Can a negative shock to sovereign ratings invoke a vicious cycle of increasing government bond yields and further downgrades, ultimately pushing a country toward default? The narratives of public and political discussions, as well as of some widely cited papers, suggest this possibility. In this paper, we will investigate the possible existence of such a vicious cycle. We find no evidence of a bad long-run equilibrium and cannot confirm a feedback loop leading into default as a transitory state for all but the very worst ratings. We use a bivariate semiparametric dynamic panel model to reproduce the joint dynamics of sovereign ratings and government bond yields. The individual equations resemble Pesaran-type cointegration models, which allow for valid interference regardless of whether the employed variables display unit-root behavior. To incorporate most of the empirical features previously documented (separately) in the literature, we allow for different long-run relationships in both equations, nonlinearities in the level effects of ratings, and asymmetric effects in changes of ratings and yields. Our finding of a single good equilibrium implies the slow convergence of ratings and yields toward this equilibrium. However, the persistence of ratings is sufficiently high that a rating shock can have substantial costs if it occurs at a highly speculative rating or lower. Rating shocks that drive the rating below this threshold can increase the interest rate sharply, and for a long time. Yet, simulation studies based on our estimations show that it is highly improbable that rating agencies can be made responsible for the most dramatic spikes in interest rates.

We introduce a novel currency risk measure based on American Depositary Receipts (ADRs). Using an augmented ADR pricing model, we exploit investors’ exposure to potential devaluation losses to derive an indicator of currency risk. Using weekly data for a sample of 807 ADRs located in 21 emerging markets over the 1994–2014 period, we find that a deterioration in the fiscal balance and higher inflation increase currency risk. Interaction models reveal that the fiscal balance and inflation drive the determination of currency risk for countries with poor sovereign rating, low foreign reserves, low capital account openness and managed float regimes.

• In summer 2018 the cyclical upswing of the world economy is not over, but it appears to be fragmenting. While economic activity in the European Union has lost steam, the upswing in the US has gained pace, and growth in China appears to be robust. • Markets for commodities as well as for capital are at present strongly affected by political movements: oil prices are more than 50% higher than one year ago, as the US exit from the Iran nuclear deal puts the long run oil supply from Iran at risk, and the strongly expansionary US tax reform explains the rise in US long run interest rates. . • Uncertainties about the future international trade system cause firms to slow down or even reverse the globalization of value chains. As an early consequence, world trade in the second half of 2018 and in 2019 will expand at much slower rates than during 2017. • In the euro area growth slowed in the first quarter 2018, due to weaker investment activity in France and Italy and, more importantly, a fall in exports in all larger euro area economies except Spain. However, the drivers of the upswing such as low interest rates for credit and expanding real incomes will still be supportive in the near future, and fiscal policies will be slighly more expansionary. But a slowdown in world trade will dent export growth as well as corporate profits. All in all, we expect GDP growth in the euro area to go down from 2.4% in 2017 to 2.1% in 2018 and to 1.7% in 2019 – a forecast that will only be realized if damages to the international trade system are limited and if the European sovereign debt crisis does not come back. • While wage inflation has been slowly increasing during the past quarters to about 2%, a clear upwards trend of core consumer price inflation is still not detectable. The recent jump of the headline rate to 1.9% is due to higher oil prices. Our forecasts for 2018 and 2019 are close, although still below, 2%.

The BCBS discussion paper on the regulatory treatment of sovereign exposures addresses a so far hardly touched topic as concerns capital regulation. While the regulatory framework has been changed substantially over recent years including the establishment of the European Banking Union, risk weights on sovereign exposures have remained mostly unchanged and sovereign exposures of banks benefit from a favourable capital treatment. This applies despite the fact that the recent European sovereign debt crisis has revealed the potential of a doom loop between bank and sovereign risk and demonstrated that sovereign exposures are by no means “risk-free”. The paper is thus an important proposal how to change the risk evaluation of banks’ sovereign exposures.

This paper studies the role of political factors for determining the impact of banking sector distress on sovereign bond yield spreads for a sample of 19 emerging market economies in the period 1994–2013. Using interaction models, I find that the adverse impact of banking sector distress on sovereign solvency is less pronounced for countries with a high degree of political stability, a high level of power sharing within the government coalition, a low level of political constraint within the political system, and for countries run by powerful and effective governments. The electoral cycle pronounces the bank risk–sovereign risk transfer.

We develop a model of compensation structure and asset risk choice, where a risk-averse manager is compensated with salary, equity and inside debt. We seek to understand the joint implications of this compensation package for managerial risk-taking incentives and credit spreads. We show that the size and seniority of inside debt not only are crucial for the relation between inside debt and credit spreads but also play an important role in shaping the relation between equity compensation and credit spreads. Using a sample of U.S. public firms with traded credit default swap contracts, we provide evidence supportive of the model's predictions.

This paper analyzes the link between political factors and sovereign bond holdings of US investors in 60 countries over the 2003–2013 period. We find that, in general, US investors hold more bonds in countries with few political constraints on the government. Moreover, US investors respond to increased uncertainty around major elections by reducing government bond holdings. These effects are particularly significant in democratic regimes and countries with sound institutions, which enable effective implementation of fiscal consolidation measures or economic reforms. In countries characterized by high current default risk or a sovereign default history, US investors show a tendency towards favoring higher political constraints as this makes sovereign default more difficult for the government. Political instability, characterized by the fluctuation in political veto players, reduces US investment in government bonds. This effect is more pronounced in countries with low sovereign solvency.

I study the relation between internal governance and creditor governance. A deterioration in creditor governance may increase the agency costs of debt and managerial opportunism at the expense of shareholders. I exploit the introduction of credit default swaps (CDS) as a negative shock to creditor governance. I provide evidence consistent with shareholders pushing for a substitution effect between internal governance and creditor governance. Following CDS introduction, CDS firms reduce managerial risk-taking incentives relative to other firms. At the same time, after the start of CDS trading, CDS firms increase managerial wealth-performance sensitivity, board independence, and CEO turnover performance-sensitivity relative to other firms.

We investigate credit risk co-movements and contagion in the sovereign debt markets of 17 industrialized countries during the period 2008–2012. We use dynamic conditional correlations of sovereign credit default swap spreads to detect contagion. This approach allows us to separate contagion channels from the determinants of simple interdependence. The results show that, first, sovereign credit risk co-moves considerably, particularly among eurozone countries and during the sovereign debt crisis. Second, contagion varies across time and countries. Third, similarities in economic fundamentals, cross-country linkages in banking and common market sentiment constitute the main channels of contagion.

The global financial crisis of 2007-08 and its adverse effects on economic activity have put financial stability back on the agenda of both researchers and policymakers. The regulatory debate has since then revolved around the question which reforms are needed to effectively reduce the likelihood and costs of future systemic financial crises. By now, the debate has led to an update of regulatory frameworks on the national, European, and global level. This thesis contributes to the empirical research on the risks to financial stability and to the debate on the regulation of international financial markets. It builds on some of the key insights from the recent global financial crisis and the respective policy responses. Chapter 1 of the thesis analyzes the reasons behind the strong co-movements of credit risk in sovereign bond markets during the financial crisis and the subsequent euro area debt crisis. In addition, it investigates to what extent high co-movements might be the outcome of contagion and through which channels contagion occurs. Chapter 2 investigates how uncertainty in banking affects banks’ loan supply, and it analyzes if the lending behavior is heterogeneous across different types of banks. Turning to the analysis of actual policies, Chapter 3 studies the effect of liquidity provided by the Eurosystem on macroeconomic adjustment in European crisis countries. Finally, Chapter 4 of the thesis assesses the effectiveness of a macroprudential policy instrument, caps on banks’ leverage, in stabilizing credit growth during financial downturns.