Monetary Policy in an Oil-dependent Economy in the Presence of Multiple Shocks
Review of World Economics,
Russian monetary policy has been challenged by large and continuous private capital outflows and a sharp drop in oil prices during 2014. Both contributed to significant depreciation pressures on the ruble and led the central bank to give up its exchange rate management strategy. Against this background, this work estimates a small open economy model for Russia, featuring an oil price sector and extended by a specification of the foreign exchange market to correctly account for systematic central bank interventions. We find that shocks to the oil price and private capital flows substantially affect domestic variables such as inflation and output. Simulations for the estimated actual strategy and alternative regimes suggest that the vulnerability of the Russian economy to external shocks can substantially be lowered by adopting some form of inflation targeting. Strategies to target the nominal exchange rate or the ruble price of oil prove to be inferior.
Banking Globalization, Local Lending, and Labor Market Effects: Micro-level Evidence from Brazil
Journal of Financial Stability,
Recent financial crises have prompted the interest in understanding how banking globalization interacts with domestic institutions in shaping foreign shocks’ transmission. This paper uses regional banking data from Brazil to show that a foreign funding shock to banks negatively affects lending by their regional branches. This effect increases in the presence of frictions in internal capital markets, which affect branches’ capacity to access funding from other regions via intra-bank linkages. These results also matter on an aggregate level, as municipality-level credit and job flows drop in exposed regions. Policies aiming to reduce the fragmented structure of regional banking markets could moderate the propagation of foreign shocks.
Finanzsysteme: Die Anatomie der Marktwirtschaft Wie ist das Finanzsystem aufgebaut, wie funktioniert es, wie...
Gemeinschaftsdiagnose Die Gemeinschaftsdiagnose ist ein Instrument zur Beurteilung...
Why is Unemployment so Countercyclical?
Review of Economic Dynamics,
We argue that wage inertia plays a pivotal role in allowing empirically plausible variants of the standard search and matching model to account for the large countercyclical response of unemployment to shocks.
Lokaler Schock trifft lokale Bank: Die Folgen der Hochwasser des Jahres 2013 für das deutsche Finanzsystem
Wirtschaft im Wandel,
Welche Auswirkungen makroökonomische Schocks in Form von Naturkatastrophen auf Banken haben und welche realwirtschaftlichen Implikationen sich daraus ergeben können, wurde unter dem Titel „Katrina und die Folgen: Sicherere Banken und positive Produktionseffekte“ bereits an früherer Stelle in der „Wirtschaft im Wandel“ dargestellt. Daran anknüpfend stellt dieser Artikel einen Forschungsbeitrag vor, der die Folgen der Hochwasser des Jahres 2013 in Deutschland für die Sparkassen und Genossenschaftsbanken und deren Unternehmenskunden untersucht. Im Mittelpunkt steht die Frage, ob lokale Banken die negativen Effekte des Hochwassers mildern, indem sie die Kreditvergabe an Unternehmen ausweiten. Der Befund ist erstens, dass Banken, die Beziehungen zu betroffenen Unternehmen haben, ihre Kreditvergabe um 3% relativ zu Banken ohne Beziehungen zu betroffenen Unternehmen ausweiten, und zweitens, dass bei Sparkassen mit Zugang zu nicht betroffenen regionalen Märkten keine signifikante Erhöhung des Kreditrisikos zu beobachten ist. Ein gegenüber regionalen Katastrophen widerstandsfähiges Finanzsystem sollte somit aus lokalen Banken bestehen, die gleichwohl überregional verbunden sind, damit ausreichende Möglichkeiten zur Diversifikation bestehen.
Information Feedback in Temporal Networks as a Predictor of Market Crashes
In complex systems, statistical dependencies between individual components are often considered one of the key mechanisms which drive the system dynamics observed on a macroscopic level. In this paper, we study cross-sectional time-lagged dependencies in financial markets, quantified by nonparametric measures from information theory, and estimate directed temporal dependency networks in financial markets. We examine the emergence of strongly connected feedback components in the estimated networks, and hypothesize that the existence of information feedback in financial networks induces strong spatiotemporal spillover effects and thus indicates systemic risk. We obtain empirical results by applying our methodology on stock market and real estate data, and demonstrate that the estimated networks exhibit strongly connected components around periods of high volatility in the markets. To further study this phenomenon, we construct a systemic risk indicator based on the proposed approach, and show that it can be used to predict future market distress. Results from both the stock market and real estate data suggest that our approach can be useful in obtaining early-warning signals for crashes in financial markets.
Does it Payoff to Research Economics? A Tale of Citation, Knowledge and Economic Growth in Transition Countries
Physica A: Statistical Mechanics and its Applications,
There are many economic theories that promote human capital as a key driver of a country’s economic growth, but it is challenging to test this theory empirically on a country level and causally interpret the coefficients due to several identification problems. We tried to answer this particular question by using a quasi-natural experiment that happened quarter century ago – the fall of communist block in Eastern Europe. We use a shock to a particular scientific field – economics, to test whether the future investment into that particular field resulted in increased welfare and economic growth. The economics paradigm that was governing all of the communist block ceased to exist. Human capital depreciated over night and all communist countries had to transit from planned economy to a market economy. In the following years countries had to adapt to market economy through additional investment in human capital and research. We find that countries which lack both of the two fourth mentioned components had 25 years later a relatively lower economic growth and wealth. Unlike economics, other fields such as physics and medicine did not go through the same process so we use them as a placebo effect for our study. We find that the relative ratio of citations between economics and physics in post-communist countries is increasing only 15 years after the “paradigm” shock which gives a suggestive evidence that timing of investment into particular scientific field matters the most.
German Unification: Macroeconomic Consequences for the Country
F. Heinemann, U. Klüh, S. Watzka (eds): Monetary Policy, Financial Crises, and the Macroeconomy. Springer,
This paper shows basic macroeconomic consequences of the German unification for the country in time series spanning from 20 years before the event until 25 years thereafter. Essential findings can well be explained by elementary economic theory. Moreover, it is shown that the German economy had been off steady state already before unification in important aspects. In particular, a steep increase in the current account balance during the 1980s suggests that globalization strongly affected the German economy at that time. While unification stopped the trend to an ever more open economy and to a rising trade surplus for about 10 years, the fall of the iron curtain eventually even increased this trend in the long run.