02.09.2016 • 35/2016
The German Economy: Still Robust Despite Sliding Sentiment
The prospects for the German economy are still quite favorable. While sentiment indicators suggest that growth will slow at the end of the year, domestic demand will continue on an upward trend. The German GDP should increase by 1.9% in 2016. For 2017 we expect a lower growth rate of 1.2%“Weaker export volumes and higher growth of imports are the relevant factors for the slowdown”, says Prof Oliver Holtemöller, IWH Vice president. Unemployment will rise a bit as more refugees enter the labor market. Consumer price inflation remains moderate. The general government balance (cyclically ad¬justed as well as unadjusted) will be in surplus in both 2016 and 2017.
Oliver Holtemöller
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11.08.2016 • 34/2016
2016 stress tests: Italian banks don’t look worse than German large commercial banks
The European Banking Authority today presented the results of the 2016 stress tests. They show that most European banks appear more or less stable. “What worries me is, however, that the Italian banks do not look worse than the large German commercial banks,” says Reint E. Gropp, president of the Halle Institute for Economic Research (IWH). “It appears that both Deutsche Bank and Commerzbank would benefit significantly from an increase in equity. The stress test was also missing two crucial points: One, the effect of a long lasting low interest rate environment on banks was not simulated. And second, the test did not take into consideration that many small institutions could fail at the same time. This is not an unlikely scenario, given how small banks in particular struggle with shrinking interest margins,“ says Gropp. Finally, the stress test should not distract from the urgency to solve the problems in the Italian banking system.
Reint E. Gropp
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Effects of Incorrect Specification on the Finite Sample Properties of Full and Limited Information Estimators in DSGE Models
Sebastian Giesen, Rolf Scheufele
Journal of Macroeconomics,
June
2016
Abstract
In this paper we analyze the small sample properties of full information and limited information estimators in a potentially misspecified DSGE model. Therefore, we conduct a simulation study based on a standard New Keynesian model including price and wage rigidities. We then study the effects of omitted variable problems on the structural parameter estimates of the model. We find that FIML performs superior when the model is correctly specified. In cases where some of the model characteristics are omitted, the performance of FIML is highly unreliable, whereas GMM estimates remain approximately unbiased and significance tests are mostly reliable.
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27.07.2016 • 33/2016
The merger of London Stock Exchange and Deutsche Boerse was reasonable
Shareholders of Deutsche Boerse AG have agreed to merge with London Stock Exchange (LSE). “I appreciate this decision“, says Prof Reint E. Gropp, president of Halle Institute for Economic Research (IWH). “Europe is in need of a competitive financial center. Especially now, after the Brexit referendum, the arguments for a merger are more convincing than ever.”
Reint E. Gropp
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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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24.06.2016 • 26/2016
UK’s “No” to EU will be costly for both sides
On Thursday 23rd, the British people have decided to leave the European Union (EU) Their vote not to remain in the European community was surprisingly clear. UK’s exit will have both political and economic consequences which are far-reaching for the country itself as well as the rest of Europe. “The reactions of the remaining member states are the crucial key now, especially France’s and Germany’s” says Reint E. Gropp, President of the Halle Institute for Economic Research (IWH) – Member of the Leibniz Association.
Reint E. Gropp
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Buy, Keep, or Sell: Economic Growth and the Market for Ideas
Ufuk Akcigit, Murat Alp Celik, Jeremy Greenwood
Econometrica,
No. 3,
2016
Abstract
An endogenous growth model is developed where each period firms invest in researching and developing new ideas. An idea increases a firm's productivity. By how much depends on the technological propinquity between an idea and the firm's line of business. Ideas can be bought and sold on a market for patents. A firm can sell an idea that is not relevant to its business or buy one if it fails to innovate. The developed model is matched up with stylized facts about the market for patents in the United States. The analysis gauges how efficiency in the patent market affects growth.
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14.04.2016 • 15/2016
Joint Economic Forecast Spring 2016: Upturn Remains Moderate – Economic Policy Lacks Growth Orientation
Economic research institutes now estimate that gross domestic product will increase by 1.6 percent in 2016, instead of 1.8 percent as forecast in autumn 2015.
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Mere Criticism of the ECB is no Solution
M. Fratzscher, Reint E. Gropp, Jan Pieter Krahnen, Hans-Helmut Kotz, Christian Odendahl, Beatrice Weder di Mauro, Guntram Wolff
One-off Publications,
2016
Abstract
Criticism in Germany of the ECB is counter-productive. Monetary policy must remain expansive so that it can at least begin to fulfil the ECB mandate. The preservation of its credibility also demands that. Instead of the ECB doing less, European policymakers must do more. They need to act more decisively to set Europe back upon a growth path.
[A shorter version was published under the title “Kritik an Draghi ist noch keine Lösung“ in the Frankfurter Allgemeine Sonntagszeitung of April 10, 2016].
Policymakers, including in Germany, can no longer shirk their responsibility for the current economic situation in large parts of Europe. That calls for growth-friendly fiscal policy, structural reforms to open up new markets and consolidation and restructuring of the financial sector. We in Germany, above all, must look in the mirror, because we need the majority of these reforms just as urgently as our European neighbours do.
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