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The Effects of Fiscal Policy in an Estimated DSGE Model – The Case of the German Stimulus Packages During the Great Recession

Andrej Drygalla, Oliver Holtemöller, Konstantin Kiesel
IWH Discussion Papers, No. 34, 2017
published in: Macroeconomic Dynamics
Abstract

In this paper, we analyse the effects of the stimulus packages adopted by the German government during the Great Recession. We employ a standard medium-scale dynamic stochastic general equilibrium (DSGE) model extended by non-optimising households and a detailed fiscal sector. In particular, the dynamics of spending and revenue variables are modeled as feedback rules with respect to the cyclical component of output. Based on the estimated rules, fiscal shocks are identified. According to the results, fiscal policy, in particular public consumption, investment, transfers and changes in labour tax rates including social security contributions prevented a sharper and prolonged decline of German output at the beginning of the Great Recession, suggesting a timely response of fiscal policy. The overall effects, however, are small when compared to other domestic and international shocks that contributed to the economic downturn. Our overall findings are not sensitive to the allowance of fiscal foresight.

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7. IWH/INFER-Workshop on Applied Economics and Economic Policy: “Challenges and Implications of Inflationary Dynamics“

Birgit Schultz, Gregor von Schweinitz
Wirtschaft im Wandel, No. 4, 2017
Abstract
Am 7. und 8. September 2017 fand am IWH in Zusammenarbeit mit dem International Network for Economic Research (INFER) und unter Förderung der Stadt Halle (Saale) der 7. Workshop in der Reihe „Applied Economics and Economic Policy“ statt. Im Rahmen des Workshops stellten Wissenschaftlerinnen und Wissenschaftler europäischer Universitäten und internationaler Organisationen ihre neuesten Forschungsergebnisse zu aktuellen ökonomischen Fragen und Problemen vor und diskutierten diese intensiv. Insbesondere gab es einen regen Austausch über das Spezialthema „Challenges and Implications of Inflationary Dynamics“. Hier ging es vor allem um die Entwicklungen von Inflationserwartungen sowie mögliche Gründe und Folgen dieser Entwicklungen.
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EFN Report Winter 2017/18: Economic Outlook for the Euro Area in 2018 and 2019

EFN Reports, No. 1, 2018
Abstract
With advanced economies likely to face over-utilization of economic capacities in 2018 for the first time since the Great Recession, companies will further expand their investment activities. Price and wage dynamics will pick up globally, triggered by the recent increase in energy prices. A major risk for the world economy pertains to financial markets: measures for risk tolareance and valuations for many types of assets have approached levels last reached ten years ago, on the eve of the financial crisis. A sudden readjustment of asset prices and risk premia could worsen financial conditions globally and seriously affect the global economy. The cyclical upswing of the euro area economy continues. The recovery, under way since summer 2013, transformed into an upswing in autumn 2016 when demand from outside the euro area increased quite abruptly; higher exports and improved expectations have contrinuted to induce firms to invest more into equipment. Wage dynamics in the euro area appear to increase, but only slowly. An annual growth rate for hourly wage costs of about 2% is still not enough to put upward pressure on prices, but this will change eventually as the cyclical upswing is likely to continue. Inflation will, according to our forecast, reach the ECB’s target of below but close to 2% in the second half of 2019. Conditions for further healthy growth in the euro area are in place, but employment dynamics might markedly lose momentum in some member countries in the second half of 2018, as the potential labour force is becoming more and more exhausted. Overall, we forecast euro area GDP to grow by 2.2% in 2018 and by 1.5% in 2019.
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Macroprudential Policy and Intra-group Dynamics: The Effects of Reserve Requirements in Brazil

Chris Becker, Matias Ossandon Busch, Lena Tonzer
IWH Discussion Papers, No. 21, 2017
published in: Journal of Corporate Finance
Abstract

This paper examines whether intra-group dynamics matter for the transmission of macroprudential policy. Using novel bank-level data on the Brazilian banking system, we investigate the effect of reserve requirements targeting headquarter banks’ deposit share on credit supply by their municipal bank branches. For identification purposes, we exploit that reserve requirements are adjusted following global economic cycles. Our results reveal a lending channel of reserve requirements for branches whose parent banks are more exposed to targeted deposits. Branch ownership and exposure to internal liquidity are central in explaining the results. Our findings reveal limitations in current macroprudential policy frameworks.

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EFN Report Autumn 2017: Economic Outlook for the Euro Area in 2017 and 2018

EFN Reports, No. 4, 2017
Abstract
In 2017 the world economy is in an upswing, but consumer price inflation is still surprisingly low in advanced economies, and central banks will therefore keep key interest rates very low and financial conditions favorable for the rest of the year and, probably, for 2018. Global growth, though, will moderate a bit, since expansive policy measures in China have been reduced. As an early consequence, imports of emerging Asia were no more than stagnant during summer. The upswing in the euro area is broad based, both regionally and with respect to the different components of aggregate demand, as investment has recently picked up markedly, partly due to construction of dwellings. From the production side, the level of capacity utilization in the manufacturing sector is clearly above its long-term average and rising further. Inflation will not have reached the ECB’s target rate of below but close to 2% at the end of 2018. The trend of a growing participation rate in labour markets and the amount of part-time and low quality jobs are some reasons why overall wage and price dynamics are still very moderate; the appreciation of the euro, the incorporation of technical innovations and a possible change in the consumer preferences for low-cost products could be other reasons. We forecast a GDP growth rate of 2.3% for 2017 and 1.9% for 2018. This year’s strong pickup of world trade means that net exports will, in spite of rather strong domestic demand, contribute positively to GDP growth in 2017, while the opposite holds for 2018, due to the significant appreciation of the Euro.
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12.04.2017 • 19/2017

Joint Economic Forecast Spring 2017: Upturn in Germany strengthens in spite of global economic risks

The German economy is already in the fifth year of a moderate upturn. According to the Gemeinschaftsdiagnose (GD, joint economic forecast) that was prepared by Germany’s five leading economic research institutes on behalf of the Federal Government, capacity utilization is gradually increasing, and aggregate production capacities are now likely to have slightly exceeded their normal utilisation levels. However, cyclical dynamics remain low compared to earlier periods of recoveries, as consumption expenditures, which do not exhibit strong fluctuations, have been the main driving force so far. In addition, net migration increases potential output, counteracting a stronger capacity tightening. “Gross domestic product (GDP) is expected to expand by 1.5% (1.8% adjusted for calendar effects) and 1.8% in the next year. Unemployment is expected to fall to 6.1% in 2016, to 5.7% in 2017 and 5.4% in 2018”, says Oliver Holtemöller, Head of the Department Macroeconomics and vice president of the Halle Institute for Economic Research (IWH) – Member of the Leibniz Association. Inflation is expected to increase markedly over the forecast horizon. After an increase in consumer prices of only 0.5% in 2016, the inflation rate is expected to rise to 1.8% in 2017 and 1.7% in 2018. The public budget surplus will reduce only modestly. Public finances are slightly stimulating economic activity in the current year and are cyclically neutral in the year ahead.

Oliver Holtemöller
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Sovereign Credit Risk Co-movements in the Eurozone: Simple Interdependence or Contagion?

Manuel Buchholz, Lena Tonzer
International Finance, No. 3, 2016
Abstract
We investigate credit risk co-movements and contagion in the sovereign debt markets of 17 industrialized countries during the period 2008–2012. We use dynamic conditional correlations of sovereign credit default swap spreads to detect contagion. This approach allows us to separate contagion channels from the determinants of simple interdependence. The results show that, first, sovereign credit risk co-moves considerably, particularly among eurozone countries and during the sovereign debt crisis. Second, contagion varies across time and countries. Third, similarities in economic fundamentals, cross-country linkages in banking and common market sentiment constitute the main channels of contagion.
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Qual VAR Revisited: Good Forecast, Bad Story

Makram El-Shagi, Gregor von Schweinitz
Journal of Applied Economics, No. 2, 2016
Abstract
Due to the recent financial crisis, the interest in econometric models that allow to incorporate binary variables (such as the occurrence of a crisis) experienced a huge surge. This paper evaluates the performance of the Qual VAR, originally proposed by Dueker (2005). The Qual VAR is a VAR model including a latent variable that governs the behavior of an observable binary variable. While we find that the Qual VAR performs reasonable well in forecasting (outperforming a probit benchmark), there are substantial identification problems even in a simple VAR specification. Typically, identification in economic applications is far more difficult than in our simple benchmark. Therefore, when the economic interpretation of the dynamic behavior of the latent variable and the chain of causality matter, use of the Qual VAR is inadvisable.
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EFN Report Summer 2016: Economic Outlook for the Euro Area in 2016 and 2017

EFN Reports, No. 3, 2016
Abstract
Short run consequences of Brexit for the euro area economy mainly depend on the effects on confidence in the stability of the European Union and the currency area in particular. Anti-European (or indeed anti-globalization) movements are certainly encouraged by the British vote. More important, however, might be a reverse effect: from the perspective of the British turmoil, the euro area might in the near future appear as a zone of relative stability and calm. Against the background of a sluggish world economy, the euro area economy recently performed reasonably well: dynamics have been slowly increasing since 2013, and the rate of expansion in the first quarter of 2016 was one of the highest of the past couple of years. Looking forward, the drivers of the recovery should continue supporting growth in the second half of 2016 and for much of 2017. Our forecast is that euro area GDP will expand by 1.7% in 2016 and by 1.6% in 2017, with only a minor effect from Brexit. This year, like in 2015, average oil prices will probably be markedly lower than they were a year ago, supporting real incomes of private households and lowering production costs of firms, and monetary policy will still be supportive. Labour markets appear to continue improving slowly. Associated with the improved economic conditions, we expect a slight increase in euro area inflation during 2016, 0.3%, with a more marked increase in 2017, 1,3%.
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Nested Models and Model Uncertainty

Alexander Kriwoluzky, Christian A. Stoltenberg
Scandinavian Journal of Economics, No. 2, 2016
Abstract
Uncertainty about the appropriate choice among nested models is a concern for optimal policy when policy prescriptions from those models differ. The standard procedure is to specify a prior over the parameter space, ignoring the special status of submodels (e.g., those resulting from zero restrictions). Following Sims (2008, Journal of Economic Dynamics and Control 32, 2460–2475), we treat nested submodels as probability models, and we formalize a procedure that ensures that submodels are not discarded too easily and do matter for optimal policy. For the United States, we find that optimal policy based on our procedure leads to substantial welfare gains compared to the standard procedure.
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