O objetivo deste estudo é verificar o grau de integração econômica entre os países membros do Mercosul (Argentina, Brasil, Paraguai e Uruguai) para o período de julho/1995 a setembro/2011, por meio da análise das séries de tempo dos diferenciais de taxa de juros reais (rids) ex ante. São desenvolvidos testes de estacionariedade nas séries bilaterais, considerando a presença de outliers e quebras estruturais, e nas séries em painel. Os rids são então aproximados por um processo AR(1) e avalia-se a evolução temporal desses coeficientes, estimados recursivamente e via janela móvel. Os resultados dos testes de raiz unitária bilateral apresentaram divergências entre si, enquanto os testes considerando os dados em painel apontaram evidências de estacionariedade. Já os resultados encontrados para as medidas de persistência evidenciam que o processo de integração entre os países está aumentando, ainda que lentamente. / The aim of this paper is to assess the degree of economic integration among the members of Mercosul (Argentina, Brazil, Paraguay and Uruguay) from July/1995 to September/2011, through the time-series analysis ex ante real interest rate differentials (rids). Unit root tests are performed to both panel and bilateral series, considering the presence of outliers and structural breaks. The differentials are then approximated by an AR(1) and its coefficients, estimated recursively and by rolling window, are analyzed. While bilateral unit root tests were not unanimous, panel data presented some evidence of stationarity. Persistence measures pointed to an increasing, albeit slow, integration.

Com o crescimento do comércio entre os países emergentes na última década, um aumento do fluxo de capitais entre esses países tem sido observado, o que defende a hipótese de integração financeira crescente entre esses países e seus respectivos mercados acionários. Ao mesmo tempo, essa categoria de comércio tem gerado um fator grupo que tem explicado parte da diferença significativa de desempenho econômico entre os países emergentes e os desenvolvidos, conhecida como decoupling. Esta pesquisa pretende investigar se existe um fenômeno de decoupling entre os mercados acionários dos BRICS e dos EUA e se esse fenômeno pode ser explicado pela integração entre os mercados dos BRICS de 2003 a outubro de 2012. Foram analisados modelos em que a variável dependente é a diferença absoluta de desempenho entre um portfólio com índices dos mercados acionários dos BRICS e o índice S&P500 do mercado norte-americano. A variável independente consistiu de proxies para integração entre os mercados acionários dos BRICS. Os modelos foram analisados antes e depois da crise financeira de 2008. Adicionalmente, foram gerados modelos sem a inclusão do mercado chinês para verificar seu impacto na relação entre as variáveis estudadas. Entre os resultados, foram encontradas evidências de: (i) um possível decoupling entre os desempenhos dos mercados dos BRICS e dos EUA, principalmente de 2003 a 2006; (ii) uma influência significativa da integração dos mercados acionários dos BRICS no decoupling identificado; (iii) um impacto relevante do mercado chinês nos fenômenos analisados; e (iv) mudanças importantes nos resultados antes e depois da crise financeira de 2008. Esses resultados suportam a hipótese de que a recente interação entre os mercados emergentes tem produzido um fator grupo que tem gerado desempenhos significativamente diferentes dos mercados desenvolvidos, tendo implicações importantes para a teoria da diversificação internacional de portfólios. / With the growth of the trade between emerging countries in the last decade, an increase in the capital flow between these countries has been observed, which defends the hypothesis of rising financial integration between these countries and their respective stock markets. At the same time, this category of trade has generated a group factor that has explained part of the significant difference of economic performance between emerging and developed countries, known as decoupling. This research aims to investigate if there is a decoupling phenomenon between the BRICS stock markets and the US market and if this phenomenon can be explained by the integration between the BRICS markets from 2003 to October of 2012. I analyzed models in which the dependent variables is the absolute difference of performance between a portfolio with indexes of BRICS stock markets and the S&P500 index of the north american market. The independent variable consisted of proxies to the integration of the BRICS stock markets. I analyzed the models before and after the financial crisis of 2008. Additionally, models were generated without the inclusion of the chinese market in order to verify its impact on the relation between the studied variables. Among the results, I found evidences of: (i) a possible decoupling between the performances of BRICS and US markets, mainly from 2003 to 2006; (ii) a significant influence of the integration between BRICS markets and on the identified decoupling; (iii) a relevant impact of the chinese market on the analyzed phenomena; and (iv) important changes on the results before and after the financial crisis of 2008. These results support the hypothesis that the recent interaction between the emerging markets has produced a group factor that has generated performances significantly different from the developed countries, having important implications to the theory of international diversification of portfolios.

O objetivo desta dissertação será analisar a dinâmica do processo de integração financeira entre o mercado acionário brasileiro e o norte americano. Buscaremos identificar a relação de interdependência entre os dois mercados acionários ao longo do tempo por meio de testes de cointegração, e de causalidade de Granger com rolling windows, e através de um modelo de correção de erros estimado por meio do filtro de Kalman. Por fim, verificaremos se as séries temporais obtidas nos procedimentos iterativos possuem relação com a volatilidade ou quantidade de negócios dos contratos analisados. Evidenciamos nesta dissertação que a relação de integração financeira observada apresenta caráter variável ao longo do tempo. Isso vale tanto para a relação de cointegração, quanto para a relação de causalidade de Granger entre as séries temporais observadas. Evidenciamos também que a volatilidade das séries apresenta uma relação positiva e significativa com a relação de cointegração observada através dos testes de cointegração por meio de rolling windows. / The aim of this dissertation is to analyze the dynamics of financial integration between the Brazilian and the North American stock market. We will seek to identify the interdependence relationship between the two stock markets over time using rolling cointegration tests, rolling Granger causality tests, and estimating an error correction model using Kalman filter. Finally, we look if the time series obtained in the iterative procedures are related to volatility or quantity of trades from the contracts. We show in this dissertation that the financial integration relationship observed has a time varying character over time. This goes for both the cointegration relationship, and for the Granger causality relationship between the observed time series. We show also that the volatility of the time series has a positive and significant relationship with the cointegration relationship observed through the rolling cointegration tests.

Le commerce mondial joue un rôle de plus en plus important dans les évolutions économiques des pays ainsi que le montre l’apparition du concept de mondialisation. L’avènement des crises économiques modifie le contenu des relations commerciales. Quelques aspects de la libéralisation commerciale et de l’intégration économique des pays sont étudiés ici ; on a envisagé leurs évolutions en prenant en considération les crises. Le commerce international est étudié théoriquement et empiriquement ; la partie théorique (premier chapitre) concerne les définitions générales, les concepts et l’histoire du commerce et de la mondialisation, les analyses empiriques (deuxième et troisième chapitres) sont relatives à cinq pays européens (France, Grèce, Portugal, Slovénie, Espagne) du point de vue de leurs situations commerciales et économiques, ainsi que des effets de la crise sur eux. On a d’abord mesuré les niveaux d’ouverture commerciale et d’intégration financière de ces pays, puis on a précisé l’effet de la crise sur leur niveau d’intégration. Le lien entre les déficits intérieur et extérieur des pays a été étudié, une première fois avec l’analyse simultanée de l’impact de l’investissement sur les deux déficits, une deuxième fois par l’analyse des effets du taux de change, du taux de chômage et de la dette publique sur eux. A l’aide de ces analyses, on a pu vérifier que les activités commerciales et financières internationales des pays jouent un rôle significatif dans la propagation d’une crise extérieure à un pays donné. / The world trade plays an increasingly important role in countries’ economic evolutions as it has been demonstrated by appearance of the concept of globalization. The occurrence of economic crises modifies the content of commercial relationships. Some aspects of trade liberalization and economic integration of countries are studied here and we have considered their evolutions with respect to the crises. The international trade is studied theoretically and empirically. The theoretical part (first chapter) concerns general definitions, concepts and history of trade and globalization. The empirical analyses (second and third chapters) are related to five European countries (France, Greece, Portugal, Slovenia and Spain) and consider their commercial and economic situations, as well as the effects of crises on them. We have firstly measured the levels of trade openness and financial integration of these countries and then we have specified the effect of the worldwide crisis on their integration level. The linkage between countries’ domestic and foreign deficits has been studied; firstly with a simultaneous analysis of investment impact on the two deficits, and secondly by the analysis of the effects of the variations of exchange rate, unemployment rate and public debt on them. Using these analyses we were able to verify that the countries’ international commercial and financial activities play a significant role in spreading a foreign crisis to a given country.

The primary purpose of this thesis was to investigate if the modern Phillips Curve is valid for ASEAN five (Indonesia, Malaysia, Thailand, Singapore and Philippines) countries using a time-varying approach in the form of an ARMA-GARCH model. The method enables us to investigate how the inflation volatility reacts to economic shocks and if its history can predict the conditional variance of inflation. This study also aimed to investigate whether financial liberalisation affects the conditional variance of inflation. Moreover, we introduce a new parameter into the Phillips Curve. We propose the inclusion of a globally decomposed financial spillover index to see how it affects the inflation dynamics. Examining the period between 1996-2020, using monthly data. We find weak results, and the Phillips Curve was only valid for Singapore. Our findings also suggest that the inflation volatility is highly time-varying, indicating the suitability of the ARMA-GARCH framework. Significant coefficients in the model allow forecasting the conditional variance of inflation. The results support the idea that financial liberalisation to be volatility augmenting in some countries, suggesting a negative relationship between the degree of financial integration and received spillover effects. The globally decomposed spillover indices demonstrated weak results. For further investigations, we, therefore, propose the usage of regionally decomposed spillover indices.

Cette thèse démontre que la dynamique d’intégration peut expliquer l’instabilité financière d’une économie. Sur le plan théorique, nous analysons les éventuelles non-linéarités dans l’effet de la libéralisation financière sur la stabilité externe. Sur le plan empirique, nous proposons les modèles à seuil comme alternative aux modèles linéaires conventionnelles. Notre thèse se subdivise en 4 chapitres. Le premier chapitre revisite le débat sur la nature de l’effet exercé par l’intégration financière sur la stabilité externe. Le second chapitre analyse l’intégration financière et la structure d’intermédiation dans les régions les plus assujettis à des sévères crises. Les crises financières majeures se sont survenues au sein de dynamiques non-optimales d’intégration. Le troisième chapitre présente deux modélisations régionales de la relation Intégration financière/Pressions spéculatives. La première démontre que la libéralisation financière accroit les pressions spéculatives au-delà d’un degré seuil. En outre, l’évolution au sein d’une dynamique non-optimale d’intégration accroit les tensions de change dès les premières étapes d’intégration. La seconde recherche préconise que l’effet « pressions spéculatives » du processus d’intégration dépend de la matrice (dynamique d’intégration/ structure financière). Les économies basées sur les crédits bancaires semblent être moins vulnérable aux tensions de change. Le dernier chapitre s’intéresse à l’effet de la dynamique d’intégration sur la vulnérabilité des économies du Moyen-Orient et d'Afrique du Nord aux crises de change. Le premier essai démontre que le maintien d’une dynamique optimale d’intégration retarde le changement structurel dans l’effet de la libéralisation financière sur les tensions de change. Le second essai signale que l’excès de la libéralisation financière constitue un déterminant de la stabilité de change. Désormais ce n’est plus le choix de la séquence d’intégration qui détermine la stabilité de change mais plutôt c’est le maintien d’une dynamique optimale d’intégration. Notre réflexion peut fournir les fondements d’une théorie de dynamique optimale d’intégration. / This thesis demonstrates that the integration dynamics can explain exchange instabilities. Theoretically, we discuss the possible non-linearity in the effect of financial liberalization. Empirically, we suggest the threshold models as an alternative to traditional linear models. Our thesis is divided into 4 chapters. The first chapter re-examines the debate on the financial liberalization impacts on external stability. The second chapter analyses the financial integration and the intermediation structure in the regions the most impacted by severe financial crises. These crises have been produced within non-optimal integration dynamics. Chapter three analyses two regional investigations of the relationship between financial integration and speculative pressures. The first analysis demonstrates that the financial integration increases the speculative pressures once the degree of financial liberalization exceeds a specific threshold. The second investigation suggests that the effect “exchange instabilities” of the financial integration process depends on the matrix financial structure versus liberalization dynamics. The bank-dominated systems seem to be less financially vulnerable than the market-dominated ones. The final chapter focuses on the effect of integration dynamics on MENA economies 'vulnerability to exchange crises. The first investigation suggests that the preservation of an optimal liberalization dynamic has delayed the structural break in the relationship between speculative pressures and financial liberalization. The second investigation outlines that the excess of financial liberalization constitutes an important determinant of exchange stability. It is no longer the choice of integration sequence which determines exchange imbalances, but rather the preservation of an optimal dynamic of integration. As a final contribution, our investigations can provide specific theoretical guidelines related to the optimal dynamic of integration

A presente tese tenta avaliar a política monetária sob o Regime de Metas de Inflação (RMI), num contexto de flexibilidade cambial e integração financeira. No campo teórico, este trabalho avalia no primeiro ensaio, os aspectos teóricos do RMI e também do Novo Consenso Macroeconômico (NCM), assim como a crítica pós-keynesiana ao NCM. Na sequência, avalia-se a evolução do debate acerca da política monetária após a Crise Financeira Internacional, assim como os aspectos teóricos da integração financeira global e dos Ciclos Financeiros Globais, e suas consequências para a condução da política monetária. No aspecto histórico, avalia-se brevemente no segundo ensaio, o comportamento das principais variáveis macroeconômicas concernentes a política monetária, taxa de câmbio e crescimento econômico, assim como, os arranjos institucionais do RMI de cada país, evidenciando suas principais diferenças. O Brasil tem um dos RMI mais rígidos e as maiores taxas de juros entre os países analisados. No âmbito empírico, realizou-se três exercícios econométricos distintos. O primeiro, por meio do modelo VEC, comparam-se a eficiência do RMI brasileiro com outros 12 países selecionados, no que diz respeito ao controle inflacionário, ao repasse cambial e do crescimento econômico. O Brasil, assim como outros países em desenvolvimento, tem um dos RMI mais ineficientes, com evidencias da presença de price-puzzle, além de apresentar um elevado repasse cambial para o nível de preços e ter impactos no crescimento econômico. O segundo exercício econométrico buscou-se analisar a não-linearidade da política monetária brasileira com relação ao repasse cambial para o nível de preços, utilizando o modelo MS-VAR. O modelo mostrou fortes evidências empíricas de que há repasse cambial tanto em momentos de apreciação, quanto de depreciação cambial, configurando assim, uma política monetária com dois regimes cambiais. O terceiro exercício busca evidenciar, por meio do modelo VEC, os impactos que a integração financeira global, tem na condução da política monetária brasileira. Encontrou-se indícios de que a taxa de câmbio opera entre os ciclos financeiros globais e o nível de preços da economia brasileira, mostrando, assim, que a política monetária sob o RMI, tendo como base altas taxas de juros, é ineficiente. Tais fatos sugerem que a taxa de câmbio tem um papel fundamental no controle da inflação e no desempenho do próprio RMI; todavia, há a necessidade de uma reavaliação da política cambial que vêm sendo adotada no Brasil para além do papel de mecanismo de controle de preços. / This study aims to evaluate the monetary evolution of the Inflation Target Regime (IT) in a context of exchange rate flexibility and financial integration. In the theoretical field, this work was evaluated in the first essay, the theoretical questions of the IT and also of the New Macroeconomic Consensus (NMC), as well as a post-Keynesian criticism to NMC. Following an assessment of the monetary policy debate following an International Financial Crisis, as well as the financial issues for the financial and global integration of Global Financials, and their consequences for the generation of monetary policy. The evaluation of the risk in the historical statistics, the evaluation of the risk changes the monetary changes, the risk must change the expansion policies, and the risk must have different conditions. Brazil has one of the most rigid ITs and the main interest rates among the analyzed countries. In the empirical context, the different econometric exercises are carried out. The first one, through the VEC model, compares the efficiency of the Brazilian IT with 12 other selected countries, than respect for inflationary control, exchange rate transfers and economic growth. Brazil, like other developing countries, has more inefficient IT, with evidence of the presence of price-puzzles, as well as a high exchange rate repayment for the price level and the impacts on economic growth. The second econometric exercise sought to analyze the non-linearity of the Brazilian monetary policy in relation to the pass-through to the price level, using the MS-VAR model. The model of empirical demonstrations that there is to change both in moments of appreciation and the exchange depreciation, thus forming a monetary policy with two exchange rate regimes. The third study seeks the evidence, through the VEC model, of the impacts that global financial integration has on Brazilian monetary policy. We find that the indexes of an exchange rate between the cycles and the level of prices of the Brazilian economy, thus showing a monetary policy on the IT, based on interest rates, is inefficient. Such facts should that an exchange rate has a key role in controlling the rate and performance of the IT itself; however, there is a reappraisal of the exchange rate policy that has been adopted in Brazil beyond the role of the price control mechanism.

Submitted by CARLA MARIA GOULART DE MORAES (carlagm) on 2015-04-09T15:25:50Z No. of bitstreams: 1 RafaelGiaretta.pdf: 506222 bytes, checksum: e353f74cbe4c2189a43a03748eb4b9cc (MD5) / Made available in DSpace on 2015-04-09T15:25:50Z (GMT). No. of bitstreams: 1 RafaelGiaretta.pdf: 506222 bytes, checksum: e353f74cbe4c2189a43a03748eb4b9cc (MD5) Previous issue date: 2011 / Nenhuma / Este estudo teve o objetivo de analisar a integração financeira entre o Brasil e o mercado internacional no período de 2002 a junho de 2010. A metodologia empregada foi a revisão teórica e empírica sobre o processo de integração financeira, o fluxo de capitais para o Brasil e a paridade de juros. Os principais resultados são que o Brasil se tornou mais integrado ao mercado internacional durante o período analisado, não somente pelo aumento do volume comercial, mas também pela maior integração financeira. / The present study had the objective to analyze the financial integration between Brazil and the international market from 2002 to June 2010. The methodology used was a review theoretical and empirical the process about financial integration, capital flows to Brazil and the rate of interest. The main results are that Brazil has become more integrated into the international market during the period analyzed, not only by increasing the volume of trade, but also by most financial integration.

Os Bancos Centrais executam a primordial função de buscar a estabilidade monetária em seus respectivos países. Além disto, são também responsáveis pela condução e gerenciamento do sistema de pagamentos e pela condição de prestamista de última instância. As atividades de fiscalização do sistema bancário, no entanto, podem ou não ser de incumbência das autoridades monetárias. Percebe-se, ao longo das décadas mais recentes, que alguns países vêm promovendo mudanças em suas estruturas de alocação das áreas de supervisão, tanto no sentido de delegar esta responsabilidade a uma agência quanto na possibilidade de integrar a supervisão bancária com outras áreas, tais como a de seguros e a do mercado de capitais e títulos. Estas questões, como a de deixar ou não a supervisão inserida dentro dos bancos centrais, e a da sua integração ou não com outras áreas, têm proporcionado diversos debates, tendo sido apontados tanto pontos favoráveis quanto desfavoráveis, em cada uma das situações propostas. No entanto, estes discursos são ainda incipientes, e tal análise ainda carece de novas reflexões. Foi a dificuldade teórica em se definir um modelo de maior eficiência institucional para os países que serviu como ponto de partida e incentivo para o presente estudo. Desta forma, o trabalho aqui apresentado teve como objetivo principal o de identificar características comuns entre alguns dos países que adotam modelos similares. Com base em testes econométricos, foram buscadas associações por meio de probabilidades. Os demais objetivos foram os de mostrar e discutir as experiências de alguns destes países, bem como evidências empíricas encontradas até o presente momento relacionadas ao tema principal deste trabalho. Além disto, a pesquisa descrita também procurou levantar as vantagens e as desvantagens de cada modelo. Os resultados encontrados mostraram haver relação entre os modelos adotados e os poderes do órgão supervisor, os poderes da auditoria externa, a localização geográfica, os índices de inflação, de renda, de nível de consolidação da supervisão financeira, de envolvimento do banco central no processo de supervisão e avaliação do sistema legal. Foi possível concluir que, seja qual for o modelo escolhido, a autoridade monetária deve continuar com alguma forma de participação no processo, seja de forma direta ou indireta, através de canais de comunicação abertos entre esta e os demais órgãos ou agências envolvidos. Isto se deve, principalmente, à ligação estreita que existe entre a solidez do sistema financeiro e a estabilidade monetária de um país, bem como pelo fato das funções de prestamista de última instância e de responsável pelos sistemas de pagamento permanecerem inseridas dentro dos bancos centrais. / Central Banks perform as their main function the search for monetary stability in their respective countries. Besides, they are also responsible for conducting and managing the national payments systems as well as for the condition of lender of last resort. The activities of banking supervision, however, may fall or not under the responsibility of Central Banks. One can realize, along the last decades, that some countries have been implementing some changes in their institutional allocation of banking supervision, either by delegating this responsibility to an agency (external to Central Bank) or by integrating banking supervision with different areas, such as supervision of insurance companies and capital/securities markets. Questions such as “to leave or not banking supervision under the responsibility of central banks?” or “to integrate or not banking supervision with different areas?” have generated several debates, and different aspects, favourable or not, have been pointed out, in each of the proposed situations. However, those discussions are still incipient, and this analysis is still lacking further reflection. It was exactly the theoretical challenge to define a model which should present a bigger institutional efficiency for different countries that has served both as a starting point and as a motivation for the present study. This way, the main goal of the present work was to identify some characteristics in common among some of the countries which have adopted similar models. Based in econometric tests, some associations between selected variables were searched, by means of probabilities estimation. The remainder objectives of the present research are described as follows: to present and to discuss the related experiences of a few selected countries which had adopted some of the analyzed models; to show some empirical evidences which are associated to the same analysis. Moreover, the here described research was also directed to collect the advantages and disadvantages that could be found out in each model. The achieved results pointed out to the existence of a relationship between the adopted model and the powers that the supervisory agency may possess; the powers of external auditing; geographical localization; income indexes; inflation indexes; indexes of level of consolidation of financial supervision; indexes to estimate the involvement of a central bank in the banking supervision process; and finally, an evaluation of the respective national legal system. It was also possible to conclude that, whatever is the selected model, the monetary authority should maintain some sort of participation in this process, either directly or indirectly; by means of communication channels that must be established between this authority and the remainder involved hierarchical structures or agencies. This conclusion is chiefly due to the close link that exists between the strength of a financial system and the monetary stability of a country, as well as to the fact that the functions of lender of last resort and the responsibility for the national payments system are still being under the responsibility of central banks.

This doctoral thesis consists in three chapters investigating cross-country linkages in different samples of industrialized economies. The first chapter shows that the share of the investment cycle's variance due to common international factors has increased in the United States as well in large European countries. The second chapter estimates the impact of the liberalization and internationalization of the financial and banking sectors on real GDP growth comovements. Since the late 1970s, a common international factor has contribued to most economic growth in th EU countries, the United States, Canada and Japan. Among several financial, bank and monetary indicators, equity prices, followed by portofolio investment have been by far the main drivers of this factor. The removal of controls on domestic credit emerges as the only financial liberalization policy measure with a large and negative effect on common growth before 1995. The third chapter investigates the sources of real GDP's comovements between the founding member states of the euro area. Throughout EMU, real cyclical synchronization was robustly linked to disparities in term of fiscal policy and of total factor productivity gains. Cyclical synchronization was closely related to similarities in unit labour cost growth before 2007, but not after 2007 when long-term interest rate differentials became a major cause of cyclical divergence.