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The Dynamics of Recent Refugees’ Language Acquisition: How Do Their Pathways Compare to Those of Other New Immigrants?

Do the processes underlying destination-language acquisition differ between recently arrived refugees and other new immigrants? Based on a well-established model of language learning according to which language fluency is a function of efficiency, incentives, and exposure, this study addresses general processes of language learning as well as conditions specific to refugees. Longitudinal data on refugees ...

Response Quality in Nonprobability and Probability-based Online Panels

Recent years have seen a growing number of studies investigating the accuracy of nonprobability online panels; however, response quality in nonprobability online panels has not yet received much attention. To fill this gap, we investigate response quality in a comprehensive study of seven nonprobability online panels and three probability-based online panels with identical fieldwork periods and questionnaires ...

Split Questionnaire Designs as a Clever Way to Make Surveys Shorter

Revision and Cross-cultural Adaptation of the Human Values Scale for Self-completion Modes

Since its first round, the European Social Survey (ESS) has included a 21-item measure of ten basic human values shared across cultures, known as the Human Values Scale (HVS), developed by Shalom H. Schwartz. Recently, the scale has been revised to a new 20-item HVS with shorter, simpler items (usually only one sentence instead of two sentences per item in the past version) and introducing a single ...

Germany Should Accelerate Its Renewable Energy Transition

Germany’s energy transition relies on variable renewables and electricity use across sectors, and it needs to accelerate. We argue that consistent policy commitments to proven technologies, such as wind and solar power, heat pumps and electric cars are needed.

Patient-driven Information Flow and Practice Style Spillover

Access to information is vital to physicians who make critical treatment decisions that shape patients' lives. Although formal channels, such as professional training, medical databases, and clinical guidelines, are well-documented, little is known about informal learning, in which physicians acquire knowledge from peers or patients. In this paper, I study how patients act as carriers of clinical...

Inventors‘ Personal Experience of Natural Disasters and Green Innovation

We show that personal experiences affect high-stakes economic decisions among inventors. Using matched patent and survey data from French and German inventors linked to natural disaster records, we exploit exogenous variation in disaster exposure. Inventors personally affected by natural disasters subsequently produce 8.2 percent more green patents, primarily driven by emission-reducing mitigation...

Part-time Traps (joint with Jan Berendsen, Iris Kesternich and Christian Pugnaghi Zimpelmann)

Most women reduce their labor supply after childbirth. When children become older, most women spend less time on women spend less time on childcare activities. Yet, female labor supply recovers little as children age and part-time work remains common among mothers of older children. Understanding the motivation behind labor supply choices of women with older children is crucial to design effective...

Raising the Retirement Age for Women. Spillover Effects on Young Adults’ Labor Supply in Brazil**CANCELLED**

CANCELLED DUE TO ILLNESS Latin America is facing rapid population aging. To address the sustainability of contributory pension systems, many countries are considering increasing the retirement age. One such case is Brazil, where a pension reform in 2019 raised the retirement age from 60 to 62 for women. While the effects of such reforms on the labor force participation of older adults and their...

Occupations, Disability Insurance, and Career Choices

Work-limiting disabilities pose a significant risk to the earnings potential and welfare of older workers. While coverage of public disability insurance (DI) systems is almost universal, the risk of becoming dependent on DI varies across occupations. In this paper, I study the value of public DI across different occupations using data from administrative social security records in Germany. I...