A globalização desencadeou uma maior aproximação econômica entre os indivíduos, as empresas e os governos do mundo todo. Desta forma, de maneira muito rápida são executadas decisões de investimentos por parte dos aplicadores financeiros por todo o mundo na busca de governos ou empresas que se disponham a pagar “mais juros” sobre o capital financeiro aplicado. Assim, a globalização financeira e a abertura econômica estão intimamente relacionadas com o câmbio e a política monetária. A essência dessa relação foi desenvolvida na década de 1960 por Mundell e Fleming como a "Trindade Impossível", a qual destaca que é possível atingir apenas dois dos três desejáveis objetivos de uma nação: a integração financeira, a estabilidade da taxa de câmbio e a autonomia monetária. Neste contexto, o objetivo central deste estudo será analisar a influência da globalização financeira na determinação da taxa de juros brasileira, observando o atual contexto da globalização financeira no mundo e no Brasil e as interações entre os mercados monetário e de câmbio. Então, este estudo é de grande relevância porque a globalização fez com que o globo deixasse de ser apenas uma figura astronômica, mas sim um território no qual todos se encontram relacionados e há uma gama de relações que passam desapercebidas no dia a dia, que aqui serão evidenciadas. Para isso, há cinco partes neste estudo. A primeira parte apresentará uma introdução do tema; a parte dois abordará a globalização financeira, desde uma visão geral sobre o assunto até os seus efeitos no mundo e no Brasil; a parte três apresentará as interações dos mercados monetário e de câmbio; a parte quatro apresentará a Trindade Impossível; a parte cinco avaliará aspectos que afetam a política monetária brasileira, a partir de um estudo econométrico, que explica a taxa de juros do Brasil como função de alguns parâmetros endógenos e exógenos; e a parte seis destacará as principais conclusões sobre a influência da globalização financeira na determinação da taxa de juros do Brasil, especialmente nos últimos quinze anos da história brasileira. / Globalization approached individuals, businesses and governments economically around the world. In this way, financial investors take decisions searching for governments or companies which are willing to pay "more interests" for the financial capital invested. Thus, financial globalization and economic liberalization are closely related to the exchange rate and monetary policy. The essence of this relationship was developed in the 1960s by Mundell and Fleming as the "Trinity Impossible", that means to achieve only two out of three desirable goals of a nation: financial integration, exchange rate stability and monetary autonomy. In this context, the main goal of this study is to analyze the influence of financial globalization that affects Brazilian interest rates, observing the current context of financial globalization in the world and in Brazil; and the interactions between monetary and exchange markets. So, this study is very important because globalization has made the globe not just an astronomical figure, but a territory in which everybody is related, and there is an range of relationships unrealized every day. That will become apparent in this study. For that, there are five parts in this study. Part one will be an introduction of the theme; part two will deal with financial globalization, from an overview of the subject to its effects in the world and in Brazil; part three will present the interactions of monetary and exchange markets; part four will present the Trinity Impossible; part five will evaluate aspects that affect Brazilian monetary policy, by a econometric model, which explains Brazilian interest rates as a function of some endogenous and exogenous parameters; and part six will highlight the main findings on the influence of financial globalization that affects Brazilian interest rates, especially in the last fifteen years in Brazilian history.

Made available in DSpace on 2016-12-23T14:00:36Z (GMT). No. of bitstreams: 1 Bernardino Josafat da Silva Castanho.pdf: 1318335 bytes, checksum: 7d9c7ee77462f4c2f552382199c35477 (MD5) Previous issue date: 2011-04-01 / The main objective of this dissertation is the research of a formal model for the monthly forecast of the Value Added Taxes on sales and services (ICMS) collected by the State of Espírito Santo, derived from the term series data analysis of the tax revenue from January 2000 to December 2009 and from the composition basis of the taxation incidence of the tax. The statistical characteristics of the ICMS series were identified and forecasts were drawn up with the use of Holt-Winters exponential smoothing models, of Box-Jenkins methodology, with intervention analysis for structural change detection and of a causal econometric model with dynamic structure. For the specification of the econometric model, the most relevant sectors of the economy that compose the ICMS tax basis and directly influence the tax revenue have been identified. It was chosen the mixed econometric model with multiple regression and only one behavioral equation. The predictive performance of the models was compared through the mean absolute percentage error (MAPE), in order to choose the one that shows the best estimate for the year 2010, used as basis of efficiency evaluation of the generated ex-post forecast / Esta dissertação tem como principal objetivo a pesquisa de um modelo formal para a previsão de receitas tributárias estaduais do ICMS do Estado do Espírito Santo a partir da análise dos dados da série temporal da arrecadação no período de janeiro de 2000 a dezembro de 2009 e da composição da base de incidência tributária do imposto. Foram identificadas as características estatísticas da série do ICMS e elaboradas previsões com utilização dos modelos de alisamento exponencial de Holt-Winters, da metodologia de Box-Jenkins, com análise de intervenção para detecção de mudança estrutural, e de um modelo econométrico causal com estrutura dinâmica. Para a especificação do modelo econométrico foram identificados os setores mais relevantes da economia que compõem a base tributária do ICMS e influenciam diretamente a arrecadação. Foi escolhida a modelagem econométrica mista com regressão múltipla e uma só equação comportamental. O desempenho preditivo dos modelos foi comparado através do erro percentual absoluto médio, para a escolha daquele que apresentar a melhor estimativa para o ano de 2010, utilizado como base de avaliação da eficiência da previsão ex-post gerada

O presente trabalha busca avaliar o processo de liberalização da conta capital em implementação no Brasil a partir da década de 1990, através da pesquisa nos trabalhos já registrados na literatura internacional (capítulo 2), associada a uma abordagem empírica própria (capítulo 4). Utiliza-se de dois índices independentes para avaliar o comportamento do setor externo da economia (ICC, de jure, e IAF, de facto), e, assim, realizar maiores inferências econométricas sobre tal processo, somando-se às iniciativas anteriores em compreender os vínculos entre a abertura financeira e o desempenho macroeconômico nos países em desenvolvimento em geral, e no Brasil, em particular. Nesse sentido, identificou-se a ampliação do grau de conversibilidade da conta capital do País no período 1990-2005 (capítulo 3) sem, entretanto, se verificar uma evidência de geração de benefícios em termos de crescimento econômico e de redução de volatilidade macroeconômica, nos termos apontados nos exercícios econométricos – o IAF chega, inclusive, a apontar uma relação robusta do aumento dos fluxos financeiros com uma maior oscilação da taxa de câmbio. Os resultados apresentados vão ao encontro da tendência predominante na literatura internacional, qual seja, de que não se consegue estabelecer uma relação causal positiva e robusta entre liberalização financeira e crescimento econômico. No mesmo sentido, a experiência brasileira na liberalização financeira, capturada pela evolução do ICC e do IAF, parece estar vinculada a um aumento na taxa de juros, e não a sua redução. Esses resultados confirmam a hipótese de que a integração de um país em desenvolvimento aos fluxos de capitais internacionais leva à necessidade de práticas de juros mais altas para atraí-los e os manter no País. Conclui-se pela conveniência de um grau ótimo de exposição dos países periféricos aos fluxos de capitais internacionais, controlando riscos e proporcionando avanços econômicos, sobretudo contando com um gerenciamento prudencial da conta capital por parte das autoridades monetárias. / The present study seeks to investigate the dynamics of capital account liberalization in implementation in Brazil since the 1990’s, analyzing previous papers on international literature (chapter 2), associated with an empirical framework, based on a vector autoregressive (VAR) method (chapter 4). It’s used two independents index as proxies in order to evaluate the behavior of external sector of the economy (ICC, de jure, and IAF, de facto), and, hence, make the econometric inferences about such process. In general terms, the aim is to contribute by comprehending the relation between financial openness and macroeconomic performance in developing countries, in general, and specifically in Brazil. For such, the task identified the broadening of capital account convertibility in the period 1990-2005 (chapter 3), without verifying evidences on benefits such as economic growth or reduction of macroeconomic volatile, according to the econometric exercises – IAF, indeed, supports a strong relation between the increase of financial flows with a greater variability on exchange terms. The empirical findings are similar to those predominant on international literature, i.e., that it does not exist a positive and strong association between financial liberalization and economic growth. In fact, brazilian experience on financial liberalization, measured by the ICC and IAF, seems to be related to an increase on interest rates, and not on its reduction, as could be supposed, which confirm the hypothesis that integration of a developing country to international capital flows creates the necessity of higher interest rates to attract and maintain then in a country. We conclude for the convenience of an optimum exposition of periphery economies to international capital flows, through a prudent management of capital account by the monetary authorities, controlling associated risks while permitting economic advances.

CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior / FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico / Shrimp farming has been consolidated as one of the most promising economic activities of the Northeast, where it has also been shown to be responsible for high negative impacts on the coastal environment. The research problem was to see how productivity is affected by the adoption of environmental management practices by analyzing the interaction between the productivity factor and other environmental management factors. To do so, we estimated the linear type regression analysis, to obtain a mathematical equation which quantify the relationship between productivity and other variables. The survey was conducted in 60 shrimp farms located in CearÃ, on farms intended only for fattening phase. Were raised environmental management practices adopted by producers and created management indices,where these indices were aggregated into a single index that along with the variables that describe the productive characteristics and location of the farms originated econometric linlog semi-logarithmic models. Regression analysis showed that the yield is better explained by the storage density, intensive production system periodic servicing. Environmental management is not configured as a factor that influences productivity, justifying the low level of environmental management by shrimp farmers. / A carcinicultura vem se consolidando como uma das mais promissoras atividades econÃmicas da RegiÃo Nordeste, onde tambÃm tem sido apresentada como responsÃvel por elevados impactos negativos sobre o ambiente costeiro. O problema da pesquisa consistiu em verificar como a produtividade à afetada pela adoÃÃo de prÃticas de gestÃo ambiental, atravÃs da anÃlise da interaÃÃo entre o fator produtividade e os outros fatores de gestÃo ambiental. Para isto, estimou-se uma anÃlise de regressÃo do tipo linear, para obter uma equaÃÃo matemÃtica que quantificasse o relacionamento entre produtividade e outras variÃveis. A pesquisa foi realizada em 60 fazendas de carcinicultura localizadas no CearÃ, em fazendas destinadas somente à fase de engorda. Foram levantadas as prÃticas de gestÃo ambiental adotadas pelos produtores e criados Ãndices de manejo, onde estes Ãndices foram agregados em um Ãnico Ãndice que juntamente com as variÃveis que descrevem as caracterÃsticas produtivas e de localizaÃÃo das fazendas originou modelos economÃtricos semi-logarÃtmicos lin-log. A anÃlise de regressÃo mostrou que a produtividade à melhor explicada pela densidade de estocagem, sistema de produÃÃo intensivo a assistÃncia tÃcnica periÃdica. A gestÃo ambiental nÃo se configura como um fator que influencie a produtividade, justificando o baixo nÃvel de gestÃo ambiental pelos carcinicultores.

O presente trabalha busca avaliar o processo de liberalização da conta capital em implementação no Brasil a partir da década de 1990, através da pesquisa nos trabalhos já registrados na literatura internacional (capítulo 2), associada a uma abordagem empírica própria (capítulo 4). Utiliza-se de dois índices independentes para avaliar o comportamento do setor externo da economia (ICC, de jure, e IAF, de facto), e, assim, realizar maiores inferências econométricas sobre tal processo, somando-se às iniciativas anteriores em compreender os vínculos entre a abertura financeira e o desempenho macroeconômico nos países em desenvolvimento em geral, e no Brasil, em particular. Nesse sentido, identificou-se a ampliação do grau de conversibilidade da conta capital do País no período 1990-2005 (capítulo 3) sem, entretanto, se verificar uma evidência de geração de benefícios em termos de crescimento econômico e de redução de volatilidade macroeconômica, nos termos apontados nos exercícios econométricos – o IAF chega, inclusive, a apontar uma relação robusta do aumento dos fluxos financeiros com uma maior oscilação da taxa de câmbio. Os resultados apresentados vão ao encontro da tendência predominante na literatura internacional, qual seja, de que não se consegue estabelecer uma relação causal positiva e robusta entre liberalização financeira e crescimento econômico. No mesmo sentido, a experiência brasileira na liberalização financeira, capturada pela evolução do ICC e do IAF, parece estar vinculada a um aumento na taxa de juros, e não a sua redução. Esses resultados confirmam a hipótese de que a integração de um país em desenvolvimento aos fluxos de capitais internacionais leva à necessidade de práticas de juros mais altas para atraí-los e os manter no País. Conclui-se pela conveniência de um grau ótimo de exposição dos países periféricos aos fluxos de capitais internacionais, controlando riscos e proporcionando avanços econômicos, sobretudo contando com um gerenciamento prudencial da conta capital por parte das autoridades monetárias. / The present study seeks to investigate the dynamics of capital account liberalization in implementation in Brazil since the 1990’s, analyzing previous papers on international literature (chapter 2), associated with an empirical framework, based on a vector autoregressive (VAR) method (chapter 4). It’s used two independents index as proxies in order to evaluate the behavior of external sector of the economy (ICC, de jure, and IAF, de facto), and, hence, make the econometric inferences about such process. In general terms, the aim is to contribute by comprehending the relation between financial openness and macroeconomic performance in developing countries, in general, and specifically in Brazil. For such, the task identified the broadening of capital account convertibility in the period 1990-2005 (chapter 3), without verifying evidences on benefits such as economic growth or reduction of macroeconomic volatile, according to the econometric exercises – IAF, indeed, supports a strong relation between the increase of financial flows with a greater variability on exchange terms. The empirical findings are similar to those predominant on international literature, i.e., that it does not exist a positive and strong association between financial liberalization and economic growth. In fact, brazilian experience on financial liberalization, measured by the ICC and IAF, seems to be related to an increase on interest rates, and not on its reduction, as could be supposed, which confirm the hypothesis that integration of a developing country to international capital flows creates the necessity of higher interest rates to attract and maintain then in a country. We conclude for the convenience of an optimum exposition of periphery economies to international capital flows, through a prudent management of capital account by the monetary authorities, controlling associated risks while permitting economic advances.

Consumer function is a standard instrument of quantitative economic analysis to examine the relationship between consumer expenditure and income or other influencing factors such as liquid assets, interest rates or various demographic and social factors. In this thesis are presented the most frequently used methods in econometric analysis of consumption function. Attention is paid to the hypothesis of absolute income, relative income, life cycle, permanent income, rational expectations and consumption function based on the error correction model. Furthermore, the suitability of individual models for the current economic situation in the Czech Republic is assessed. Subsequently an empirical model of consumption function for the Czech Republic is designed and tested. Furthermore, the estimates of each consumption function model for the period before and after economic crisis of 2008-2009 are performed and compared. Finally, a short-term prediction of the consumption of Czech households is made.

In this study a structural model of the South African stock market, the Johannesburg Stock Exchange (JSE), was developed and estimated econometrically. The study has made three important contributions to the literature. Firstly, a structural model of the South African stock market has been developed, which quantifies the relationships between the stock market and macroeconomic variables while analyzing the impact of foreign markets and phenomena such as contagion, policy changes and structural economic changes on the JSE. This will improve the economic agents’ understanding of the functioning of the stock market and potentially assist in forecasting the stock market. Secondly, investors are generally assumed to be risk and/or loss averse. This study explains how this risk and/or loss aversion of investors can cause asymmetry in stock prices and the study evaluates different types of stock market asymmetry with advanced econometric techniques such as the threshold cointegration test of Siklos and Enders (2001) and a Markov switching regime model. The Markov switching regime model is used to model the South African business cycle and to construct an indicator for the state of the business cycle, which is in turn used to introduce cyclical asymmetry in the stock market model. The Markov switching regime model is in itself a substantial contribution to the literature since no Markov switching regime model has been estimated for the South African business cycle yet. Apart from being used to capture cyclical asymmetry in the stock market, the Markov switching regime business cycle model can also be used to identify turning points in the South African economy and to model economic growth. Finally, the forecasting performance of the stock market model developed in this study is compared to other stock market models. According to the results, this model is preferred to the other stock market models in terms of modelling and forecasting the level and direction of the JSE. This means that investors and policy markets can use this model to simulate the impact of changes in macroeconomic indicators on the future course of the stock market and use it to develop profitable trading rules. / Thesis (PhD (Econometrics))--University of Pretoria, 2005. / Economics / unrestricted

The purpose of this thesis is to analyze: (a) the determinants of the global price of uranium; and (b) how this price could be affected by different nuclear power generation scenarios for 2030. To do this a multivariable regression analysis will be used. Within the model, the price of uranium is the dependent variable and the independent variables are generated nuclear power electricity representing demand (GWh), price of coal as a substitute to generated nuclear power electricity, and the price of oil representing uranium production costs. The empirical results show that generated nuclear electricity and the oil price, to be statistically significant at the 5 percent level. The coal price was not however a statistically significant. The scenarios for 2030 are three possible nuclear power generation demand cases; high, medium and low demand. The results for the high demand generated a price of 255 US$/kg and the medium demand 72US$/kg.

Development economists generally argue that poor countries at their early stages of development are often faced with limited domestic resources for development, and can therefore borrow from the developed nations to boost their rate of growth and development. This financing gap problem, which is based on the Harrod-Domar growth theory, has made developing countries, especially Sub-Saharan Africa, to accumulate large amount of external debt that they could no longer sustain. Moreover, there is now a growing concern that the large external debt service payment is retarding economic growth and investment in the heavily indebted poor countries (HIPCs), while also displacing current expenditure in priority sectors like health, education, and social infrastructure. This dissertation therefore, examines the impact of external debt on economic growth and investment in ECOWAS Sub-Saharan Africa over the period 1980-1999. Unlike the traditional debt and growth studies that use a-spatial methods, this study employs spatial autoregressive growth and investment models to determine the effects of spatial interaction and spatial dependence among ECOWAS countries during the period of the crisis. It is obvious that countries are spatial entities that interact with one another, and as such, the growth trends in one country may actually depend on the growth trajectories of others. Based on the above assumptions, the models use external debt service and total debt stock ratios, which are extracted from the World Bank and African Development Bank databases, as key or control variables plus other explanatory variables. The maximum likelihood estimation of both models yield mixed results across time. The results indicate the presence of both positive and negative spatial dependence in ECOWAS countries across time. While external debt service ratio is found to have an inverse relationship with economic growth in most periods under investigation, the total debt stock to GDP ratio only affect growth in fewer periods than expected. With regards to public investment, the external debt service ratio is found to have no impact on public investment in ECOWAS countries. However, the total debt stock to GDP ratio is found to have a negative relationship with public investment in most periods, which suggest that relying on foreign capital to boost growth and investment could be counter productive in Sub-Saharan Africa. (author's abstract)

Στη παρούσα μελέτη, αρχικά παρουσιάζονται από θεωρητική πλευρά θέματα που αφορούν το ρυθμιστικό πλαίσιο, τον πιστωτικό κίνδυνο, τα μη εξυπηρετούμενα δάνεια και οι έννοιες Ευρωζώνη και Ευρωσύστημα. Ακολούθως, με τη χρήση ενός οικονομετρικού μοντέλου επιχειρήθηκε ο προσδιορισμός των παραγόντων εκείνων που επηρεάζουν τον δείκτη μη εξυπηρετούμενων δανείων στην Ευρωζώνη. Ο δείκτης των μη εξυπηρετούμενων δανείων ουσιαστικά συνιστάται ως προσεγγιστική μεταβλητή του πιστωτικού κινδύνου και την περίοδο αυτή της παρατεταμένης ύφεσης αποτελεί ενδεχομένως τη μεγαλύτερη απειλή που αντιμετωπίζουν τα διάφορα τραπεζικά συστήματα όλου του κόσμου. Χρησιμοποιώντας συγκεντρωτικά δεδομένα (aggregate data) σε ένα πάνελ 13 χωρών της Ευρωζώνης για την περίοδο 2000-2008 και με την βοήθεια της fixed effect προσέγγισης, εντοπίστηκαν ισχυρές συσχετίσεις μεταξύ του NPL και διαφόρων μακροοικονομικών και τραπεζικών (banκ specific) παραγόντων. Πιο συγκεκριμένα, τα ευρήματα της εμπειρικής διερεύνησης, επιβεβαιώνουν τη διεθνή βιβλιογραφία καθώς από πλευράς τραπεζικών μεταβλητών ισχυρή επίδραση στο δείκτη μη εξυπηρετούμενων δάνειων εμφανίζει ο δείκτης κεφαλαιακής επάρκειας, ο δείκτης δάνεια προς καταθέσεις και ο δείκτης των μη εξυπηρετούμενων της προηγούμενης χρονιάς. Τέλος, από μακροοικονομικής πλευράς το δημόσιο χρέος και η ανεργία φαίνεται να είναι δυο επιπλέον παράγοντες που επιδρούν στη διαμόρφωση του δείκτη, αποτυπώνοντας ότι η κατάσταση της οικονομίας των χωρών της ευρωζώνης συνδέεται άρρηκτα με τον δείκτη NPL. / In this study, from the theoretical point of you, issues regarding regulation, credit risk, non-performing loans, Eurozone and Eurosystem are presented. Then, implementing an econometric model it was examined which factors influence the ratio of nonperforming loans in the Eurozone. It is worthwhile to mention that the ratio of NPLs can be used as a proxy of credit risk. Nowadays, credit risk seems to be the greatest risk, which banking systems are facing all over the world. Particularly, Using aggregate data on a panel of 13 countries for the period 2000-2008 and applying the fixed effect approach, strong correlations between the NPL and various macroeconomic and bank specific factors are confirmed. Our findings largely agree with the literature as, in terms of bank-specific variables, the capital ratio, the loans to deposits ratio and the rate of non-performing loans of the previous year appear to exert a powerful influence on the non-performing loans rate. At the same time, from a macroeconomic perspective, the public debt and unemployment seem to be two additional factors that affect the index, revealing that the state of the economy of Eurozone countries is clearly linked to the NPL index.