Search

Wage Risk and Portfolio Choice: The Role of Correlated Returns

From standard portfolio-choice theory it is well-understood that background risk, overwhelmingly due to wage risk, is one of the central determinants of individuals’ portfolio composition: higher background risk reduces risky investments. However, if background risk is negatively correlated with financial market risk, higher background risk implies more risky investment. We quantify the influence of ...

The inefficiency of a monetary union with heterogeneous agents in the face of common shocks

Fiscal multipliers: do individuals make a difference?

SOEPcampus@Home: Online workshop October 14 and 15, 2021

In order to facilitate novel user's access to the rich data-source of the SOEP, we will host another online-workshop in October. The aim of the workshop is to familiarize novel users with the content and structure of the dataset, its potentials for social-scientific research and accompanying documentation matieral. Practical examples of data management will be discussed. The workshop will last two ...

Renewable Energy Targets and Unintended Storage Cycling: Implications for Energy Modeling

To decarbonize the economy, many governments have set targets for the use of renewable energy sources. These are often formulated as relative shares of electricity demand or supply. Implementing respective constraints in energy models is a surprisingly delicate issue. They may cause a modeling artifact of excessive electricity storage use. We introduce this phenomenon as 'unintended storage cycling', ...

Modeling Flexibility in Energy Systems - A Scenario-Based Comparison of Power Sector Model

Model-based scenario analyses of future energy systems often come to deviating results and conclusions when different models are used. This may be caused by heterogeneous input data and by inherent differences in model formulations. The representation of technologies for the conversion, storage, use, and transport of energy is usually stylized in comprehensive system models in order to limit the size ...

Effects of Decarbonization on the Energy System and Related Employment Effects in South Africa

This paper assesses the impact of decarbonization on the energy system and related employment in South Africa. The cost-minimizing, global energy system model (GENeSYS-MOD) is utilized to project two energy mix scenarios and their associated employment implications at provincial level. While the business as usual (BAU) scenario shows a continuous use of coal capacity in the South African power sector ...

Incubators, Accelerators and Urban Economic Development

We combine theory and evidence on incubator and accelerator programmes and their effects on urban economic development. These structured co-working programmes have grown rapidly. However, a rich descriptive literature reveals little about their impact on participants or surrounding urban areas. We situate programmes in a conceptual framework of co-location tools, theorise objectives and benefits and ...

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 ...