Econometric Tools for Macroeconomic Forecasting and Simulation
This research group advances the development and application of quantitative macroeconometric models to improve the accuracy, transparency, and policy relevance of macroeconomic forecasts and simulations. Its work supports the empirical and methodological foundation of the IWH’s forecasting activities and policy recommendations.
The group focuses on both short-term forecasting and simulation-based assessments of long-term economic developments, with particular attention to the interactions between economic activity and the environment. Key areas of expertise include reduced-form models for short-term forecasting, regional disaggregation of macroeconomic trends, structural forecasting techniques, and Dynamic Stochastic General Equilibrium (DSGE) models for scenario analysis.
In addition to its core research, the group develops customized forecasting tools and conducts applied analyses in third-party funded projects. Recent collaborations include model development for Volkswagen Bank, economic ministries in Central Asia (supported by GIZ), the German Environment Agency (UBA), and the EU Horizon 2020 project ENTRANCES, which addresses clean energy transitions in European regions.
By integrating rigorous econometric methods with practical applications, the group contributes to a better understanding of macroeconomic dynamics and enhances the basis for evidence-based policy decisions at national and international levels.
Research Cluster
Economic Dynamics and StabilityYour contact

- Department Macroeconomics
EXTERNAL FUNDING
07.2022 ‐ 12.2026
Evaluation of the InvKG and the federal STARK programme
German Federal Ministry for Economic Affairs and Climate Action
On behalf of the Federal Ministry of Economics and Climate Protection, the IWH and the RWI are evaluating the use of the approximately 40 billion euros the federal government is providing to support the coal phase-out regions..
12.2024 ‐ 02.2026
Macroeconomic Modelling for Energy Investments in Vietnam
Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH
08.2024 ‐ 03.2025
Strengthening Public Financial Management in Vietnam
Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH
01.2023 ‐ 12.2023
Early determination of stable results for gross domestic product or real economic growth and gross value added at federal state level
Landesbetrieb Information und Technik Nordrhein-Westfalen
The project examines whether the accuracy of the first estimate of gross value added and gross domestic product for the federal states can be increased, thereby reducing the extent of subsequent revisions.
01.2018 ‐ 12.2023
EuropeAid (EU Framework Contract)
Europäische Kommission
05.2020 ‐ 09.2023
ENTRANCES: Energy Transitions from Coal and Carbon: Effects on Societies
Europäische Kommission
ENTRANCES aims at examining the effects of the coal phase-out in Europe. How does the phase-out transform society – and what can politics do about it?
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 883947.
10.2019 ‐ 01.2023
Climate Resilient Economic Development
Climate change has a substantial impact on economic growth and a country’s development. This increases the need for reliable and viable approaches to assessing the impact of climate risks and potential adaptation scenarios. Political decision-makers in ministries of planning and economy need sound forecasts in order to design and finance adequate economic policy instruments and actively to take countermeasures. In the pilot countries (Georgia, Kazakhstan and Vietnam), climate risk is included in macroeconomic modelling, enabling the results to be integrated into the policy process so as to facilitate adapted economic planning. The IWH team is responsible for macroeconomic modelling in Vietnam.
07.2016 ‐ 12.2018
Climate Protection and Coal Phaseout: Political Strategies and Measures up to 2030 and beyond
01.2017 ‐ 12.2017
Support to Sustainable Economic Development in Selected Regions of Uzbekistan
01.2017 ‐ 12.2017
Short-term Macroeconomic Forecasting Model in Ministry of Economic Development and Trade of Ukraine
01.2016 ‐ 12.2017
Development of analytical tools based on Input-Output table
The aim of the project was the development of an analytical tool to assess the gains and losses of possible state programs supporting the development of the private sector of the Tajik economy.
11.2015 ‐ 12.2016
Employment and Development in the Republic of Uzbekistan
Support to sustainable economic development in selected regions of Uzbekistan
05.2016 ‐ 05.2016
Framework and Finance for Private Sector Development in Tajikistan
02.2016 ‐ 04.2016
Macroeconomic Reforms and Green Growth - Assessment of economic modelling capacity in Vietnam
10.2015 ‐ 03.2016
Improved Evidence-based Policy Making - GIZ Tadschikistan
Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH
Refereed Publications

Coal Phase-out in Germany – Implications and Policies for Affected Regions
in: Energy, April 2020
Abstract
The present study examines the consequences of the planned coal phase-out in Germany according to various phase-out pathways that differ in the ordering of power plant closures. Soft-linking an energy system model with an input-output model and a regional macroeconomic model simulates the socio-economic effects of the phase-out in the lignite regions, as well as in the rest of Germany. The combination of two economic models offers the advantage of considering the phase-out from different perspectives and thus assessing the robustness of the results. The model results show that the lignite coal regions will exhibit losses in output, income and population, but a faster phase-out would lead to a quicker recovery. Migration to other areas in Germany and demographic changes will partially compensate for increasing unemployment, but support from federal policy is also necessary to support structural change in these regions.

Nowcasting East German GDP Growth: a MIDAS Approach
in: Empirical Economics, No. 1, 2020
Abstract
Economic forecasts are an important element of rational economic policy both on the federal and on the local or regional level. Solid budgetary plans for government expenditures and revenues rely on efficient macroeconomic projections. However, official data on quarterly regional GDP in Germany are not available, and hence, regional GDP forecasts do not play an important role in public budget planning. We provide a new quarterly time series for East German GDP and develop a forecasting approach for East German GDP that takes data availability in real time and regional economic indicators into account. Overall, we find that mixed-data sampling model forecasts for East German GDP in combination with model averaging outperform regional forecast models that only rely on aggregate national information.

Should Forecasters Use Real‐time Data to Evaluate Leading Indicator Models for GDP Prediction? German Evidence
in: German Economic Review, No. 4, 2019
Abstract
In this paper, we investigate whether differences exist among forecasts using real‐time or latest‐available data to predict gross domestic product (GDP). We employ mixed‐frequency models and real‐time data to reassess the role of surveys and financial data relative to industrial production and orders in Germany. Although we find evidence that forecast characteristics based on real‐time and final data releases differ, we also observe minimal impacts on the relative forecasting performance of indicator models. However, when obtaining the optimal combination of soft and hard data, the use of final release data may understate the role of survey information.

Expectation Formation, Financial Frictions, and Forecasting Performance of Dynamic Stochastic General Equilibrium Models
in: Historical Social Research, No. 2, Special Issue: Governing by Numbers 2019
Abstract
In this paper, we document the forecasting performance of estimated basic dynamic stochastic general equilibrium (DSGE) models and compare this to extended versions which consider alternative expectation formation assumptions and financial frictions. We also show how standard model features, such as price and wage rigidities, contribute to forecasting performance. It turns out that neither alternative expectation formation behaviour nor financial frictions can systematically increase the forecasting performance of basic DSGE models. Financial frictions improve forecasts only during periods of financial crises. However, traditional price and wage rigidities systematically help to increase the forecasting performance.

For How Long Do IMF Forecasts of World Economic Growth Stay Up-to-date?
in: Applied Economics Letters, No. 3, 2019
Abstract
This study analyses the performance of the International Monetary Fund (IMF) World Economic Outlook output forecasts for the world and for both the advanced economies and the emerging and developing economies. With a focus on the forecast for the current year and the next year, we examine the durability of IMF forecasts, looking at how much time has to pass so that IMF forecasts can be improved by using leading indicators with monthly updates. Using a real-time data set for GDP and for indicators, we find that some simple single-indicator forecasts on the basis of data that are available at higher frequency can significantly outperform the IMF forecasts as soon as the publication of the IMF’s Outlook is only a few months old. In particular, there is an obvious gain using leading indicators from January to March for the forecast of the current year.
Working Papers

Conditional Macroeconomic Forecasts: Disagreement, Revisions and Forecast Errors
in: IWH Discussion Papers, No. 7, 2021
Abstract
Using data from the European Central Bank‘s Survey of Professional Forecasters, we analyse the role of ex-ante conditioning variables for macroeconomic forecasts. In particular, we test to which extent the heterogeneity, updating and ex-post performance of predictions for inflation, real GDP growth and the unemployment rate are related to assumptions about future oil prices, exchange rates, interest rates and wage growth. Our findings indicate that inflation forecasts are closely associated with oil price expectations, whereas expected interest rates are used primarily to predict output growth and unemployment. Expectations about exchange rates and wage growth also matter for macroeconomic forecasts, albeit less so than oil prices and interest rates. We show that survey participants can considerably improve forecast accuracy for macroeconomic outcomes by reducing prediction errors for external conditions. Our results contribute to a better understanding of the expectation formation process of experts.

Disentangling Covid-19, Economic Mobility, and Containment Policy Shocks
in: IWH Discussion Papers, No. 2, 2021
Abstract
We study the dynamic impact of Covid-19, economic mobility, and containment policy shocks. We use Bayesian panel structural vector autoregressions with daily data for 44 countries, identified through sign and zero restrictions. Incidence and mobility shocks raise cases and deaths significantly for two months. Restrictive policy shocks lower mobility immediately, cases after one week, and deaths after three weeks. Non-pharmaceutical interventions explain half of the variation in mobility, cases, and deaths worldwide. These flattened the pandemic curve, while deepening the global mobility recession. The policy tradeoff is 1 p.p. less mobility per day for 9% fewer deaths after two months.

Is there an Information Channel of Monetary Policy?
in: IWH Discussion Papers, No. 17, 2020
Abstract
Exploiting the heteroscedasticity of the changes in short-term and long-term interest rates and exchange rates around the FOMC announcement, we identify three structural monetary policy shocks. We eliminate the predictable part of the shocks and study their effects on financial variables and macro variables. The first shock resembles a conventional monetary policy shock, and the second resembles an unconventional monetary shock. The third shock leads to an increase in interest rates, stock prices, industrial production, consumer prices, and commodity prices. At the same time, the excess bond premium and uncertainty decrease, and the U.S. dollar depreciates. Therefore, this third shock combines all the characteristics of a central bank information shock.

Integrated Assessment of Epidemic and Economic Dynamics
in: IWH Discussion Papers, No. 4, 2020
Abstract
In this paper, a simple integrated model for the joint assessment of epidemic and economic dynamics is developed. The model can be used to discuss mitigation policies like shutdown and testing. Since epidemics cause output losses due to a reduced labor force, temporarily reducing economic activity in order to prevent future losses can be welfare enhancing. Mitigation policies help to keep the number of people requiring intensive medical care below the capacity of the health system. The optimal policy is a mixture of temporary partial shutdown and intensive testing and isolation of infectious persons for an extended period of time.

How Forecast Accuracy Depends on Conditioning Assumptions
in: IWH Discussion Papers, No. 18, 2019
Abstract
This paper examines the extent to which errors in economic forecasts are driven by initial assumptions that prove to be incorrect ex post. Therefore, we construct a new data set comprising an unbalanced panel of annual forecasts from different institutions forecasting German GDP and the underlying assumptions. We explicitly control for different forecast horizons to proxy the information available at the release date. Over 75% of squared errors of the GDP forecast comove with the squared errors in their underlying assumptions. The root mean squared forecast error for GDP in our regression sample of 1.52% could be reduced to 1.13% by setting all assumption errors to zero. This implies that the accuracy of the assumptions is of great importance and that forecasters should reveal the framework of their assumptions in order to obtain useful policy recommendations based on economic forecasts.