Sticky Prices or Sticky Wages? An Equivalence Result
Florin Bilbiie, Mathias Trabandt
Review of Economics and Statistics,
forthcoming
Abstract
We show an equivalence result in the standard representative agent New Keynesian model after demand, wage markup and correlated price markup and TFP shocks: assuming sticky prices and flexible wages yields identical allocations for GDP, consumption, labor, inflation and interest rates to the opposite case- flexible prices and sticky wages. This equivalence result arises if the price and wage Phillips curves' slopes are identical and generalizes to any pair of price and wage Phillips curve slopes such that their sum and product are identical. Nevertheless, the cyclical implications for profits and wages are substantially different. We discuss how the equivalence breaks when these factor-distributional implications matter for aggregate allocations, e.g. in New Keynesian models with heterogeneous agents, endogenous firm entry, and non-constant returns to scale in production. Lastly, we point to an econometric identification problem raised by our equivalence result and discuss possible solutions thereof.
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Ecological Preferences and the carbon Intensity of Corporate Investment
Michael Koetter, Felix Noth
IWH Discussion Papers,
No. 2,
2025
Abstract
Lowering carbon intensity in manufacturing is necessary to transform current production technologies. We test if local agents’ preferences, revealed by vote shares for the Green party during local elections in Germany, relate to the carbon intensity of investments in production technologies. Our sample comprises all investment choices made by manufacturing establishments from 2005-2017. Our results suggest that ecological preferences correlate with significantly fewer carbon-intensive investment projects while investments stimulating growth and reducing carbon emissions increase by 14 percentage points. Both results are more distinct in federal states where the Green Party enjoys political power and local ecological preferences are high.
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08.01.2025 • 1/2025
IWH founds a European centre for microdata research
The Halle Institute for Economic Research (IWH) is once again growing significantly. A new institute unit will generate access to microdata from European countries to facilitate new research on productivity, a prerequisite for prosperity. The IWH's budget increases by almost one million euros per year.
Reint E. Gropp
Javier Miranda
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Reassessing EU Comparative Advantage: The Role of Technology
Filippo di Mauro, Marco Matani, Gianmarco Ottaviano
IWH-CompNet Discussion Papers,
No. 2,
2024
Abstract
Based on the sufficient statistics approach developed by Huang and Ottaviano (2024), we show how the state of technology of European industries relative to the rest of the world can be empirically assessed in a way that is simple in terms of computation, parsimonious in terms of data requirements, but still comprehensive in terms of information. The lack of systematic cross-industry correlation between export specialization and technological advantage suggests that standard measures of revealed comparative advantage only imperfectly capture a country’s technological prowess due to the concurrent influences of factor prices, market size, markups, firm selection and market share reallocation.
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Reassessing EU Comparative Advantage: The Role of Technology
Filippo di Mauro, Marco Matani, Gianmarco Ottaviano
IWH Discussion Papers,
No. 26,
2024
Abstract
Based on the sufficient statistics approach developed by Huang and Ottaviano (2024), we show how the state of technology of European industries relative to the rest of the world can be empirically assessed in a way that is simple in terms of computation, parsimonious in terms of data requirements, but still comprehensive in terms of information. The lack of systematic cross-industry correlation between export specialization and technological advantage suggests that standard measures of revealed comparative advantage only imperfectly capture a country’s technological prowess due to the concurrent influences of factor prices, market size, markups, firm selection and market share reallocation.
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12.12.2024 • 31/2024
Frosty prospects for the German economy
The German economy will continue to stagnate in winter 2024/2025. Industry is suffering from a loss of international competitiveness. For this reason and due to the unclear economic policy outlook, firms and consumers are holding back on spending, although incomes have increased recently. Consumer spending will only increase more strongly once the uncertainty subsides. According to the winter forecast of the Halle Institute for Economic Research (IWH), gross domestic product in Germany is expected to fall by 0.2% in 2024 and to expand by 0.4% in 2025. In September, the IWH forecast had still assumed a zero growth in 2024 and a growth of 1.0% in 2025. In East Germany, gross domestic product will increase by 0.5% both this year and in 2025.
Oliver Holtemöller
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Konjunktur aktuell: Frostige Aussichten für die deutsche Wirtschaft
Konjunktur aktuell,
No. 4,
2024
Abstract
Zur Jahreswende dürfte die weltweite Produktion weiterhin in etwa so schnell wie in der Dekade vor der Pandemie expandieren. Die Konjunktur im Euroraum ist nur verhalten, und die Stagnation der deutschen Wirtschaft setzt sich fort. Die Industrie verliert an internationaler Wettbewerbsfähigkeit. Unternehmen und Verbraucher halten sich aufgrund unklarer wirtschaftspolitischer Aussichten mit ihren Ausgaben zurück. Das Bruttoinlandsprodukt dürfte im Jahr 2024 um 0,2% sinken und im Jahr 2025 um 0,4% expandieren.
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Mittelfristige Projektion der gesamtwirtschaftlichen Entwicklung und Szenarien für die Erreichung der gesetzlichen Emissionsziele
Andrej Drygalla, Katja Heinisch, Oliver Holtemöller, Axel Lindner, Alessandro Sardone, Christoph Schult, Götz Zeddies
Konjunktur aktuell,
No. 4,
2024
Abstract
Das Produktionspotenzial der deutschen Wirtschaft wächst mittelfristig (2023 bis 2029) mit einer jahresdurchschnittlichen Rate von 0,3% und damit deutlich schwächer als in den Jahren zuvor. Dies ist auf eine ungünstigere Entwicklung aller drei Faktoren (Arbeitsvolumen, Kapitalstock, totale Faktorproduktivität) zurückzuführen. Das potenzielle Wachstum wird insbesondere durch den Rückgang der durchschnittlichen Arbeitszeit gedämpft.
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IWH-Flash-Indikator IV. Quartal 2024 und I. Quartal 2025
Katja Heinisch, Oliver Holtemöller, Axel Lindner, Birgit Schultz
IWH-Flash-Indikator,
No. 4,
2024
Abstract
Der deutsche Konjunkturmotor stottert weiter vor sich hin. Obwohl das Bruttoinlandsprodukt (BIP) im dritten Quartal 2024 um 0,2% zunahm, liegt es immer noch unter dem Niveau vom ersten Quartal 2024, da das zweite Quartal nach neuesten Zahlen weitaus schwächer ausgefallen ist als zuvor gemeldet (vgl. Abbildung 1). Der leichte Zuwachs im dritten Quartal dürfte dabei vor allem auf gestiegene staatliche und private Konsumausgaben zurückzuführen sein. In den Unternehmen ist die Stimmung weiterhin trüb und die wirtschaftspolitische Unsicherheit dürfte weiterhin hoch bleiben. Zudem belasten nach wie vor gestiegene Energie- und Lohnkosten die Investitionsbereitschaft der Unternehmen. Alles in allem dürfte das Bruttoinlandsprodukt (BIP) laut IWH-Flash-Indikator im vierten Quartal 2024 stagnieren. Für den Jahresbeginn 2025 deuten allerdings die Frühindikatoren auf eine Belebung der wirtschaftlichen Aktivitäten und einen Anstieg des BIP um 0,4% hin. Diese reflektieren jedoch noch nicht die jüngsten politischen Ereignisse in den USA und in Deutschland.
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Climate-resilient Economic Development in Vietnam: Insights from a Dynamic General Equilibrium Analysis (DGE-CRED)
Andrej Drygalla, Katja Heinisch, Christoph Schult
IWH Technical Reports,
No. 1,
2024
Abstract
In a multi-sector and multi-region framework, this paper employs a dynamic general equilibrium model to analyze climate-resilient economic development (DGE-CRED) in Vietnam. We calibrate sector and region-specific damage functions and quantify climate variable impacts on productivity and capital formation for various shared socioeconomic pathways (SSPs 119, 245, and 585). Our results based on simulations and cost-benefit analyses reveal a projected 5 percent reduction in annual GDP by 2050 in the SSP 245 scenario. Adaptation measures for the dyke system are crucial to mitigate the consumption gap, but they alone cannot sufficiently address it. Climate-induced damages to agriculture and labor productivity are the primary drivers of consumption reductions, underscoring the need for focused adaptation measures in the agricultural sector and strategies to reduce labor intensity as vital policy considerations for Vietnam’s response to climate change.
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