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Modeling Variable Renewable Energy Systems: The Role of Weather Uncertainty, Heating and Long-Duration Storage

Diese Dissertation behandelt Herausforderungen bei der Modellierung variabler erneuerbarer Energiesysteme. Ein besonderer Schwerpunkt liegt auf der Rolle von Wettervariabilität und -unsicherheit, Langfristspeichern sowie dem Wärmesektor. Kapitel 1 kontextualisiert und motiviert die Fragestellungen der nachfolgenden Kapitel. Kapitel 2 testet verschiedene Konfigurationen eines stabilisierten und parallelisierten ...

Utilisation of Reactive Ionic Liquids for Energy Storage and Regulation of the Power Grid

Chlorine is an essential feedstock for polymers and pharmaceuticals, with annual production exceeding 100 Mt. Nearly all Cl2 is obtained by chlor–alkali electrolysis, which consumes about 2.58 MWh of electricity per tonne. Renewable energies such as wind and solar would lower CO2 emissions, but electrolysers would then have to adopt to fluctuating, renewable energies while downstream processes still ...

Zum Zusammenhang sozialer Ungleichheit mit Pflegerisiken und Lebenserwartung

Effects of Changing the Incentive Strategy on Panel Performance: Experimental Evidence From a Probability-Based Online Panel of Refugees

This study investigated how changing the mode of incentive administration between two panel waves, spaced six months apart, affected longitudinal survey response. A split-ballot incentive experiment was used to compare shifting from an unconditional pre-paid incentive mode in the first wave to a conditional post-paid mode in the second wave, versus consistently using a conditional post-paid mode across ...

“Markets need clear rules”: DIW's Firms and Markets Department introduces itself

[English subtitles, German language video] The Firms and Markets Department at DIW Berlin researches how market rules and their enforcement strengthen competition and the economy. The focus is on business decisions, consumer preferences, and the impact of policy interventions. Using modern methods, the team provides important insights for fair and efficient economic policy—from digitalization to...

Post-Migration Stress Mediates Associations Between Potentially Traumatic Peri-Migration Experiences and Mental Health Among Middle Eastern Refugees in Germany

Background On their way to host countries, refugees are often exposed to severe adversity, including cumulative experiences of fraud, extortion, robbery, detention, and shipwrecks, as well as prolonged, life-threatening small boat crossings. However, little research has examined the long-term impact of such peri-migration stressors on subsequent stress and mental health after arrival. This study explored ...

Geopolitical Tensions Fuel Currency Competition but US Dollar and Euro Remain Hard to Displace

Geopolitical frictions and high levels of uncertainty in US policy are driving countries to reduce dependence on the US dollar and implement new policies to promote their own currencies for settling cross-border trade. This Weekly Report analyzes the reactions of firms to such measures, focusing on China’s efforts to promote the renminbi globally. Leveraging detailed French customs data, the findings ...

Being and Consciousness: Fiscal Attitudes according to HANK

Attitudes toward fiscal policy differ: fiscal conservatism and fiscal liberalism vary in their willingness to tolerate budget deficits. We challenge the view that such attitudes reflect national preferences. Instead, we offer an economic explanation based on a two-country Heterogeneous Agent New Keynesian model, bringing its implicit political economy dimension to the forefront. We compute the welfare ...

Social and Regional Inequalities in the Sense of Safety in Germany

The public’s perceived sense of safety influences many domains in significant ways: It impacts individual behavior, life quality, consumption behavior, and even political views as well as government action. Using data from the Socio-Economic Panel (SOEP) and the German Federal Government’s 2024 Gleichwertigkeitsbericht (Equivalence Report), the development as well as the regional and social distribution ...

Public Communication and Collusion: New Screening Tools for Competition Authorities

Competition authorities increasingly rely on economic screening tools to identify markets where firms deviate from competitive norms. Traditional screening methods assume that collusion occurs through secret agreements. However, recent research highlights that firms can use public announcements to coordinate decisions, reducing competition while avoiding detection. We propose a novel approach to screening ...