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Changes in Working Hours Are Driving Earnings Inequality

According to Socio-Economic Panel (SOEP) data, inequality in gross monthly earnings in Germany increased significantly between 1993 and 2003 and has been stagnating at a high level since 2008. As this Weekly Report shows, the increase is not being driven by higher hourly wage inequality, but rather by working hours: In recent years, employees with a high hourly wage work more than previously compared ...

The Impact of Public Procurement on Financial Barriers to Green Innovation: Evidence from European Community Innovation Survey

The purpose of this study is to identify whether an innovative company’s likelihood of facing financial constraints is different when the company possesses a public procurement contract (PP). Theory suggests that the treatment effects of public procurement, particularly when mediated by the demand-pull effect, may lower a company’s funding constraints for innovation. We test this theory and apply extended ...

Knappes Gas – Optionen zur Verringerung der Deckungslücke in Deutschland

In this article, we provide the results of a simple quantitative analysis of the potential remedies to reduce the supply gap in Germany that arises if Russia stops delivering natural gas. We take into account the supply potential of other suppliers, and combine this with an analysis of the additional supply potential by stopping electricity generation from natural gas. Moreover, we investigate the ...

Power Sector Effects of Alternative Production and Storage Options for Green Hydrogen

The use of green hydrogen can support the decarbonization of sectors which are difficult to electrify, such as industry or heavy transport. Yet, the wider power sector effects of providing green hydrogen are not well understood so far. We use an open-source electricity sector model to investigate potential power sector interactions of three alternative supply chains for green hydrogen in Germany in ...

Accounting for Spatiality of Renewables and Storage in Transmission Planning

The current governance process to plan the German energy system omits two options to substitute grid expansion: First, placing renewables closer to demand instead of where site conditions are best. Second, utilizing storage instead of additional transmission infrastructure to prevent grid congestion. In the paper, we apply a comprehensive capacity expansion model based on the AnyMOD modeling framework ...

SOEP-IS 2020 – INNO_H: Household-Variables from the Innovation Modules

SOEP-IS 2020 – INTV: Variables about the Interviewers

Pension Wealth and the Gender Wealth Gap

We examine the gender wealth gap with a focus on pension wealth and statutory pension rights. By taking into account employment characteristics of women and men, we are able to identify the extent to which the redistributive effect of pension rights reduces the gender wealth gap. The data for our analysis come from the German Socio-Economic Panel (SOEP), one of the few surveys that collects information ...

Parental Leave Benefits and Child Penalties

I use the universe of tax returns in Germany and a regression kink design to estimate the impact of the benefit amount available to high-earning women after their first childbirth on subsequent within-couple earnings inequality. Lower benefit amounts result in a reduced earnings gap that persists beyond the benefit period for at least nine years after the birth. The longer-term impacts are driven by ...

The Transition to Grandparenthood: No Consistent Evidence for Change in the Big Five Personality Traits and Life Satisfaction

Intergenerational relations have received close attention in the context of population aging and increased childcare provision by grandparents. However, few studies have investigated the psychological consequences of becoming a grandparent. In a preregistered test of grandparenthood as a developmental task in middle and older adulthood, we used representative panel data from the Netherlands (N = 563) ...