Gegenstand der Untersuchung sind Schlüsselereignisse und politischen Strategien in der Wirtschaftsgeschichte der früheren DDR. Das Growth Accounting Model wird angewandt, um den Einfluss des Inputs von Arbeit und Kapital sowie des technischen Fortschritts auf das Wachstum des Bruttoinlandsprodukts in den verschiedenen Perioden abzuschätzen. Hauptergebnis ist die Erkenntnis, dass nur während der Wirtschaftsreformen in der zweiten Hälfte der Sechziger von der die totale Faktorproduktivität der entscheidende Einfluss auf das Wirtschaftswachstum ausging.

• Worldwide economic activity is vivid in summer 2017. Data on production for the first quarter of the year were only mixed: in the euro area quarterly growth was accelerating, but it went down in the US, Japan, and China. Other basic indicators, however, suggest that these economies continue expanding healthily. • Risks concerning the international economic policy framework remain, in particular since the economic agenda of the US government is still unclear, and no one knows whether the Brexit negotiations will lead the way to an orderly separation of Britain from the EU. • Production in the euro area has been expanding by more that 1 ½ % per year for almost three years now; since summer 2016, this expansion has even gained a bit of pace, mainly due to a expansion in France and, to a lesser extent, in Italy. • The ECB’s cautious hints at a coming normalization of monetary policy were enough to have a discernible effect on financial conditions at the end of June: yields for long term bonds rose, and the euro appreciated. That said, the common currency is still relatively cheap, and borrowing costs for non-financial firms and private households are still low. • Overall, we raise our GDP forecast for 2017 from 1.7% (spring report) to 2.1% and for 2018 to 1.8% (spring: 1.7%). We expect HICP inflation to remain well below the ECB target both in 2017 and 2018. • A major risk for the continuation of the current upswing in 2018 comes from the normalization of monetary policy: it is not clear by how much long term interests will rise and whether higher borrowing costs will jeopardize the confidence of financial markets in the solvency of some public debtors in the euro area.

Die Daten zum Wirtschaftswachstum des Arbeitskreises Volkswirtschaftliche Gesamtrechnungen der Länder für das Jahr 2016 zeigen erneut, dass Sachsen-Anhalt von der wirtschaftlichen Entwicklung im übrigen Ostdeutschland abgekoppelt ist. Während das Wirtschaftswachstum in Ostdeutschland im Jahr 2016 insgesamt 2,1% betrug, stellte Sachsen-Anhalt mit nur 1,0% wieder einmal das ostdeutsche Schlusslicht dar. Im gesamtdeutschen Vergleich schnitt lediglich das Saarland noch schlechter ab. Berlin und Sachsen waren mit jeweils 2,7% bundesweit die Spitzenreiter beim Wirtschaftswachstum, Thüringen lag mit 1,8% gleichauf mit Westdeutschland (vgl. Abbildung a).

This paper argues that outward direct investment (ODI) is replacing international trade as the new way China integrates into the world. Based on two complementary datasets, we document the pattern of Chinese ODI. We argue that the rapid growth of China’s ODI is the result of strong economic development, increasing domestic constraints, and supportive government policies. Compared with trade integration, investment integration involves China more deeply in global business. As a new global investor, China’s ODI in the future is full of opportunities, risks, and challenges. The Chinese government should improve bureaucracy coordination and participate more in designing and maintaining international rules to protect ODI interests.

Global economic activity appears to be expanding rapidly during spring 2017. Confidence among managers is either strong or has improved in all major regions, and world trade and industrial production have, after two years of weakness, picked up markedly during last winter. For 2 ½ years, the euro area economy has now been constantly expanding at an annual rate of about 1.6%, slightly above potential. Employment has also been expanding steadily. Production and employment have been recently rising almost everywhere, including countries such as France and Italy where unemployment rates still do not appear to be on a downward trend. Official investment data for 2015 and 2016 appear to be distorted: big multinational firms relocated parts of their assets (intellectual property products in particular) or their registered business offices from countries outside the euro area to Ireland. As a consequence, reported gross fixed capital formation in Ireland expanded by 33% in 2015 and by 45% in 2016. Without this effect, investment growth in the euro area is about one percentage point lower in 2015 and 2016. Headline inflation hit 2% in February, but this was only the effect of higher world oil prices. The core rate is stubbornly at slightly below 1%, and wages rise annually by scarcely 1.5%. The revival of the economy will have to continue for considerably more time until inflation will come close to the ECB target zone. As monetary conditions continue to support growth, financial policies will be slightly expansive, and a certain external stimulus should come from the apparent recovery of world trade. Overall, we forecast euro area GDP to expand by 1.7% in both 2017 and 2018. However, policy uncertainty is substantial and could have a negative effect. In particular, elections in member states might give power to movements that aim at disintegrating Europe. Such a turn could rapidly undermine confidence, in particular in the financial strength of highly indebted member states.

This paper investigates the link between mortgage supply shocks at the banklevel and regional house price growth in the U.S. using micro-level data on mortgage markets from the Home Mortgage Disclosure Act for the 1990-2014 period. Our results suggest that bank-specific mortgage supply shocks indeed affect house price growth at the regional level. The larger the idiosyncratic shocks to newly issued mortgages, the stronger is house price growth. We show that the positive link between idiosyncratic mortgage shocks and regional house price growth is very robust and economically meaningful, however not very persistent since it fades out after two years.

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.