Agrarrohstoffpreise und Lebensmittelpreise in armen Ländern
Oliver Holtemöller
Wirtschaft im Wandel,
No. 1,
2016
Abstract
In der Politik und in den Medien wird darüber diskutiert, ob spekulativer Handel mit Agrarrohstoffen den Hunger in der Welt vermehrt. In diesem Aufsatz wird untersucht, in welchem Umfang sich Schwankungen von Agrarrohstoffpreisen auf nationale Verbraucherpreise für Lebensmittel in Indien als einem großen Land mit einem großen Anteil an armen Menschen übertragen. Es wird gezeigt, dass Agrarrohstoffpreisschwankungen mit einem Quartal Verzögerung signifikante Effekte auf die Verbraucherpreisinflation für Lebensmittel und die Verbraucherpreisinflation insgesamt in Indien haben. Quantitativ bedeutend waren diese Effekte etwa 2007/2008 und 2010/2011. Aufgrund der restriktiven Reaktion der indischen Zentralbank auf einen Anstieg der Verbraucherpreisinflation kommt es zusätzlich zu negativen Auswirkungen auf die Konjunktur. Allerdings sind andere Faktoren für die Schwankungen der Lebensmittelpreise in Indien wesentlich bedeutender.
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The Diablo 3 Economy: An Agent Based Approach
Makram El-Shagi, Gregor von Schweinitz
Computational Economics,
No. 2,
2016
Abstract
Designers of MMOs such as Diablo 3 face economic problems much like policy makers in the real world, e.g. inflation and distributional issues. Solving economic problems through regular updates (patches) became as important to those games as traditional gameplay issues. In this paper we provide an agent framework inspired by the economic features of Diablo 3 and analyze the effect of monetary policy in the game. Our model reproduces a number of features known from the Diablo 3 economy such as a heterogeneous price development, driven almost exclusively by goods of high quality, a highly unequal wealth distribution and strongly decreasing economic mobility. The basic framework presented in this paper is meant as a stepping stone to further research, where our evidence is used to deepen our understanding of the real-world counterparts of such problems. The advantage of our model is that it combines simplicity that is inherent to model economies with a similarly simple observable counterpart (namely the game environment where real agents interact). By matching the dynamics of the game economy we can thus easily verify that our behavioral assumptions are good approximations to reality.
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Real Effective Exchange Rate Misalignment in the Euro Area: A Counterfactual Analysis
Makram El-Shagi, Axel Lindner, Gregor von Schweinitz
Review of International Economics,
No. 1,
2016
Abstract
The European debt crisis has revealed severe imbalances within the Euro area, sparking a debate about the magnitude of those imbalances, in particular concerning real effective exchange rate misalignments. We use synthetic matching to construct a counterfactual economy for each member state in order to identify the degree of these misalignments. We find that crisis countries are best described as a combination of advanced and emerging economies. Comparing the actual real effective exchange rate with those of the counterfactuals gives evidence of misalignments before the outbreak of the crisis: all peripheral countries appear strongly and significantly overvalued.
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Vierteljährliche Konjunkturberichterstattung für das Land Sachsen-Anhalt - Die gesamtwirtschaftliche Lage im 3. Quartal 2015 -
Brigitte Loose, Hans-Ulrich Brautzsch, Franziska Exß
IWH Online,
No. 12,
2015
Abstract
Die gesamtwirtschaftliche Produktion in Sachsen-Anhalt ist nach den indikatorgestützten
Schätzungen des IWH im dritten Quartal des Jahres 2015 um 0,4% zurückgegangen, nachdem sie im Quartal zuvor kräftig zugelegt hatte. Damit blieb die Expansion im laufenden Quartal deutlich hinter der in Deutschland zurück.
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Burdett–Mortensen Model of on-the-Job Search with Two Sectors
Florian Hoffmann, Shouyong Shi
Review of Economic Dynamics,
Special Issue in Honor of Dale Mortensen
2016
Abstract
The focus of this paper is on the steady state of a two-sector economy with undirected search where employed and unemployed workers can search for jobs, both within a sector and between the sectors. As in the one-sector model, on-the-job search generates wage dispersion among homogeneous workers. The analysis of the two-sector model uncovers a property called constant tension that is responsible for analytical tractability. We characterize the steady state in all cases with constant tension. When time discounting vanishes, constant tension yields the endogenous separation rate in each sector as a linear function of the present value for a worker. The one-sector economy automatically satisfies constant tension, in which case the linear separation rate implies that equilibrium offers of the worker value are uniformly distributed. Constant tension also has strong predictions for worker transitions and value/wage dispersion, both within a sector and between the two sectors. When constant tension does not hold, we compute the steady state numerically and illustrate its properties.
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Networks and the Macroeconomy: An Empirical Exploration
Daron Acemoglu, Ufuk Akcigit, William R. Kerr
NBER Macroeconomics Annual,
2015
Abstract
How small shocks are amplified and propagated through the economy to cause sizable fluctuations is at the heart of much macroeconomic research. Potential mechanisms that have been proposed range from investment and capital accumulation responses in real business-cycle models (e.g., Kydland and Prescott 1982) to Keynesian multipliers (e.g., Diamond 1982; Kiyotaki 1988; Blanchard and Kiyotaki 1987; Hall 2009; Christiano, Eichenbaum, and Rebelo 2011); to credit market frictions facing firms, households, or banks (e.g., Bernanke and Gertler 1989; Kiyotaki and Moore 1997; Guerrieri and Lorenzoni 2012; Mian, Rao, and Sufi 2013); to the role of real and nominal rigidities and their interplay (Ball and Romer 1990); and to the consequences of (potentially inappropriate or constrained) monetary policy (e.g., Friedman and Schwartz 1971; Eggertsson and Woodford 2003; Farhi and Werning 2013).
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IWH-Konjunkturbarometer Ostdeutschland: Ostdeutsche Konjunktur belebt sich
Udo Ludwig, Franziska Exß
Konjunktur aktuell,
No. 5,
2015
Abstract
Im dritten Quartal ist das Bruttoinlandsprodukt in den ostdeutschen Flächenländern – saisonbereinigt nach dem Berliner Verfahren – nur um 0,2% gegenüber dem zweiten Vierteljahr gestiegen (Alte Bundesländer: 0,5%). Gebremst hat der Leistungsrückgang im Produzierenden Gewerbe, wohingegen im Dienstleistungssektor – auch infolge der wirtschaftlichen Impulse von der Versorgung und Betreuung der Flüchtlinge – die Wertschöpfung verstärkt expandierte. Insgesamt nimmt das Bruttoinlandsprodukt im Jahr 2015 um 1,3% zu. Der Zuwachs bleibt damit erneut hinter der Entwicklung in den Alten Bundesländern zurück (1,7%).
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Robuste Binnenkonjunktur kompensiert schwächere Exportdynamik
Konjunktur aktuell,
No. 5,
2015
Abstract
Trotz beträchtlicher Schwankungen auf den Währungs-, Kapital- und Rohstoffmärkten expandiert die Weltproduktion moderat und ohne große Schwankungen. Die USA und Großbritannien sind im Aufschwung, und der Euroraum erholt sich zögerlich. In China hat sich die Konjunktur nach einer ausgeprägten Schwächephase zu Beginn des Jahres 2015 wieder stabilisiert, während die Rezessionen in Russland und Brasilien anhalten. Beide großen Schwellenländer leiden an den starken Rückgängen der Preise für ihre Rohstoffexporte. Weltweit robust ist dagegen die Konjunktur in den Dienstleistungsbereichen.
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How Effective is Macroprudential Policy during Financial Downturns? Evidence from Caps on Banks' Leverage
Manuel Buchholz
Working Papers of Eesti Pank,
No. 7,
2015
Abstract
This paper investigates the effect of a macroprudential policy instrument, caps on banks' leverage, on domestic credit to the private sector since the Global Financial Crisis. Applying a difference-in-differences approach to a panel of 69 advanced and emerging economies over 2002–2014, we show that real credit grew after the crisis at considerably higher rates in countries which had implemented the leverage cap prior to the crisis. This stabilising effect is more pronounced for countries in which banks had a higher pre-crisis capital ratio, which suggests that after the crisis, banks were able to draw on buffers built up prior to the crisis due to the regulation. The results are robust to different choices of subsamples as well as to competing explanations such as standard adjustment to the pre-crisis credit boom.
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