, especially in European and American markets. However, the domestic price has absorbed more and more the impact of fluctuations in the international market expectations affecting the production and marketing of producers. The objective of the study is to analyze the transmission ratio of export prices of the mango, with the American market prices and the European Union in the period from 2003 to 2013. It is intended also to analyze the factors affecting the fluctuations of exports Brazilian mango for the main import markets. To achieve the proposed objectives, we used, in the methodology, the autoregressive vector model, in order to find the price transmission mechanism and the mechanisms of impacts through the impulse response function. We also used, the Constant Market Share model, in order to observe the importance of the effects competitiveness, destination, and growth in world trade on the changes of Brazilian mango exports in the period. The data used were obtained from the database of the Ministry of Development and Foreign Trade - MIDIC and FAOSTAT (Food and Agriculture Organization of the United Nations). Among the results, it was found that the Brazilian domestic prices are influenced by the US market price, and that price shocks promoted this market can impact on the growth of the internal prices for several months. It was noted also that the competitiveness effect accounted for the largest portion of the effective growth of Brazilian exports, in other word, the country has improved its competitiveness among the other exporting countries.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-03T22:36:01Z No. of bitstreams: 1 ThiagoPiresDeLimaMiranda_DISSERT.pdf: 1878073 bytes, checksum: 0265de74478fa998f9126156d348489e (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-11T18:40:08Z (GMT) No. of bitstreams: 1 ThiagoPiresDeLimaMiranda_DISSERT.pdf: 1878073 bytes, checksum: 0265de74478fa998f9126156d348489e (MD5) / Made available in DSpace on 2017-04-11T18:40:08Z (GMT). No. of bitstreams: 1 ThiagoPiresDeLimaMiranda_DISSERT.pdf: 1878073 bytes, checksum: 0265de74478fa998f9126156d348489e (MD5) Previous issue date: 2016-07-29 / A expans?o das fronteiras agr?colas do Brasil tem alterado o mapa da produ??o de gr?os do pa?s; neste ?nterim a regi?o formada pelos estados do Maranh?o, Tocantins, Piau? e Bahia, denominada MATOPIBA tem se revelado como nova regi?o produtora de gr?os, especialmente soja e milho. O presente estudo visa compreender como se d? a transmiss?o de pre?os do milho em gr?os entre a regi?o do MATOPIBA e os principais estados produtores de milho do Brasil: Mato Grosso e Paran?. Especificamente procura-se verificar a exist?ncia da transmiss?o de pre?os, identificar o sentido de causalidade na transmiss?o, estimar a elasticidade da transmiss?o e verificar a validade da Lei do Pre?o ?nico, com foco voltado para a regi?o do MATOPIBA. Para cumprir o objetivo, utilizou-se s?ries de pre?os no n?vel de produtor para a saca de 60 kg do milho em gr?os, dos seguintes estados: Maranh?o, Tocantins, Piau?, Bahia, Mato Grosso e Paran?. Os m?todos de pesquisa utilizados foram os testes de raiz unit?ria, teste de cointegra??o de Johansen, vetor de corre??o de erro e teste de causalidade de Granger. Compreender como se d? a forma??o e transmiss?o de pre?os no mercado de milho no pa?s, contribui para uma melhor concep??o da din?mica inerente a este com?rcio. Como diferencial, este trabalho introduz a regi?o do MATOPIBA nas an?lises de transmiss?o de pre?os, que ainda n?o foi encontrado na literatura sobre o tema. Os resultados indicam a exist?ncia de transmiss?o de pre?os e integra??o espacial entre o estado do Paran? e a regi?o do MATOPIBA, validando os pressupostos da Lei do Pre?o ?nico para este mercado. J? o estado do Mato Grosso n?o se integra totalmente ? regi?o do MATOPIBA, tal fato pode ser explicado pelo fato deste estado estar integrado de forma mais forte com o mercado externo. / The expansion of the agricultural frontier in Brazil has changed the map of the country's grain production; in the meantime the region formed by the states of Maranh?o, Tocantins, Piau? and Bahia, called MATOPIBA has been revealed as new grain producing region, especially soybeans and corn. This study aims to understand how is the transmission of corn prices in grain between the region of MATOPIBA and the main producing areas of corn from Brazil: Midwest and South The goal is to analyze the transmission of corn prices in grains, from 2005 to 2016, between the region of MATOPIBA and the states of Mato Grosso and Paran?, which are most representative in the production of corn in the Midwest and South, respectively. Specifically seeks to determine the existence of price transmission, identify the direction of causality in the transmission, to estimate the elasticity of the transmission and check the validity of the Law of One Price, focusing facing the MATOPIBA region. To meet the goal, we used price series producer level for a bag of 60 kg of maize grain, the following states: Maranh?o, Tocantins, Piau?, Bahia, Mato Grosso and Paran?. The research methods used were the unit root tests, cointegration test of Johansen, error correction vector and Granger causality test. Understanding how is training and transmission of prices in the corn market in the country, contributes to a better design of the dynamics inherent in this trade. As a differential, this work introduces the region of MATOPIBA in the price transmission analysis, which has not yet been found in the literature on the subject. The results indicate the existence of price transmission and spatial integration between the state of Paran? and the MATOPIBA region, validating the assumptions of the Law of One Price for this market. But the state of Mato Grosso do not fully integrates with the MATOPIBA region, this fact is explained because this state is integrated more strongly with the foreign market.