Prof. Dr. Achim Hagen
Profil
Zusammenfassung
Prof. Dr. Achim Hagen erforscht die politische Ökonomie von Klimapolitik und internationalen Umweltabkommen. Seine Expertise liegt darin, zu verstehen, wie wirtschaftliche Interessen, politische Machtverhältnisse und institutionelle Rahmenbedingungen die Gestaltung und Stabilität von Klimapolitik beeinflussen. Diese Erkenntnisse sind für Unternehmen relevant, die ihre Strategien an sich verändernde Klimapolitik anpassen oder deren Auswirkungen auf ihre Geschäftstätigkeit einschätzen müssen.
Skills
Stammdaten
Identität, Organisation und Kontakt aus HU-FIS.
- Name
- Prof. Dr. Achim Hagen
- Titel
- Prof. Dr.
- Fakultät
- Lebenswissenschaftliche Fakultät
- Institut
- Albrecht Daniel Thaer-Institut für Agrar- und Gartenbauwissenschaften
- Arbeitsgruppe
- Ressourcenökonomie
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- HU-FIS-Profil
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- Zuletzt gescrapt
- 28.6.2026, 01:06:12
Forschungsthemen3
Die Politische Ökonomie der nachhaltigen Transformation des Klima-Finanz-Systems
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 10/2022 - 09/2027 Projektleitung: Prof. Dr. Achim Hagen
Ökonomie des Klimawandels – Verbundprojekt: Fossile Energieträger und Klimapolitik – Stranded Assets, Erwartungen, und die politische Ökonomie des Klimawandels (FoReSee) – Teilprojekt 3: Verteilungseffekte und die politische Ökonomie von Klimapolitik
Quelle ↗Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 10/2018 - 09/2022 Projektleitung: Prof. Dr. Klaus Eisenack
Planspielbasierte Bildung zu erneuerbaren Energien in Deutschland und Osteuropa (KCeast)
Quelle ↗Förderer: Deutsche Bundesstiftung Umwelt Zeitraum: 12/2017 - 01/2020 Projektleitung: Prof. Dr. Klaus Eisenack
Mögliche Industrie-Partner184
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Publikationen25
Top 25 nach Zitationen — Quelle: OpenAlex (BAAI/bge-m3 embedded für Matching).
Diagnostics · 41 Zitationen · DOI
Purpose: The novel photon-counting detector (PCD) technique acquires spectral data for virtual monoenergetic imaging (VMI) in every examination. The aim of this study was the evaluation of the impact of VMI of abdominal arterial vessels on quantitative and qualitative subjective image parameters. Methods: A total of 20 patients that underwent an arterial phase computed tomography (CT) scan of the abdomen with a novel PCD CT (Siemens NAEOTOM alpha) were analyzed regarding attenuation at different energy levels in virtual monoenergetic imaging. Contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) were calculated and compared between the different virtual monoenergetic (VME) levels with correlation to vessel diameter. In addition, subjective image parameters (overall subjective image quality, subjective image noise and vessel contrast) were evaluated. Results: Our research showed decreasing attenuation levels with increasing energy levels in virtual monoenergetic imaging regardless of vessel diameter. CNR showed best overall results at 60 keV, and SNR at 70 keV with no significant difference to 60 keV (p = 0.294). Subjective image quality was rated best at 70 keV for overall image quality, vessel contrast and noise. Conclusions: Our data suggest that VMI at 60–70 keV provides the best objective and subjective image quality concerning vessel contrast irrespective of vessel size.
Journal of Environmental Economics and Management · 26 Zitationen · DOI
We investigate whether trade sanctions against outsiders can foster climate cooperation in self-enforcing international environmental agreements if outsiders retaliate. We find a threshold effect: In small coalitions incentives to be a coalition member decrease whereas in large coalitions they increase. Thus, trade sanctions can be an effective tool in climate policy only after a sufficiently large climate coalition has already been formed. Even if larger stable coalitions are achieved with trade sanctions, implications for global welfare can be adverse, because additional trade distortions trade off with the environmental gains. We identify the USA and Europe as essential members of stable coalitions if outsiders retaliate.
Review of Environmental Economics and Policy · 21 Zitationen · DOI
Many types of capital stocks—natural, physical, and human—stand to lose value because of climate policy and to become “stranded.” The owners of such assets will resist climate policies. We survey the recent climate economics literature and highlight research gaps related to stranded assets. In line with recent literature in political science, we argue that economists can provide more effective policy recommendations by putting greater emphasis on the distributional consequences of asset stranding. Our recommended policies focus on targeting new capital stocks related to energy production and consumption: banning fossil-intensive investment and encouraging investment into renewable and energy-efficient capital. These policies may face less resistance than price-based mechanisms and could improve the credibility of future carbon pricing.
Kooperationen1
Bestätigte Forscher↔Partner-Paare aus HU-FIS — Gold-Standard-Positive für das Matching.
Die Politische Ökonomie der nachhaltigen Transformation des Klima-Finanz-Systems
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