Using lenders who become members of the Task Force on Climate-Related Financial Disclosures (TCFD) as an exogenous shock, we examine whether and how lenders’ commitment to transparent climate-related disclosures affects borrowers’ environmental performance. We find that borrowers of TCFD-member lenders, relative to control firms, significantly improve their environmental performance after the TCFD launch. Lenders’ disclosure commitments influence borrowers through credit rationing and monitoring. Specifically, polluting borrowers face higher borrowing costs, reduced access to credit, and greater incorporation of environmental action covenants in loan agreements. Additionally, polluting borrowers of TCFD-member lenders experience heightened financial constraints. Finally, borrowers of TCFD-member lenders are more likely to adopt the TCFD framework for climate-related disclosure after the TCFD establishment. Together, these findings illuminate the role of lenders in driving corporate environmental performance improvement through their commitment to transparent climate-related disclosures.

Der Klimawandel wirkt sich zunehmend auf die wirtschaftliche Entwicklung in aller Welt aus. Ärmere Haushalte sind dabei den Auswirkungen des Klimawandels stärker ausgesetzt und verletzlicher, sodass der Klimawandel die Ungleichheit wahrscheinlich noch verstärken wird. Politische Maßnahmen zur Verringerung der Treibhausgasemissionen können eine Verschärfung des Klimawandels verhindern, schaffen aber auch ökonomische Gewinner und Verlierer. In diesem Beitrag werden die kombinierten Auswirkungen des Klimawandels und ausgewählter politischer Maßnahmen zur Verringerung der Treibhausgasemissionen auf die wirtschaftliche Ungleichheit untersucht. Die Bewertung erfolgt anhand von acht Modellen für die integrierte Analyse von Klimawandel und wirtschaftlicher Entwicklung, die von verschiedenen Forscherteams unter Verwendung unterschiedlicher Annahmen und Methoden entwickelt wurden. Die Ergebnisse basieren auf historischen Daten und Zukunftsszenarien für zehn Länder in unterschiedlichen Entwicklungsstadien. Die Umsetzung einer ehrgeizigen Klimapolitik im Einklang mit dem Pariser Abkommen führt demnach zu einer geringeren Ungleichheit in der Zukunft als der Verzicht auf Maßnahmen zur Milderung des Klimawandels, auch wenn die Ungleichheit aufgrund der Kosten für die Reduzierung der Treibhausgasemissionen kurzfristig zunimmt. Die Verwendung der Einnahmen aus der Kohlenstoffbepreisung kann dazu beitragen, die Verteilungseffekte der Klimapolitik zu dämpfen und die Ungleichheit kurzfristig sogar zu verringern. Diese Ergebnisse unterstreichen die Rolle von Ausgleichsmechanismen bei der Gestaltung einer fairen und politisch durchsetzbaren Klimapolitik.

While the drastic physical impacts of climate change and related natural hazards are increasingly apparent, little is known about the long-term behavioral consequences of climate change-related experiences. Psychological evidence suggests that climate change (CC)-related experiences induce people to make more climate-friendly choices. Building on Upper Echelons Theory and relevant psychological literature, we investigate whether early-life natural hazard experiences of Chief Executive Officers (CEOs) are associated with more climate-friendly policies during their tenure. Our sample covers decisions taken between 1991 and 2018 by 447 US-born CEOs. While we observe an effect of hazard experiences on climate policies, we do not observe the same effect when focusing only on CC-related experiences. This result is robust across different measures of corporate climate performance.

This paper examines the impact of climate risks on the debt structure of a sample of U.S. firms from 2002 through 2020. Climate risks—mainly physical, regulatory, and transition risks—are associated with a concentrated debt structure for the affected firms. However, when climate risks propagate through the channels of expected bankruptcy costs and sustainability, they are associated with a more diversified debt structure. Additionally, climate risks asymmetrically impact the relationship between access to finance and debt structure. Results from a quasi-natural experiment reaffirm the impact of climate risks on debt structure.

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.

Der Klimawandel und die übermäßige Nutzung natürlicher Ressourcen stellen große Herausforderungen für eine nachhaltige Entwicklung auf der Erde dar. Auf Seite der Unternehmen besteht die Herausforderung darin, Wege zu finden, wie sie Ressourcen schonen und Emissionen senken können. Die Verbraucher wiederum haben über ihr Konsumverhalten Einfluss darauf, welche Produkte Unternehmen überhaupt absetzen können. Nachhaltiger Konsum ist somit ein wichtiger Baustein in der grünen Transformation. In einer jüngst als IWH-Diskussionspapier erschienenen Studie wird untersucht, inwiefern Inflationssorgen den Kauf von Bio-Produkten beeinflussen. Gerade in Zeiten stark steigender Preise könnte die Sorge über das eigene Budget die Sorgen über Klimawandel und Nachhaltigkeit in den Hintergrund treten lassen und sich somit negativ auf den Konsum von oft relativ teuren Bio-Produkten auswirken. Die Ergebnisse der Studie basieren auf einer Befragung von rund 1 200 Teilnehmenden sowie einem Feldexperiment zum tatsächlichen Einkaufsverhalten mit circa 500 Teilnehmenden. Die Ergebnisse zeigen, dass gerade Teilnehmende mit vergleichsweise geringerem Umweltbewusstsein und, damit einhergehend, sowieso schon niedrigerem Anteil an nachhaltigen Produkten nochmals erheblich weniger nachhaltige Produkte konsumieren, sobald sie mit Inflationssorgen konfrontiert werden.

Climate change and inequality are critical and interrelated defining issues for this century. Despite growing empirical evidence on the economic incidence of climate policies and impacts, mainstream model-based assessments are often silent on the interplay between climate change and economic inequality. For example, all the major model comparisons reviewed in IPCC neglect within-country inequalities. Here we fill this gap by presenting a model ensemble of eight large-scale Integrated Assessment Models belonging to different model paradigms and featuring economic heterogeneity. We study the distributional implications of Paris-aligned climate target of 1.5 degree and include different carbon revenue redistribution schemes. Moreover, we account for the economic inequalities resulting from residual and avoided climate impacts. We find that price-based climate policies without compensatory measures increase economic inequality in most countries and across models. However, revenue redistribution through equal per-capita transfers can offset this effect, leading to on average decrease in the Gini index by almost two points. When climate benefits are included, inequality is further reduced, but only in the long term. Around mid-century, the combination of dried-up carbon revenues and yet limited climate benefits leads to higher inequality under the Paris target than in the Reference scenario, indicating the need for further policy measures in the medium term.

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.