Finance has seen a spectacular growth in innovation and internationalization during the 20th century (Lane and Milesi-Ferretti, 2008; Shiller, 2013), resulting in a complex and highly interconnected network of financial entities spanning across jurisdictions (Allen and Gale, 1994; Popov and Udell, 2012). Meanwhile the challenges grow for policymakers to provide a framework which allows for the operation of a stable finan- cial system within their jurisdiction (Merton, 1995; Allen and Gale, 2000; Morrison and White, 2009; Ongena et al., 2013). The global financial crisis highlights that se- vere disruptions in the financial sector spread across jurisdictions (Wiggins and Met- rick, 2015) and can have large negative effects on the real economy (Chodorow-Reich, 2013). To contain systemic risk and contagion in the globalized financial system, sev- eral changes have been applied to the regulatory framework of international financial markets (G20, 2009). Regulatory efforts encompass among others the implementa- tion of macroprudential policies and the introduction of mandatory central clearing of derivatives. This thesis aims to contribute to the understanding of differential effects of financial policy reforms depending on the characteristics of the regulated financial entities and networks.

This paper investigates the consequences of shutdowns during the Corona crisis on the risk of bankruptcy for firms in Germany and United Kingdom. We use financial statements from the period 2014 to 2018 to predict how pervasive risk of bankruptcy becomes for micro, small, medium, and large firms due to shutdown measures. We estimate distress for firms using their capacity to service their debt. Our results indicate that under three months of shutdown almost all firms in shutdown industries face high risk of bankruptcy. In Germany, about 99% of firms in shutdown industries and in the UK about 98% of firms in shutdown industries are predicted to be under distress. The furlough schemes reduce the risk of bankruptcy only marginally to 97% of firms in shutdown industries in Germany and 95% of firms in shutdown industries in the United Kingdom in case of a three-month shutdown. In sectors that are not shutdown under conservative estimates of contagion of sales losses, our results indicate considerable risk of widespread bankruptcies ranging from 76% of firms in Germany to 69% of firms in the United Kingdom. These early findings suggest that the impact of corona crisis on corporate sector via shutdowns can be severe and subsequent policy should be designed accordingly.

When referring to the inflation trends over the last decade, economists speak of "puzzles": a “missing disinflation” puzzle in the aftermath of the Great Recession, and a ”missing inflation” one in the years of recovery to nowadays. To this, a specific "excess deflation" puzzle may be added during the post-crisis depression in the Euro Zone. The standard Phillips Curve model, in this context, has failed as the basic tool to produce reliable forecasts of future price developments, leading many scholars to consider this instrument to be no more adequate. The purpose of this paper is to contribute to this literature through the development of a newly specified Phillips Curve model, in which the inflation-expectation component is rationally related to the business cycle. The model is tested with the Euro Zone data 1999-2019 showing that inflation turns out to be consistently determined by output gaps and and experts' survey-based forecast errors, and that the puzzles can be explained by the interplay between these two variables.

Die Politik steht zurzeit vor einem scheinbar unlösbaren Dilemma. Einerseits sollen die Infektionszahlen niedrig gehalten werden: um die medizinische Infrastruktur nicht zu überfordern, und weil in Abwesenheit einer wirkungsvollen Behandlung Menschenleben gerettet werden sollen. Andererseits wäre aber die Ansteckung großer Teile der Bevölkerung (jünger als 60 Jahre und ohne Vorerkrankungen) vielleicht sogar erstrebenswert, weil die Symptome bei dieser Gruppe ohnehin kaum bis gar nicht wahrnehmbar sind und durch sie eine Herdenimmunität entstehen würde, die systematisch Infektionsketten unterbrechen könnte.

Ein Jahrzehnt nach der weltweiten Finanzkrise steht das Finanzsystem noch immer vor enormen Herausforderungen. Wie diese in Europa gemeistert werden können, war Thema einer hochkarätig besetzten Tagung, die am 26. Februar 2020 am Leibniz-Institut für Wirtschaftsforschung Halle (IWH) stattfand.

We employ a unique identification strategy linking survey data on household consumption expenditure to bank‐level data to estimate the effects of bank funding stress on consumer credit and consumption expenditures. We show that households whose banks were more exposed to funding shocks report lower levels of nonmortgage liabilities. This, however, only translates into lower levels of consumption for low‐income households. Hence, adverse credit supply shocks are associated with significant heterogeneous effects.

Die Corona-Pandemie hat dazu geführt, dass das deutsche Bruttoinlandsprodukt im ersten Quartal 2020 um 2,2% im Vergleich zum Vorquartal gesunken ist. Dieser starke Rückgang ist vor allem auf die im Laufe des Monats März in Deutschland und in anderen Ländern eingeführten Maßnahmen zur Eindämmung des Virus zurückzuführen. Bereits aus anderen Gründen war das Bruttoinlandsprodukt schon im vierten Quartal 2019 leicht zurückgegangen. Die Rezession wird sich im laufenden Quartal noch weiter vertiefen und das Bruttoinlandsprodukt um 7,2% zurückgehen, weil bis Mitte Mai die Restriktionen zur Eindämmung der Pandemie noch gravierend waren, aber auch weil private Haushalte und Unternehmen eine Vielzahl von wirtschaftlichen Aktivitäten individuell eingeschränkt haben. Im dritten Quartal 2020 dürfte die Produktion dann wieder zulegen, sofern die Eindämmungsmaßnahmen weiter gelockert werden können (vgl. Abbildung 1).

As we enter a second phase of the COVID-pandemic, in which we attempt to reopen economies and foster growth, investigating the efficiency and productivity of firms becomes essential if we wish to design the appropriate policies. The 2020 Flagship Firm Productivity report provides a comprehensive account of how productivity is changing –and what is driving those changes –in Europe, drawing from granular firm-level information.Although it was written before the crisis erupted, this report can therefore offer critical insights to current policymaking andprovides grounds for future research.

This paper tests how capital markets value the international diversification of banks in good and in bad economic times by investigating changes in domestic and foreign sovereign debt ratings before and during the European sovereign debt crisis. Tracing 320 European banks in 29 countries and 226 credit rating announcements for European sovereigns between 1 January 2001 and 15 August 2012, we show that the market values banks with access to foreign funds. Despite occasional adverse effects immediately following negative news regarding sovereign credit rating changes, international diversification was found to be beneficial to European banks, especially during periods of distress.