Within-Country Inequality and the Shaping of a Just Global Climate Policy
Marie Young-Brun, Francis Dennig, Frank Errickson, Stéphane Zuber
Proceedings of the National Academy of Sciences of the United States of America (PNAS),
No. 39,
2025
Abstract
Climate policy design must balance emissions mitigation with concerns for fairness, particularly as climate change disproportionately affects the poorest households within and across countries. Integrated Assessment Models used for global climate policy evaluation have so far typically not considered inequality effects within countries. To fill this gap, we develop a global Integrated Assessment Model representing national economies and subnational income, mitigation cost, and climate damage distribution and assess a range of climate policy schemes with varying levels of effort sharing across countries and households. The schemes are consistent with limiting temperature increases to 2 °C and account for the possibility to use carbon tax revenues to address distributional effects within and between countries. We find that carbon taxation with redistribution improves global welfare and reduces inequality, with the most substantial gains achieved under uniform taxation paired with global per capita transfers. A Loss and Damage mechanism offers significant welfare improvements in vulnerable countries while requiring only a modest share of global carbon revenues in the medium term. The poorest households within all countries may benefit from the transfer scheme, in particular when some redistribution is made at the country level. Our findings underscore the potential for climate policy to advance both environmental and social goals, provided revenue recycling mechanisms are effectively implemented. In particular, they demonstrate the feasibility of a welfare improving global climate policy involving limited international redistribution.
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Data Providers
Data Providers CompNet’s micro-level dataset is made possible through the dedicated contributions of national statistical institutes, central banks, and governmental research…
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Funding Institutions
Funding Institutions At present, CompNet is funded by a group of prominent institutions, including the European Bank for Reconstruction and Development (EBRD) , the European…
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The IAB Job Vacancy Survey: Establishment survey on labor demand and recruitment processes, waves 2000 to 2021 and subsequent quarters 2006 to 2022
Erik-Benjamin Börschlein, André Diegmann, Nicole Gürtzgen, Alexander Kubis, André Pirralha, Laura Pohlan, Martin Popp, Franka Vetter
FDZ-Datenreport,
06
2024
Abstract
The IAB Job Vacancy Survey is a quarterly and representative establishment survey on labor demand and recruitment processes in Germany. The survey identifies the overall stock of vacancies in the German labor market, including those vacancies that are not reported to the Federal Employment Agency (FEA). The first module of the questionnaire collects information about the number and structure of vacancies, future personnel requirements, about the current economic situation and the expected development of participating establishments. The second module enquires about employer attitudes and firm use of current labor market instruments as well as the employer handling of people disadvantaged in the labor market. The third module asks for information about the last new hire and the last case of a failed recruitment effort. The Research Data Centre of the Federal Employment Agency offers the data sets of the survey waves from 2000 onwards.
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Networks
Networks Central-German Doctoral Program Economics (CGDE) The programme connects students with partner universities, providing access to a broad academic network. International…
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Placement News
Placement News IWH-DPE graduate placements 2024: St Andrews and the Bank of England Eleonora Sfrappini from the Financial Markets department and Tommaso Bighelli from the…
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Past Events
Past Events 14. CompNet Annual Conference (Vilnius, 25-26 September 2025) The 14th CompNet Annual Conference, co-hosted with the Bank of Lithuania, took place on 25–26 September…
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3rd TSI Workshop
Presentations 3rd TSI Workshop Vienna The 3rd TSI Workshop, spanning two days, featured presentations and discussions on various aspects of micro data analysis and the Micro Data…
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ProdTalks
CompNet ProdTalks CompNet ProdTalks is a monthly recurring 1.5 hour virtual event, two selected papers will be presented including presentation, discussion and Q&A. The top ic…
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Disentangling Stock Return Synchronicity From the Auditor's Perspective
Iftekhar Hasan, Joseph A. Micale, Qiang Wu
Journal of Business Finance and Accounting,
No. 5,
2024
Abstract
This paper investigates a firm's stock return asynchronicity through the auditor's perspective to distinguish whether this asynchronicity can proxy for the company's firm-specific information or the quality of its information environment. We find a significant and positive association between asynchronicity and audit fees after controlling for auditor quality and other factors that affect audit fees, suggesting that stock return asynchronicity is more likely to capture a company's firm-specific information than its information environment. We also find that asynchronous firms are more likely to receive adverse opinions on their internal controls over financial reporting, but are associated with lower costs of capital and auditor litigation, providing further evidence in support of the firm-specific information argument. Asynchronicity's positive association with audit fees is driven by firms with higher accounting reporting complexity, suggesting stock return asynchronicity captures a firm's complexity, resulting in more significant efforts by the auditor.
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