This paper investigates the determinants of sovereign debt crises by using cross-country data from 1977 to 2010. In particular, I focus on the structure of sovereign debt by analysing the debt composition (domestic versus external), maturity structure (short-term versus long-term), composition type (bank loans versus bond) and currency denomination (domestic currency versus foreign currency) of debts. I also assess whether the previous history of banking and currency crises affect the likelihood of a sovereign debt crisis. The results suggest that both the structures of debt and the past history of other financial crises are important determinants of debt crises. The results are robust when using alternative measures to understand the risks of sovereign debt. I also investigate the impacts of debt structure and past financial crises history on the levels and changes of foreign and local currency long-term debt credit ratings.

This study investigates the effect of the European sovereign debt crisis on alternative capital sources of public companies from France, Germany, Switzerland and the United Kingdom. Specifically, it studies which financing choices expose a company to potential bank lending and demand shocks during the Euro crisis. To this end, the study employs average treatment effect estimations and difference-in-differences regressions to show whether financially more (less) constrained companies use more (less) alternative capital than matching control companies. I find that two of three financially more constrained company groups show higher use of alternative capital sources than matched companies due to evidence for bank lending shocks in Germany and France. Companies with a high financial dependence behave against the expectation because of high cash holdings and lower need for alternative capital. Companies with high cash holdings showed signs of a demand shock. Swiss and British companies appear to be much less affected by the Euro crisis because of weaker financial ties with the most affected southern Eurozone economies.

The purpose of this thesis is to identify key factors underlying exchange rate developments during the European sovereign debt crisis by examining the impact of credit rating news, published by the three leading credit rating agencies, on conditional returns and volatility of EUR/USD (direct quotation) exchange rate. Empirical results highlight the importance of interest rate differential and volatility index of options exchange in explaining EUR/USD exchange rate volatilities. Downgrade announcements by Standard & Poor’s as well as watch revisions by Fitch Ratings had a detrimental impact on the value of Euro, leading to a subsequent Euro depreciation over the period under consideration (January 2009 – April 2012).

This research aims to explain mechanisms of the new twin crisis, the influence of such a crisis on European integration, and identify indicators that can predict such a twin crisis. First, the old and the new twin crisis will be explained and the necessity of this research will be elaborated upon. Hereafter, the main mechanisms of the new twin crisis will be identified based on a literature review. From this literature review a set of indicators, accompanied by certain thresholds, will be created that can indicate that a twin crisis is about to happen. These indicators will be used to analyse data from 1970 until 2015 to asses whether this new twin crisis has occured in the past and what its political consequences were. The constructed mechanism to explain the new twin crisis and the list of indicators will be put to the test by conducting an indepth case study of Italy and its risk of encountering a new twin crisis. Based on the model that links the new twin crisis to political consequences, the case study attempts to link the new twin crisis to the European integration project. This research will lay the foundation for the creation of predictive models for the new twin crisis and provide insights in one of the main destabilisers for European integration. It therefore establishes a set-up and lay-out for future research in this specific field.

La tesi intende fornire un’analisi critica dello sviluppo dell’Unione Economica e Monetaria (UEM) alla luce della crisi del debito sovrano. A partire dal 2009 sono state progressivamente attuate diverse riforme che hanno limitato l’autonomia degli Stati Membri nell’esercizio delle loro prerogative sovrane ed hanno fornito alle istituzione europee nuovi poteri nell’ambito di diverse politiche. La ricerca investiga i trasferimenti di sovranità in corso dal livello nazionale a quello europeo focalizzandosi sulle trasformazioni sia dell’Unione Economica che di quella Monetaria. Nel primo capitolo la tesi analizza i carattere originali dell’UEM dalla sua creazione fino alla ratifica del trattato di Lisbona. Il secondo capitolo considera la creazione dei meccanismi di stabilizzazione introdotti per salvare i paesi a rischio default e garantire la stabilità finanziaria della zona euro nel suo complesso. Il terzo capitolo studia gli interventi della Banca Centrale Europea durante la crisi, analizzando in che modo la necessità di proteggere la moneta unica abbia sviluppato il ruolo della BCE ed esteso il suo mandato. Il quarto capitolo studia la riforma della governance economica tramite il rafforzamento della disciplina fiscale degli Stati Membri. Il quinto capitolo analizza la riforma della governance bancaria e la creazione dell’Unione Bancaria, che è stata finalmente introdotta per interrompere il circolo vizioso tra crisi del debito e crisi bancaria. Nello sviluppo della tesi le diverse riforme verranno analizzate dal punto di visto della loro legalità, efficacia e legittimità democratica. / The thesis aims to provide a critical analysis of the development of the Economic and Monetary Union (EMU) in the light of the sovereign debt crisis. Since 2009 a number of measures have been progressively implemented, which have limited the autonomy of Member States in exercising their sovereign prerogatives and have granted EU institutions new powers in key policy areas. The research will investigate the ongoing transfers of sovereignty from national to European level focusing on the transformation of both the Economic and the Monetary Union. In the first chapter, it will consider the original features of the EMU, from its introduction at the intergovernmental conference of Maastricht until the ratification of the Lisbon Treaty. The second chapter will focus on the creation of rescue and stabilization mechanisms put in place to save Member States from imminent default and to ensure the financial stability of the Eurozone as a whole. The third chapter will study the interventions of the European Central Bank during the crisis considering how the necessity to protect the single currency has developed its role and extended its mandate. The fourth chapter will focus on the reform of the economic governance through the fiscal discipline of Member States. The fifth chapter will take into consideration the reform of the banking governance and the establishment of the European Banking Union, which was finally introduced to stop the vicious cycle between the debt and banking crisis. By developing the thesis, the analysis will consider each reform from the point of view of its legality, effectiveness and democratic legitimacy.

In this thesis, we aim to find the effect of economic crisis announcements arising from the US subprime mortgage crisis and European sovereign debt crisis on the market volatility in theBRIC countries. We implement a GARCH model in order to compare the effect of individual news announcements and find that the US crisis had a bigger impact on BRIC market volatility than the European crisis. Of particular note, we find the US bailout had a higher impact than the failure of Lehman Brothers or any European crisis dates that were considered. We then examine the volatility transmission mechanism by implementing a VAR model to create a spillover index. Following, we apply a rolling window approach, creating spillover plots which show that both return and volatility spillovers are affected by crisis announcements. The importance of our results are related to investor decision making, particularly the relationship between market return and risk in developing country markets. Far to our knowledge, no recent literature has compared the two crises in the way we have nor with the datasets we have used.

The first part of this dissertation examines the presence of the financial contagion across European stock markets with respect to the Greece sovereign debt crisis by estimating the time-varying conditional correlations of stock returns between Greece and other European countries over 2001 to 2012. We find that the correlations vary over time and reach the peaks in the late 2008 during theU.S.subprime crisis, and in the beginning of 2010 of the height of European debt crisis. Further, the correlations between stock index returns of Greece and Spain, France, Ireland, Netherlands are significantly increased by Greek sovereign credit rating downgrade announcements. The second part of this dissertation examines the correlations of gold, dollar and U.S. stock returns over 2001 to 2012 using ADCC-GARCH model. The conditional correlations of gold-dollar returns are negative during all sub-sample periods and significantly increase in magnitude during both subprime crisis and sovereign debt crisis. The conditional correlations of gold-stock returns are positive on average over time. However, gold-stock correlation falls below zero during subprime crisis and sovereign debt crisis. Gold-stock correlation is significantly negatively affected by positive CPI announcements. And gold-dollar correlation is significantly negatively affected by negative GDP announcements and positive unemployment announcements. The effects of macroeconomic announcements are stronger during economic recessions.

In 2009 the sovereign debt crisis started in the European Union. Every member state was involved in the financial turmoil, in particular Portugal, Ireland, Italy, Greece, and Spain. Why were these countries effected more so? Were they still committed to core ideas of the European Union? This paper will review this topic through the perspective of Portugal. Being a former colonial power, once having an authoritative government, and now a full-fledged member of the European Union, Portugal has a unique story to tell about the crisis at hand. This paper will evaluate different European Union principles involving gender equality, tertiary education, politics, and economics while comparing how Portugal ranks in Europeanization to the European Union specifically during the sovereign debt crisis. This paper will conclude by summarizing these topics, analyzing triumphs and setbacks, and hypothesizing Portugal's future in regard to their Europeanization of European Union standards and the current sovereign debt crisis the country faces today.

This paper focuses on stock markets, including Portugal¡BItaly¡BIreland¡BGreece and Spain, and these are named PIGS by economists. Furthermore, we add the other three countries, U.S.A.¡BU.K. and Germany in this paper for investigating the dependence structure in the stock markets between these countries during the period 2001-2011. We implement a regime-switching copula model based on Gaussian copula, which uses a GARCH specification for the marginal distributions and the Gaussian copula for the joint distribution. Our method combines copulas and regime-switching models to demonstrate dependence sructures in stock markets between these countries. Based on this paper, we have two reports for international investors. First, if the dependency changes over time, the returns of portfolio diversification may be prone to diversification disasters, and the international investors' degrees of diversification can cause higher systemic risk in the period of financial crisis. Second, the phonomenon of the asymmetric dependence exists in financial markets, and we conclude that non-diversification may be better than diversification in the period of financial crisis.

The purpose of this thesis is to examine the effects of macroeconomic  indicators on the government debt of Portugal, Italy, Ireland, Greece and Spain (PIIGS), based on the data from 1990 to 2010 and employed a panel data model. The research finds that the macroeconomc conditions of the PIIGS are all deteriorated to some extent, and these deteriorations lead the accumulation of government debt. The expansionary fiscal policy is an important factor that accounts for the high debt ratio of the PIIGS. On the other hand, the discrepancy between the unified monetary policy and the separated fiscal policy obstructs the adjustment mechanism by the individual government, and leads the exchange rate and interest rate instruments not efficient.