TY - RPRT A1 - Fahl, Ulrich A1 - Hufendiek, Kai A1 - Kittel, Lena A1 - Siegle, Jonathan A1 - Pahle, Michael A1 - aus dem Moore, Nils A1 - Gruhl, Henri A1 - Nysten, Jana A1 - Kahl, Hartmut A1 - Görlach, Benjamin A1 - Sach, Thobias A1 - Schimmel, Matthias A1 - Kühner, Ann-Kathrin T1 - Industriewende: Wettbewerbseffekte und Carbon Leakage. Neue Politikmaßnahmen im Zuge des Europäischen Green Deal. Ein Ariadne-Kurzdossier. KW - Centre for Sustainability Y1 - 2021 UR - https://ariadneprojekt.de/media/2021/07/Ariadne_Kurzdossier_WettbewerbsfaehigkeitCarbonLeakage_Juli2021.pdf ER - TY - RPRT A1 - Edmondson, Duncan A1 - Flachsland, Christian A1 - aus dem Moore, Nils A1 - Koch, Nicolas A1 - Koller, Florian A1 - Gruhl, Henri A1 - Brehm, Johannes A1 - Levi, Sebastian T1 - Assessing Climate Policy Instrument Pathways: An Application to the German Light Duty Vehicle Sector T2 - Bewertung klimapolitischer Instrumentenmix-Pfade: Eine Anwendung auf leichte Nutzfahrzeuge in Deutschland KW - Centre for Sustainability Y1 - 2022 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b1570-opus4-47130 UR - https://ariadneprojekt.de/publikation/background-assessing-climate-policy-instrument-pathways-an-application-to-the-german-light-duty-vehicle-sector/ U6 - https://doi.org/10.48462/opus4-4713 N1 - This publication is also available in German at the link above. PB - Kopernikus-Projekt Ariadne CY - Potsdam ER - TY - RPRT A1 - Edmondson, Duncan A1 - Flachsland, Christian A1 - aus dem Moore, Nils A1 - Koch, Nicolas A1 - Koller, Florian A1 - Gruhl, Henri A1 - Brehm, Johannes A1 - Levi, Sebastian T1 - Bewertung klimapolitischer Instrumentenmix-Pfade – Eine Anwendung auf leichte Nutzfahrzeuge in Deutschland Y1 - 2022 UR - https://ariadneprojekt.de/publikation/hintergrund-bewertung-klimapolitischer-instrumentenmix-pfade-eine-anwendung-auf-leichte-nutzfahrzeuge-in-deutschland/ PB - Kopernikus-Projekt Ariadne CY - Potsdam ER - TY - JOUR A1 - aus dem Moore, Nils A1 - Brehm, Johannes A1 - Gruhl, Henri T1 - Driving innovation? Carbon tax effects in the Swedish transport sector JF - Journal of Public Economics N2 - Does a carbon tax stimulate low-carbon innovation in the transport sector? We exploit an environmental tax reform in Sweden that introduced both a carbon and a value-added tax on transport fuels. Synthetic control estimates consistently find that the tax reform caused large and significant increases in low-carbon patents. We provide suggestive evidence that the carbon tax drives the effect while fuel price changes with comparable magnitude did not significantly affect low-carbon innovation. Our findings suggest that salient carbon prices may foster low-carbon innovation more effectively than fuel price elasticity estimates suggest. KW - Carbon tax; Low-carbon innovation; Technological change; Synthetic control; Salience Y1 - 2025 U6 - https://doi.org/10.1016/j.jpubeco.2025.105444 SN - 0047-2727 VL - 248 ER - TY - JOUR A1 - Gruhl, Henri A1 - Brehm, Johannes A1 - Ghosh, Arijit A1 - Breidenbach, Philipp A1 - aus dem Moore, Nils T1 - Adjusting to the New Normal: River Flood Risk and the Real Estate Market JF - Environmental and Resource Economics N2 - Do individuals learn from salient river floods and update their risk perceptions accordingly? We exploit the Western European flood in 2021 to estimate changes in property values across German flood risk regions. Flood-prone areas in proximity to the flood or with higher climate change beliefs experience housing price declines, while we observe no statistically significant effects in other flood risk zones. Our results imply that flood risk discounts in the housing market will not adjust uniformly, which may result in suboptimal capital allocation in areas at risk of future flooding. KW - Flood risk; House prices; Risk updating Y1 - 2025 U6 - https://doi.org/10.1007/s10640-025-00995-x ER - TY - JOUR A1 - Brehm, Johannes A1 - Gruhl, Henri T1 - Leveraging machine learning to understand opposition to environmental tax increases across countries and over time JF - Environmental Research Letters N2 - Taxes targeting fuel, road usage, or carbon emissions for environmental protection often face public opposition. Can widely accessible machine learning methods aid in predicting and understanding opposition to environmental taxes? This study uses the random forest algorithm to predict opposition to increased environmental taxes based on 41 theoretically relevant respondent characteristics. Drawing on nationally representative surveys, we predict individual tax opposition across 28 countries in 2010 and 2020 (N = 70 710). Personal values and environmental evaluations tend to be more influential than demographics in predicting tax opposition, with key variables differing between countries and over time. A lack of commitment to pro-environmental behavior is the most important predictor in emerging economies. Conversely, concerns about environmental issues and prioritization of jobs and prices are influential in high-income countries, gaining prominence over the previous decade. Policymakers can leverage these insights to tailor communication of environmental tax increases in different contexts, emphasizing, for instance, job creation. Y1 - 2024 U6 - https://doi.org/10.1088/1748-9326/ad5d0a VL - 19 IS - 8 PB - IOP Publishing ER - TY - JOUR A1 - Brehm, Johannes A1 - Gruhl, Henri T1 - Increase in concerns about climate change following climate strikes and civil disobedience in Germany JF - Nature Communications N2 - Climate movements have gained momentum in recent years, aiming to create public awareness of the consequences of climate change through salient climate protests. This paper investigates whether concerns about climate change increase following demonstrative protests and confrontational acts of civil disobedience. Leveraging individual-level survey panel data from Germany, we exploit exogenous variations in the timing of climate protests relative to survey interview dates to compare climate change concerns in the days before and after a protest (N = 24,535). Following climate protests, we find increases in concerns about climate change by, on average, 1.2 percentage points. Further, we find no statistically significant evidence that concerns of any subpopulation decreased after climate protests. Lastly, the increase in concerns following protests is highest when concern levels before the protests are low. Y1 - 2024 U6 - https://doi.org/10.1038/s41467-024-46477-4 VL - 15 PB - Springer Science and Business Media LLC ER - TY - JOUR A1 - Edmondson, Duncan A1 - Flachsland, Christian A1 - aus dem Moore, Nils A1 - Koch, Nicolas A1 - Koller, Florian A1 - Gruhl, Henri A1 - Brehm, Johannes T1 - Anticipatory climate policy mix pathways: a framework for ex-ante construction and assessment applied to the road transport sector JF - Climate Policy Y1 - 2024 U6 - https://doi.org/10.1080/14693062.2024.2397440 SN - 1469-3062 ER -