Variance Decomposition
Mostrando 13-24 de 33 artigos, teses e dissertações.
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13. Causalidade e transmissão de preços na cadeia avícola no período de 1997-2008 / Causality and prices transmission in the chain poultry for the period 1997-2008
The chicken meat productive chain in Brazil has shown itself as an interesting competitive subsidy, considering the exporting capacity and the differentiation of market products. Nevertheless, intersectorial relations in this system can be considered contradictory, and in some ways even conflictive. Regarding this, one has pursued to evaluate the price trans
Publicado em: 2010
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14. Electrical system fault based on the resulting magnetic signature by Wavelet. / Análise da assinatura magnética resultante de faltas em sistemas elétricos via wavelets.
A methodology based on the analysis of magnetic fields for monitoring the quality of energy in electrical systems is presented herein. Aspects referring to fault detection in electrical systems in particular are evaluated. Contrary to the traditional monitoring process, in which sensors must be physically linked to the circuits under analysis, the results ar
Publicado em: 2009
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15. Diagnostic and reduction of the influence of multicollinearity in the estimation of genetic additive and non-additive effects in multibreed population of cattle (Bos taurus x Bos indicus) / Diagnóstico e redução da influência da multicolinearidade na estimação de efeitos genéticos aditivos e não-aditivos em uma população de bovinos compostos (Bos taurus x Bos indicus)
The genetic additive and heterozygosity effects are important in the genetic evaluation of multibreed populations. When there is strong linear relation between the explanatory variables, the regression coefficients have large standard errors and are sensitive to changes in the data set and to the addition or removal of explanatory variables in the model. The
Publicado em: 2009
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16. Investimento direto externo e comércio exterior da China nos anos 1990 e 2000
Considering the up ahead tendency of trade and foreign direct investment (FDI) flows in Chinese economy, the present study investigated the relationship between FDI and the changes verified in Chinas export structure towards high-tech sectors. First, it was examined Chinas trade pattern of specialization, trough the use of international trade indicators as m
Publicado em: 2008
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17. Exchange rate, interest rate and prices in the Brazilian system of inflation targets / Taxa de câmbio, taxa de juros e preços no regime brasileiro de metas de inflação
The deployment of a new system of monetary policy at the end of the decade of 1990 meant major changes in policy to combat inflation in Brazil. By the year 1999 monetary policy was restrictive, with an exchange rate that could be valued. After July 1999, the Central Bank started to have only one goal: to keep inflation under control, for that, it had as only
Publicado em: 2008
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18. Dinâmica econômica das flutuações na produção de cana-de-açúcar / Economic dynamics from fluctuations in the Brazilian sugar cane production
Since the mid 70s, the Brazilian sugar and ethanol markets have passed through noteworthy changes, leading the country back to the position of number one sugar cane producer in the world. The objective of this thesis is to evaluate the whole of shocks in supply (measured by area and yield unexpected variations), in demand (measured by domestic income and exp
Publicado em: 2008
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19. Meta-analyses of experimental data in the animal sciences
In certain areas of animal research, such as nutrition, quantitative summarizations of literature data are periodically needed. In such instances, statistical methods dealing with the analysis of summary data (generally from the literature) must be used. These methods are known as meta-analyses. The implementation of a meta-analysis is done in several phases
Revista Brasileira de Zootecnia. Publicado em: 2007-07
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20. A criminalidade na Região Metropolitana de Salvador e sua relação intertemporal com o desemprego.
The present work has two big parts: the first one, focused on investigating the advance of the crime in the Metropolitan Region of Salvador (RMS); and, the second part just tries to analyze, still in the RMS, the relation between crime and unemployment. Before, however, it was made a synthesis of the main alternative readings determinatives of the criminal b
Publicado em: 2007
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21. Modelagem econométrico-financeira de uma empresa baseada em vetores auto-regressivos : uma aplicação à Petrobás S.A.
The paper reports efforts towards developing and estimating a Vector Autoregressive (VAR) econometric model representing the financial statements of a firm. Although the model can be generalized to represent the financial statements of any firm, the study was carried out as a case study, where the chosen firm is the largest Brazilian firm: Petrobrás S/A. Th
Publicado em: 2007
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22. CÃmbio e performance inflacionÃria em regimes de cÃmbio flexÃvel e metas de inflaÃÃo: uma investigaÃÃo para paÃses selecionados da AmÃrica Latina
The main goal of this dissertation is to analyze Latin American experiences with flexible exchange rate and inflation target in order to understand the behavior of the exchange rate and inflation in a model with monetary characteristics. The volatility analysis suggests an increase in exchange rate volatility (except for Colombia) and a decrease in inflation
Publicado em: 2007
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23. Metas de inflação, câmbio flexível e autonomia de política monetária
The purpose of this study is investigate the loss or gain of autonomy of monetary policy resulted of inflation targeting regime adoption together with floating exchange rate system in developed and emerging countries. In order to accomplish this, carry out analysis of pulse-response function and variance decomposition originated of vector auto-regressions es
Publicado em: 2006
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24. Fatores condicionantes do crescimento econÃmico de longo prazo a China: aspectos teÃricos e investigaÃÃo empÃrica
The main goal of this dissertation is to empirically analyze Chinaâs growth experience during the period of 1978 to 2003. We have started with the hypothesis that Chinaâs economic growth during the last decades can be characterized by different aspects such as the investment rates (physical capital accumulation), a higher degree of financial and trade open
Publicado em: 2006