Suche

Comparison of Power Sector Models by Analyzing the Impact of Modeling Features on Optimal Capacity Expansion

The transition towards decarbonized energy systems requires the expansion of renewable and flexibility technologies in power sectors. In a model comparison, we examine the optimal expansion of such technologies with six capacity expansion power system models. The technologies under investigation include base- and peak-load power plants, electricity storage, and transmission. We define four highly simplified ...

Loneliness During a Nationwide Lockdown and the Moderating Effect of Extroversion

Loneliness levels were assessed in a longitudinal, nationwide sample (N total = 6,010) collected over the course of the first 3 months of the COVID-19 pandemic in Germany. When in-person social contact restrictions were put in place, loneliness increased significantly compared to prepandemic levels but began to decrease again even before contact restrictions were eased. The loneliness costs were distributed ...

Economic Effects of the COVID-19 Pandemic on Entrepreneurship and Small Businesses

The existential threat to small businesses, based on their crucial role in the economy, is behind the plethora of scholarly studies in 2020, the first year of the COVID-19 pandemic. Examining the 14 contributions of the special issue on the "Economic Effects of the COVID-19 Pandemic on Entrepreneurship and Small Businesses," the paper comprises four parts: a systematic review of the literature on the ...

The Productivity Puzzle in Business Services

In Germany, the productivity of professional services, a sector dominated by micro and small firms, declined by 40 percent between 1995 and 2014. This productivity decline also holds true for professional services in other European countries. Using a German firm-level dataset of 700,000 observations between 2003 and 2017, we analyze this largely uncovered phenomenon among professional services, the ...

Economic Effects of the COVID-19 Pandemic on Entrepreneurship and Small Businesses

The existential threat to small businesses, based on their crucial role in the economy, is behind the plethora of scholarly studies in 2020, the first year of the COVID-19 pandemic. Examining the 15 contributions of the special issue on the “Economic effects of the COVID-19 pandemic on entrepreneurship and small businesses,” the paper comprises four parts: a systematic review of the literature on the ...

Gleiche Erbchancen für Frauen und Männer? Zur geschlechtsspezifischen Bedeutung von Erbschaften für die Alterssicherung

In Deutschland bestehen ein Gender-Pay-Gap, ein Gender-Wealth-Gap und ein Gender-Pension-Gap zuungunsten von Frauen. Ziel dieses Beitrags ist erstens zu untersuchen, obzudem ein Gender-Inheritance-Gap vorliegt, also Männer und Frauen ungleiche Erbchancenhaben. Zweitens wird untersucht, ob Erbschaften für die Alterssicherung von Frauenund Männern gleichermaßen von Bedeutung sind. Datengrundlage ist ...

The Development of Life Goals across the Adult Lifespan

ObjectivesLife goals are important organizing units for individual agency in development. On a societal level, they align with age-normative developmental tasks; on the individual level, they guide people’s attempts at shaping their own development. This study investigates the development of life goals across the adult lifespan with a focus on differences regarding gender, parental status, education, ...

DySiMo Dokumentation: Version 1.0

Mexico and U.S. Power Systems under Variations in Natural Gas Prices

This study examines the impact of natural gas prices on the power systems of Mexico and the United States. For this, we develop an integrated modeling framework by soft linking three different techno-economic bottom-up models of the power and energy systems, one partial equilibrium model of the natural gas sector, and a partial equilibrium model of the Mexican energy sector. Our results show several ...

SOEP-Core – 2020: Haushaltsfragebogen, Stichproben A-L3, M1-M2 + N-Q