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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Does Administrative Status Matter for Urban Growth? Evidence from Present and Former County Capitals in East Germany
Bastian Heider, Albrecht Kauffmann, Martin T. W. Rosenfeld
Abstract
Public sector activities are often neglected in the economic approaches used to analyze the driving forces behind urban growth. The institutional status of a regional capital is a crucial aspect of public sector activities. This paper reports on a quasi-natural experiment on county towns in East Germany. Since 1990, cities in East Germany have demonstrated remarkable differences in population development. During this same period, many towns have lost their status as a county seat due to several administrative reforms. Using a difference-in-difference approach, the annual population development of former county capitals is compared to population change in towns that have successfully held on to their capital status throughout the observed period. The estimations show that maintaining county capital status has a statistically significant positive effect on annual changes in population. This effect is furthermore increasing over time after the implementation of the respective reforms.
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Does the Technological Content of Government Demand Matter for Private R&D? Evidence from US States
Viktor Slavtchev, Simon Wiederhold
American Economic Journal: Macroeconomics,
No. 2,
2016
Abstract
Governments purchase everything from airplanes to zucchini. This paper investigates the role of the technological content of government procurement in innovation. In a theoretical model, we first show that a shift in the composition of public purchases toward high-tech products translates into higher economy-wide returns to innovation, leading to an increase in the aggregate level of private R&D. Using unique data on federal procurement in US states and performing panel fixed-effects estimations, we find support for the model's prediction of a positive R&D effect of the technological content of government procurement. Instrumental-variable estimations suggest a causal interpretation of our findings.
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Aktuelle Trends: Nach Einführung des Mindestlohns: Höherer Stundenlohn, aber geringere Arbeitszeit bei Ungelernten
Oliver Holtemöller
Wirtschaft im Wandel,
No. 1,
2016
Abstract
Ein Jahr nach Einführung des flächendeckenden gesetzlichen Mindestlohns in Höhe von 8,50 Euro brutto je Stunde ist die Diskussion über die Beschäftigungseffekte dieser Maßnahme in vollem Gange. Die momentan verfügbaren Daten deuten zwar nicht darauf hin, dass Arbeitsplätze in großem Umfang weggefallen sind, aber die wöchentliche Arbeitszeit Ungelernter ist in vom Mindestlohn besonders betroffenen Bundesländern gesunken.
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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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Transition to Clean Technology
Daron Acemoglu, Ufuk Akcigit, Douglas Hanley, William R. Kerr
Journal of Political Economy,
No. 1,
2016
Abstract
We develop an endogenous growth model in which clean and dirty technologies compete in production. Research can be directed to either technology. If dirty technologies are more advanced, the transition to clean technology can be difficult. Carbon taxes and research subsidies may encourage production and innovation in clean technologies, though the transition will typically be slow. We estimate the model using microdata from the US energy sector. We then characterize the optimal policy path that heavily relies on both subsidies and taxes. Finally, we evaluate various alternative policies. Relying only on carbon taxes or delaying intervention has significant welfare costs.
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A Review of Empirical Research on the Design and Impact of Regulation in the Banking Sector
Sanja Jakovljević, Hans Degryse, Steven Ongena
Annual Review of Financial Economics,
2015
Abstract
We review existing empirical research on the design and impact of regulation in the banking sector. The impact of each individual piece of regulation may inexorably depend on the set of regulations already in place, the characteristics of the banks involved (from their size or ownership structure to operational idiosyncrasies in terms of capitalization levels or risk-taking behavior), and the institutional development of the country where the regulation is introduced. This complexity is challenging for the econometrician, who relies either on single-country data to identify challenges for regulation or on cross-country data to assess the overall effects of regulation. It is also troubling for the policy maker, who has to optimally design regulation to avoid any unintended consequences, especially those that vary over the credit cycle such as the currently developing macroprudential frameworks.
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Metropolregionen als Schlüssel zum wirtschaftlichen Erfolg?: 5. „Halle Forum“ des IWH und der ARL am 11./12. Dezember 2014
A. Förtsch, Albrecht Kauffmann, Martin T. W. Rosenfeld
Nachrichten der ARL,
No. 2,
2015
Abstract
Seit 2006 findet am Institut für Wirtschaftsforschung Halle (IWH) in Halle an der Saale alle zwei Jahre das „Halle Forum on Urban Economic Growth“ statt. Ziel dieser Veranstaltungsreihe ist es, ein internationales und interdisziplinäres Forum für den Austausch aktueller Forschungsergebnisse zu Strategien und Verläufen der wirtschaftlichen Entwicklung von Städten zu bieten, mit einem Fokus auf altindustrielle Regionen und post-sozialistische Länder. Das nunmehr bereits fünfte „Halle Forum“ befasste sich schwerpunktmäßig mit der „richtigen“ Governance von Metropolregionen und den wirtschaftlichen Effekten von verschiedenen Formen der metropolitanen Governance. Zusätzlich wurden weitere zentrale Zukunftsthemen der Stadtentwicklung aufgegriffen.
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Perspectives for Future Research on European Urban Development: Workshop im Rahmen eines deutsch-russischen Kooperationsprojekts
A. Förtsch, Albrecht Kauffmann
Wirtschaft im Wandel,
No. 3,
2015
Abstract
Das im September 2012 auf Initiative der damaligen Abteilung Stadtökonomik gestartete Projekt zur Anbahnung gemeinsamer Forschungsarbeiten des Leontief Centre St. Petersburg (LC) und des IWH zu Fragen der wirtschaftlichen Neupositionierung post-sozialistischer Städte fand am 25. und 26. Februar 2015 mit einem Workshop in Halle (Saale) seinen vorläufigen Abschluss. Neben den beteiligten Mitarbeiterinnen und Mitarbeitern des LC und des IWH nahmen auch Wissenschaftlerinnen und Wissenschaftler anderer Forschungseinrichtungen teil, deren Forschung Bezüge zur Fragestellung des vom Bundesministerium für Bildung und Forschung (BMBF) geförderten Projekts aufweist. In den vorangehenden zweieinhalb Jahren gab es einen intensiven Austausch zwischen beiden Instituten u. a. in Form von Gastaufenthalten, gegenseitiger Hilfe bei der Datenbeschaffung und aufbereitung und gemeinsamen Auftritten bei wissenschaftlichen Veranstaltungen. Im Rahmen des Abschlussworkshops wurden Ergebnisse der gemeinsamen Arbeit wie auch thematisch verwandter Untersuchungen vorgetragen und diskutiert.
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