目前超低生育率現象，已對整體社會的走向、國家經濟的發展、生活思維的方式等都產生了相當大的影響。換言之，生育不僅是婦女本身的問題，它與國際社會的動態、經濟的全球化、企業的國際化、現代的子女教育、社會的性別教育、老年人的護理等都有著相當緊密的關係。因此，本研究的主要目的，在於探討臺灣各縣市房地產價格對生育率的影響，並瞭解臺灣生育率持續下降的癥結所在，找出可能影響生育率下降的主要因素加以分析。 本文利用臺灣23個縣市別的追蹤資料，涵蓋期間為2000年至2008年，採雙因子固定效果模型進行實證分析。估計結果發現，在控制其他變數不變之下，在生育率遞延二期時，臺灣各縣市平均地價對生育率為負影響，且在生育率遞延三期時更為顯著，兩者之間的資源排擠效果更為強大。而其他影響臺灣生育率的主要因素，如：各縣市農業人口比例、各縣市粗結婚率、與外國人結婚人數比例皆呈顯著正影響；臺灣各縣市平均地價、原住民人數比例及婦女勞動參與率皆呈顯著負影響。 依本研究結果顯示，房地產價格是影響臺灣生育率相當重要的因素，政府應需高度正視此問題並有所作為。建議未來政府在訂定國家發展政策時，除需研擬更多提升生育率的策略，如：降低父母生育子女的機會成本、改善學前幼托體系，以及加強減輕家庭育兒壓力的宣導工作等，並可增加控制「臺灣房地產價格」及避免房價炒作之策略，以促進國家永續發展及增強國際競爭力。 / The current low fertility rate has been a great impact on our entire social trend, the development of national economy, and the way we think. That is, fertility is not only women’s consideration, but also an issue connected closely to international society, economical globalization, internationalization of business, children education, sex education, and nursing care of the elders. As a result, the main purpose of this paper lies on the effect of average land price on fertility rate in Taiwan. This article uses the panel data of the 23 counties and cities of Taiwan from 2000 to 2008, and does the evidence-based analysis by two-factor fixed-effects model. We found that the average land price has conspicuously positive effect on the fertility rate in Taiwan. While other main factors affect the fertility rate in Taiwan such as the proportion of farm-workers, crude marriage rate, and the proportion of marriage with the foreigners have conspicuously positive effects on it; on the other hand, female labor force participation and the proportion of aborigine have conspicuously negative effects on it. According to our study, average land price is the most important factor which affects the fertility rate in Taiwan, and the government should face the problem and do something to it. When making policy, it is suggested the government may take into consideration of how to control the housing price in Taiwan and avoid housing price speculation.

1994年財政分權以後，中國大陸城鄉收入差距經歷了一段縮小又擴大的變化，許多學者開始將研究焦點放在財政分權對於城鄉收入差距的影響層面。為了瞭解財政分權對於城鄉收入差距到底造成何種影響，本研究目的有以下三點：一、為探討財政分權對於城鄉收入差距是否造成影響，二、為瞭解制度因素、地方政府財政支出對於城鄉收入差距是否造成影響，三、有鑑於財政上絕對財政中央集權與財政地方分權可能是造成城鄉收入差距擴大的兩個極端，不同於過去的相關研究，本研究認為財政分權與城鄉收入差距間，可能存在非線性的關係，因此在本研究中變數中加入財政分權平方項，對於這樣的假設進行檢測。 本研究針對中國大陸1995至2008年29個省市地區資料，以雙因子固定效果模型進行研究。根據實證結果顯示，在財政自主分權指標對於城鄉收入差距的影響層面，在財政自主小於臨界水準時，隨著財政自主逐漸提高，將會縮小城鄉收入差距；但其負向效果將隨著財政自主提高後逐漸減弱，到達某個臨界水準後，財政自主對於城鄉收入差距的影響將由負轉正。意即中國大陸地方政府財政自主分權指標與城鄉收入差距間呈現非線性的關係，而是呈現類似正U型的曲線。在其他影響城鄉收入差距的變數方面上，本研究發現二元經濟結構係數、財政支出分權指標對於城鄉收入差距有正向的影響，而科技技術財政支出對於城鄉收入差距有負向的影響。透過本研究之結果，可以解釋財政分權對於城鄉收入差距影響結論不一致的說法，進而瞭解縮小地區性城鄉收入差距的最適財政分權程度。 / This purpose of this study is to investigate the changes in mainland China’s regional urban-rural income differential and its determinants during the period of 1995 to 2008. This study uses provincial-level data to analyze whether or not fiscal decentralization provides a positive effect for urban-rural income differential.In order to examine the role of fiscal decentralization in China's regional urban-rural income differential, this study establishes two empirical models with the square term of fiscal decentralization as an independent variable. After we estimate the two-way fixed-effects model of the urban-rural income differential equation, the empirical result shows the financial autonomy of local governments in China and regional urban-rural income differential relationship is nonlinear, but the show is U-shaped curve.

近年來，全球氣候變遷問題已嚴重影響人類生活，而世界各國也逐漸意識到已開發國家和開發中國家必須共同合作以解決此問題。京都議定書中的清潔發展機制 (CDM) 即是讓已開發國家與開發中國家共同實踐減量目標的一種彈性減量機制，然而過去文獻對於其減排成效的看法並不一致。有鑒於此，本文以參與CDM計畫的20個開發中國家和16個已開發國家為研究對象，探討CDM計畫對其2003至2008年二氧化碳減量之影響。根據兩階段最小平方法之固定效果模型的實證結果顯示，CDM計畫能減少開發中國家的二氧化碳排放量，但經認證的排放減量額度 (CERs) 有被過量核發之現象；另一方面，CDM計畫對已開發國家的減排效果則無影響。 / In recent years, global climate change problem has affected humans’ life badly. Therefore, it is gradually realized that the developed countries and developing countries have to cooperate to solve the problem. Clean Development Mechanism (CDM) is one of the flexibility mechanisms defined in the Kyoto Protocol, and it allows the developed countries, in cooperation with developing countries, to fulfill the emission-reduction targets. However, the emissions abatement effects of CDM in the literatures are diverse. Accordingly, this paper uses 20 developed countries and 16 developing countries as an empirical case to examine the impact of CDM on carbon dioxide emissions abatement from 2003 to 2008. According to fixed effects two-stage least squares, CDM projects reduced the carbon dioxide emissions of developing countries, but the certified emissions reductions (CERs) were excessively issued. On the other hand, CDM projects didn’t have an impact of emissions abatement on developed countries.

近年來，隨著中國大陸經濟快速的成長，中國大陸房地產市場也隨之蓬勃發展，然而，近期中國大陸房地產價格的節節高漲，產生了房地產過熱的警訊，而區域間房地產價格的差異與不均，也成為各地區經濟發展的重要阻礙。所以，如何合理的調控房地產價格，使房地產市場能穩定成長並與經濟發展相輔相成，成為中國大陸中央政府必須持續關注與適時妥善處理的問題。 本文運用1999年至2010年中國大陸31個省市地區商品房平均銷售價格和影響房價的經濟相關變數的追蹤資料，運用雙因子固定效果模型進行實證研究。研究結果發現：中國大陸各地區財政分權程度對各地區房地產價格為非線性的關係，呈現U型的曲線。意即，存在一個財政分權的臨界值可以使房價達到最小的情況。建議中央政府應透過調整各地區的財政分權程度，來避免因財政分權不均而產生財政資源不均問題，造成房地產價格的波動。並加強對地方政府的財政預算與財政收入的監督與管制，以抑止「土地財政」的行為。 / With the economic growth, the real estate market is booming in China recently. But the overheating real estate price and the difference of real estate price between region and region become the important impediment to regional economic development in China. Therefore, the central government how to control the real estate price is an immense problem. By using the panel data of average selling price of commercialize buildings and the economic variables of 31cities in China between 1999 and 2010, the study uses two-way fixed effects model to investigate the effect of fiscal decentralization on the real estate price in China. The empirical analysis’ result shows that the fiscal decentralization provides a non-linear effect on the real estate price, it presents the U-shaped curve. In other words, there are a degree of fiscal decentralization can make the real estate price to reach the minimum. According to results, we propose to take some policies. The central government should adjust the degree of fiscal decentralization in each region, in order to avoid the local government financial problem to lead to rise the real estate price.

This dissertation analyses the effects of current fisheries practices and management regulations of the green spiny lobster (Panulirus gracilis) in the Eastern Tropical Pacific Region (ETP). P. gracilis has reached a critical state in the ETP. Country-based studies report that between 60 and 98% of lobsters caught in the wild are under the minimum landing size (MLS). This means that spiny lobsters are being extracted before reproducing and contributing to the replenishment of interconnected populations. The recovery of green spiny lobster populations in the ETP and the future maintenance of a sustainable fishery will depend on effective management decisions and on taking in account environmental factors that influence the population dynamics of the lobsters. In the first study (Chapter 2), the B52 Spiny Lobster individual based simulation model was used for conducting a population viability analysis to quantify the effect of current fishing practices and the effect of varying management regulations on minimum landing size (MLS) and fishing effort. The best suit of regulations to maintain the highest abundance, production of offspring and catch is to protect juveniles and egged females, and to establish a MLS that assures the reproduction of individuals before being extracted. This study revealed regional variations, however the patterns and the causes for variation were not yet clear. This led to the next chapters in this dissertation. In Chapter 3, I used a meta-analysis to explore regional lobster variability by comparing published studies from the ETP. The objective was to identify patterns of variation related to geographic and environmental factors of the region that can inform the establishment and evaluation of coordinated regulations. Morphological relationships showed to be more variable at northern latitudes, where the mean annual sea surface temperatures are higher than at lower temperatures at the Equator. In terms of management, MLS regulations should be adapted accounting for the effect of sea surface temperature and its variation. Additionally, it was observed that monitoring methodologies are not standardized within the region and even in some cases, neither within countries. Furthermore, in most places monitoring of the spiny lobster fishery happens sporadically, only in Galapagos takes place every year. Identifying patterns of variations can improve the accuracy of prediction models which can help to explore, design, and apply more effective management measures, as well as promote regional coordination to support the recovery and maintenance of spiny lobsters. In Chapter 4, I contrast current Ecuadorian minimum landing size (MLS) regulation to lobster empirical measurements within Ecuador in order to recognize potential pitfalls for management enforcement. I used linear regression and multiple regression models with the objective of identifying potential relative size variations of the individuals caught in the wild over time and in the different fishing areas in Ecuador, as well as to analyse the effect of locality, sex, age and mean SST on the tail length/total length ratio. Morphological relations were significantly different among sexes, in time and by all sites. Most importantly, this study shows that current minimum size regulations are not applicable to all sites. Additionally, I found that water temperature has a significant effect on morphological relationship variations. However, it was not the main site-specific variable responsible for explaining such variations. In general, this work emphasizes the need for length data collection standardization and the consideration of temporal and spatial variation implications in national and regional fishery management planning, enforcement and evaluation.

Submitted by Felipe Barbieri Beraldi (felipe.beraldi@gmail.com) on 2017-12-18T21:39:14Z No. of bitstreams: 1 Felipe Beraldi - Dissertação ODS_entrega_final.pdf: 1400664 bytes, checksum: 1589d961dd3b86a88a8f5c388e1cb5ab (MD5) / Rejected by Thais Oliveira (thais.oliveira@fgv.br), reason: Prezado Felipe, boa noite. Para que possamos aprovar seu trabalho, é necessário que inclua a página onde contém o nome do aluno na parte superior, o título do trabalho e ao lado direito inferior da página o texto "Dissertação apresentada à Escola de Economia de São Paulo da Fundação Getulio Vargas, como requisito para obtenção do título de Mestre em Economia." logo abaixo o campo de conhecimento, data da aprovação, Banca examinadora (com os nomes dos professores que participaram). Esta seria a quarta página, logo após a ficha catalográfica. Qualquer dúvida, entre em contato: mestradoprofissional@fgv.br ou ligue 3799-7764 Att, Thais Oliveira on 2017-12-18T22:54:42Z (GMT) / Submitted by Felipe Barbieri Beraldi (felipe.beraldi@gmail.com) on 2017-12-19T01:00:16Z No. of bitstreams: 1 Felipe Beraldi - Dissertação ODS_entrega_final.pdf: 1665540 bytes, checksum: e6c6be5e60cde0a3e24d2a65b544213d (MD5) / Approved for entry into archive by Thais Oliveira (thais.oliveira@fgv.br) on 2017-12-19T21:13:44Z (GMT) No. of bitstreams: 1 Felipe Beraldi - Dissertação ODS_entrega_final.pdf: 1665540 bytes, checksum: e6c6be5e60cde0a3e24d2a65b544213d (MD5) / Made available in DSpace on 2017-12-20T12:05:42Z (GMT). No. of bitstreams: 1 Felipe Beraldi - Dissertação ODS_entrega_final.pdf: 1665540 bytes, checksum: e6c6be5e60cde0a3e24d2a65b544213d (MD5) Previous issue date: 2017-12-06 / O crescimento expressivo da frota de veículos no Brasil nas últimas décadas e, consequentemente, a intensificação do tráfego e do número de acidentes nas cidades e rodovias do País motivou a reformulação da legislação nacional de trânsito, com destaque para a intensificação das regras e punições aos indivíduos que combinam a condução de veículos automotores com a ingestão de bebidas alcóolicas. Neste contexto, surgiu no Estado de São Paulo a Operação Direção Segura (ODS), que consiste em grandes operações de fiscalização da popularmente conhecida Lei Seca (instituída pela Lei 11.705 de 19 de junho de 2008), realizadas por um conjunto de entes públicos. O objetivo desta pesquisa é avaliar os impactos da ODS sobre a mortalidade no trânsito terrestre dos municípios paulistas. Para evidenciar a relação entre a ODS e a mortalidade no trânsito foi implementado um estimador de diferenças-em-diferenças com efeitos fixos, utilizando-se como variável dependente o número de óbitos no trânsito dos municípios e outras variáveis de controle que procurarão captar diferentes características das regiões, que podem afetar a evolução do número de mortes no trânsito. A estratégia de identificação tem como base a ação das superintendências regionais da ODS em um grupo específico de municípios, onde a fiscalização no âmbito destas operações é relativamente mais elevada (ou seja, tais municípios compõe o grupo de tratamento). Os resultados encontrados mostram que a ODS impacta negativamente o número de óbitos no trânsito terrestre, tanto pela ótica do número de operações, quanto pela ótica da quantidade de veículos fiscalizados. Assim, a efetividade sobre a redução da mortalidade no trânsito é um forte argumento para o investimento do Governo do Estado de São Paulo na ampliação deste programa de fiscalização da Lei Seca. / The significant growth of the vehicle fleet in Brazil in the last decades and the consequent increase of traffic and the number of accidents in the cities and highways of the country motivated the reformulation of the national traffic legislation, highlighting the strengthening of rules and punishments to individuals who combine driving motor vehicles with intake of alcoholic beverages. In this context, Operação Direção Segura (ODS) was created in the State of São Paulo, which consists of large supervision operations of the popularly known Dry Law (instituted by Law 11.705 of June 19, 2008), carried out by a group of public entities. The objective of this research is to evaluate the impacts of ODS on the mortality in the land traffic of the municipalities of São Paulo. In order to show the relationship between ODS and traffic mortality, a difference-in-difference estimator with fixed effects was implemented, using as a dependent variable the number of traffic deaths in the municipalities and other control variables, that will seek to capture different characteristics of the regions which may affect the evolution of the deaths’ number in traffic. The identification strategy is based on the action of the ODS's regional superintendencies in a specific group of municipalities, where supervision in the field of operations is relatively higher (what means that these municipalities make up the treatment group). The results show that the ODS has a negative impact on the number of land traffic deaths, both from the point of view of the number of operations and from the point of view of the number of vehicles inspected. Thus, the effectiveness of reducing the mortality in traffic is a strong argument for the investment of the State Government of São Paulo in the expansion of this supervision program under the Dry Law.

Classic parametric statistical tests, like the analysis of variance (ANOVA), are powerful tools used for comparing population means. These tests produce accurate results provided the data satisfies underlying assumptions such as homoscedasticity and balancedness, otherwise biased results are obtained. However, these assumptions are rarely satisfied in real-life. Alternative procedures must be explored. This thesis aims at investigating the impact of heteroscedasticity and unbalancedness on effect sizes in two-way fixed-effects ANOVA models. A real-life dataset, from which three different samples were simulated was used to investigate the changes in effect sizes under the influence of unequal variances and unbalancedness. The parametric bootstrap approach was proposed in case of unequal variances and non-normality. The results obtained indicated that heteroscedasticity significantly inflates effect sizes while unbalancedness has non-significant impact on effect sizes in two-way ANOVA models. However, the impact worsens when the data is both unbalanced and heteroscedastic. / Statistics / M. Sc. (Statistics)

This thesis if focused on the application of methods of robust econometrics to real economic data. We focuse on the issuies of international trade in Czech Republic and the problem of employment and growth of small businesses in Europe. We also focues on estimation of panel data by classical approaches (least squares, fixed effects, GMM) and bzy robust techniques. The first part of dissertation focuses on analyzing determinants of FDI in Czech manufacturing industry. The aim is to estimate a model where the stock of FDI is expressed as a function of several economic factors (K/L, profit per worker, R&D, Balassa index and others). We estimate these models by OLS, fixed effects and GMM. With regard to ambiguous results we used least trimmed squares as a diagnostic tool for detection of outliers. Elimination of two polluting industries out of the data set brings certain improvement in significance of some factors. The second part of dissertation we focus on an estimation of models of employment and net production in 28 European countries for small businesses as a function of economic and institutional variables by special technique of estimation. We describe robust version of within group fixed effects estimation. The aim of paper is to estimate a set of models and to test the properties of estimator. With...

Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-04-03T19:07:52Z No. of bitstreams: 1 filipesimoesribeiro.pdf: 387633 bytes, checksum: 63981ac15a1c312f9235199284ae77f5 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-04-03T19:11:32Z (GMT) No. of bitstreams: 1 filipesimoesribeiro.pdf: 387633 bytes, checksum: 63981ac15a1c312f9235199284ae77f5 (MD5) / Made available in DSpace on 2017-04-03T19:11:32Z (GMT). No. of bitstreams: 1 filipesimoesribeiro.pdf: 387633 bytes, checksum: 63981ac15a1c312f9235199284ae77f5 (MD5) Previous issue date: 2009-12-18 / FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais / Na área de Finanças Corporativas, há uma vasta literatura que trata dos determinantes do endividamento das empresas. Entretanto, os estudos que analisam essa escolha têm se focado mais nas diferenças entre a utilização de capital próprio e de terceiros, enquanto a literatura a respeito da estrutura (maturidade e fonte) desse endividamento é relativamente menos abundante. Visto isso, este estudo tem como objetivo promover uma investigação empírica acerca das características que influenciam a escolha da maturidade da dívida (dívidas de curto ou longo prazo) e da fonte de financiamento (utilização de oferta pública ou colocação privada de títulos). Para tanto, é utilizada a metodologia de Dados em Painel, a fim de se considerar simultaneamente as dimensões tempo e seccional, auxiliada pela abordagem de equações simultâneas, tendo em vista haver na literatura indicações acerca da endogeneidade de alguns regressores. As informações necessárias à condução do estudo são levantadas para empresas brasileiras que possuem suas ações listadas na Bolsa de Valores de São Paulo (BOVESPA) e na Sociedade Operadora do Mercado de Ativos (SOMA) a partir do banco de dados da Economatica®. Os resultados mostram que empresas brasileiras mais maduras e estabelecidas no mercado tendem a utilizar seus recursos internos como forma de financiar projetos, conforme sugere a Teoria da Pecking Order. Entretanto, quando estas procuram recursos externos, preferem a utilização de fontes privadas de dívidas, como os bancos, importante fonte de recursos para as empresas brasileiras. Pode-se dizer também que existem fortes indicações do processo conhecido como “colaterização da dívida”, principalmente quando se tratam de fontes privadas e recursos de curto prazo. Outro resultado interessante é que a decisão sobre a maturidade e a fonte de financiamento é também influenciada pelas “janelas de oportunidade”, provavelmente porque o maior volume de transações aumenta a liquidez do mercado financeiro, reduzindo o custo da dívida pública em relação ao da dívida privada. / In corporate finance field, there is a vast literature about the capital structure determinants. However, studies have focused on the differences between equity and debt, while the literature about debt structure (maturity and source) is relatively scarce. As such, this study aims to promote empirical research about characteristics that influence debt maturity choice (short or long term debt) and funding source (public offering or private placement). Therefore, Panel Data Method is used in order to consider both time and cross-sectional dimensions, aided by simultaneous equations approach, as literature indicates the presence of regressors endogeneity. Sample data, regarding Brazilian companies listed on São Paulo Stock Exchange (BOVESPA) and Sociedade Operadora do Mercado de Ativos (SOMA), were collected from Economatica® database. The results show that mature and well-established Brazilian firms tend to prefer internal resources when financing projects, as suggested by Pecking Order Theory. However, when they seek external resources, private debt sources, such as banks, are important for Brazilian companies. We can also say that there are strong indications of the process known as "collateralized debt", especially when it comes from private sources and short-term funds. Another interesting result is the debt structure decision is also influenced by "opportunities windows", probably because it increases financial markets liquidity, reducing the cost of public debt compared to private debt.

Submitted by Denísio Liberato (denisioliberato@bb.com.br) on 2012-07-23T15:29:29Z No. of bitstreams: 1 TESE_versão_final_23072012.pdf: 1132720 bytes, checksum: 866d5e254e7f90dedcaaf1e8e4ac25ab (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2012-07-23T15:38:45Z (GMT) No. of bitstreams: 1 TESE_versão_final_23072012.pdf: 1132720 bytes, checksum: 866d5e254e7f90dedcaaf1e8e4ac25ab (MD5) / Made available in DSpace on 2012-07-23T15:45:40Z (GMT). No. of bitstreams: 1 TESE_versão_final_23072012.pdf: 1132720 bytes, checksum: 866d5e254e7f90dedcaaf1e8e4ac25ab (MD5) Previous issue date: 2012-06-22 / O objetivo central desta tese é colaborar com a literatura de finanças internacionais, abordando a discussão sobre os limites 'toleráveis' de endividamento aos quais os governos estão submetidos, bem como, sobre os fatores que afetam a forma como os países denominam suas dívidas no mercado internacional. A análise dos limites de endividamento é baseada num modelo onde crises de dívida auto-realizáveis podem ocorrer quando o nível de endividamento encontra-se em determinado intervalo. Uma vez nesta região, a dívida pode (ou não) ser rolada e, caso os credores não concedam novos empréstimos, a crise torna-se, de fato, uma profecia auto-realizável. Os resultados encontrados indicam que o limite de endividamento, além de bastante persistente, é muito dependente da razão dívida/PIB, bem como, dos históricos de inflação, crises bancárias e de defaults (ou reestruturações) de dívida soberana. Posteriormente, é feita uma aplicação do modelo estimado aos países da periferia do euro, na qual os resultados sugerem que países como Portugal e Grécia, mesmo após a adoção da moeda única, apresentam dificuldades em administrar os seus níveis de endividamento. Em conjunto, os resultados apresentados sugerem que quanto pior o histórico macroeconômico, menor será a capacidade do país 'tolerar' dívidas. Em relação à denominação da dívida, o estudo procura identificar em que medida a volatilidade da taxa de câmbio real efetiva, controlada por diversos fatores, impacta a forma como países se endividam no mercado internacional. Os resultados indicam que a baixa volatilidade cambial é condição fundamental para que a moeda doméstica seja utilizada em transações internacionais. Além disso, porte econômico, estabilidade de regras, respeito aos contratos e ampla liquidez dos mercados financeiros domésticos, são fatores que contribuem para a aceitação de uma moeda nos contratos de dívida internacional. Evidências adicionais do estudo sugerem que a ampla liquidez internacional, observada principalmente nos anos 2000, foi incapaz de ampliar de maneira significativa o número de moedas utilizadas no mercado internacional de dívidas. Ainda em relação a este tema, a tese analisa os primeiros passos da economia brasileira no sentido de alongar o perfil da dívida pública interna, por intermédio da emissão de títulos denominados em reais no mercado internacional. / The aim of this dissertation is to collaborate with the international finance literature, addressing the debate on the "acceptable" sovereign debt limits debt, as well as addressing on debt denomination in the international market. The analysis of debt limits is based on a model in which self-fulfilling debt crises can occur when the debt level reaches a certain range. Once this range is reached, the debt may (or may not) be rolled over and, if creditors do not grant new loans, the crisis becomes, in fact, a self-fulfilling prophecy. The results indicate that the indebtedness limit, besides being persistent, depends highly on the debt/GDP ratio, as well as on historical inflation, banking crises and default (or restructuring) of sovereign debt. Subsequently, an application of the estimated model is made to peripheral countries of the Euro Zone. The results suggest that countries like Portugal and Greece, even after the adoption of the single currency, have difficulties in managing their debt levels. The results also suggest that the worse the macroeconomic history, the lower the country's ability "to tolerate" debt. In relation to debt denomination, the study seeks to identify to what extent the volatility of real effective exchange rate, controlled by several factors, have an influence on how countries gain access to the international bond market. The results indicate that low exchange rate volatility is a fundamental condition for debt denominated in local currency in international markets. Moreover, the size of the economy, stability of regulations, enforcement of contracts and ample liquidity in domestic financial markets are factors that contribute to the acceptance of a currency in international debt contracts. Additional evidence of the study suggests that the broad international liquidity, mainly observed in the 2000s, was unable to expand significantly the number of currencies used in international debts. Still regarding this issue, the dissertation analyzes the first steps of the Brazilian economy in order to extend the profile of its public debt through the issuance of bonds denominated in Reais in the international market.