Banks and Sovereign Risk: A Granular View
Claudia M. Buch, Michael Koetter, Jana Ohls
Journal of Financial Stability,
2016
Abstract
We investigate the determinants of sovereign bond holdings of German banks and the implications of such holdings for bank risk. We use granular information on all German banks and all sovereign debt exposures in the years 2005–2013. As regards the determinants of sovereign bond holdings of banks, we find that these are larger for weakly capitalized banks, banks that are active on capital markets, and for large banks. Yet, only around two thirds of all German banks hold sovereign bonds. Macroeconomic fundamentals were significant drivers of sovereign bond holdings only after the collapse of Lehman Brothers. With the outbreak of the sovereign debt crisis, German banks reallocated their portfolios toward sovereigns with lower debt ratios and bonds with lower yields. With regard to the implications for bank risk, we find that low-risk government bonds decreased the risk of German banks, especially for savings and cooperative banks. Holdings of high-risk government bonds, in turn, increased the risk of commercial banks during the sovereign debt crisis.
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Unemployment and Business Cycles
Lawrence J. Christiano, Martin S. Eichenbaum, Mathias Trabandt
Econometrica,
No. 4,
2016
Abstract
We develop and estimate a general equilibrium search and matching model that accounts for key business cycle properties of macroeconomic aggregates, including labor market variables. In sharp contrast to leading New Keynesian models, we do not impose wage inertia. Instead we derive wage inertia from our specification of how firms and workers negotiate wages. Our model outperforms a variant of the standard New Keynesian Calvo sticky wage model. According to our estimated model, there is a critical interaction between the degree of price stickiness, monetary policy, and the duration of an increase in unemployment benefits.
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Macroeconomic Trade Effects of Vehicle Currencies: Evidence from 19th Century China
Makram El-Shagi, Lin Zhang
Abstract
We use the Chinese experience between 1867 and 1910 to illustrate how the volatility of vehicle currencies affects trade. Today’s widespread vehicle currency is the dollar. However, the macroeconomic effects of this use of the dollar have rarely been addressed. This is partly due to identification problems caused by its international importance. China had adopted a system, where silver was used almost exclusively for trade, similar to a vehicle currency. While being important for China, the global role of silver was marginal, alleviating said identification problems. We develop a bias corrected structural VAR showing that silver price fluctuations significantly affected trade.
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Much Ado About Nothing: Sovereign Ratings and Government Bond Yields in the OECD
Makram El-Shagi
IWH Discussion Papers,
No. 22,
2016
Abstract
In this paper, we propose a new method to assess the impact of sovereign ratings on sovereign bond yields. We estimate the impulse response of the interest rate, following a change in the rating. Since ratings are ordinal and moreover extremely persistent, it proves difficult to estimate those impulse response functions using a VAR modeling ratings, yields and other macroeconomic indicators. However, given the highly stochastic nature of the precise timing of ratings, we can treat most rating adjustments as shocks. We thus no longer rely on a VAR for shock identification, making the estimation of the corresponding IRFs well suited for so called local projections – that is estimating impulse response functions through a series of separate direct forecasts over different horizons. Yet, the rare occurrence of ratings makes impulse response functions estimated through that procedure highly sensitive to individual observations, resulting in implausibly volatile impulse responses. We propose an augmentation to restrict jointly estimated local projections in a way that produces economically plausible impulse response functions.
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Time-varying Volatility, Financial Intermediation and Monetary Policy
S. Eickmeier, N. Metiu, Esteban Prieto
IWH Discussion Papers,
No. 19,
2016
Abstract
We document that expansionary monetary policy shocks are less effective at stimulating output and investment in periods of high volatility compared to periods of low volatility, using a regime-switching vector autoregression. Exogenous policy changes are identified by adapting an external instruments approach to the non-linear model. The lower effectiveness of monetary policy can be linked to weaker responses of credit costs, suggesting a financial accelerator mechanism that is weaker in high volatility periods. To rationalize our robust empirical results, we use a macroeconomic model in which financial intermediaries endogenously choose their capital structure. In the model, the leverage choice of banks depends on the volatility of aggregate shocks. In low volatility periods, financial intermediaries lever up, which makes their balance sheets more sensitive to aggregate shocks and the financial accelerator more effective. On the contrary, in high volatility periods, banks decrease leverage, which renders the financial accelerator less effective; this in turn decreases the ability of monetary policy to improve funding conditions and credit supply, and thereby to stimulate the economy. Hence, we provide a novel explanation for the non-linear effects of monetary stimuli observed in the data, linking the effectiveness of monetary policy to the procyclicality of leverage.
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IWH-Flash-Indikator II. und III. Quartal 2016
Katja Heinisch
IWH-Flash-Indikator,
No. 2,
2016
Abstract
Das deutsche Bruttoinlandsprodukt nahm im ersten Quartal des Jahres 2016 mit 0,7% wesentlich kräftiger als in den Quartalen zuvor zu. Der IWH-Flash-Indikator deutet darauf hin, dass sich das Expansionstempo der deutschen Wirtschaft im zweiten und dritten Quartal 2016 wieder verlangsamen wird. Die Berechnungen ergeben einen Anstieg des Bruttoinlandsprodukts um jeweils etwa 0,4%; das entspricht etwa der Potenzialwachstumsrate.
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Gemeinschaftsdiagnose Frühjahr 2016: Aufschwung bleibt moderat – Wirtschaftspolitik wenig wachstumsorientiert
Wirtschaft im Wandel,
No. 2,
2016
Abstract
Anfang des Jahres 2016 wurde deutlich, dass sich die Weltwirtschaft in den Monaten zuvor merklich abgekühlt hatte. Die schlechten Nachrichten führten auf den Aktienmärkten im Januar und Februar weltweit zu erheblichen Bewertungsverlusten sowie zu einem deutlichen Anstieg der Risikowahrnehmung.
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Aufschwung bleibt moderat – Wirtschaftspolitik wenig wachstumsorientiert: Gemeinschaftsdiagnose Frühjahr 2016
Externe Monographien,
2016
Abstract
Die deutsche Wirtschaft befindet sich in einem moderaten Aufschwung. Das Bruttoinlandsprodukt dürfte in diesem Jahr um 1,6 Prozent und im kommenden Jahr um 1,5 Prozent zulegen. Getragen wird der Aufschwung vom privaten Konsum, der vom anhaltenden Beschäftigungsaufbau, den spürbaren Steigerungen der Lohn- und Transfereinkommen und den Kaufkraftgewinnen infolge der gesunkenen Energiepreise profitiert. Zudem ist die Finanzpolitik, auch wegen der zunehmenden Aufwendungen zur Bewältigung der Flüchtlingsmigration, expansiv ausgerichtet. Während die Bauinvestitionen ebenfalls merklich ausgeweitet werden, bleibt die Investitionstätigkeit der Unternehmen verhalten. Aufgrund der nur allmählichen weltwirtschaftlichen Erholung und der starken Binnennachfrage ist vom Außenhandel kein positiver konjunktureller Impuls zu erwarten. Die öffentlichen Haushalte dürften im Prognosezeitraum deutliche Überschüsse erzielen. Würden diese Handlungsspielräume wie bereits in den vergangenen Jahren wenig wachstumsorientiert genutzt, wäre das nicht nachhaltig.
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