Publikationen des Vorstandsbereichs

Diurnal Coupling between Testosterone and Cortisol from Adolescence

The hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-gonadal (HPG) axes are typically conceptualized as mutually inhibitory systems; however, previous studies have found evidence for positive within-person associations (i.e., coupling) between cortisol and testosterone. One developmental hypothesis is that positive testosterone-cortisol coupling is unique to the adolescent period and ...

Resource Curse Contagion in the Case of Yemen

This study analyses the economic developments in Yemen from the 1970s to today in the context of the resource curse hypothesis. After a brief survey of the resource curse literature, using empirical data, historical accounts, and political (economic) analyses, I confirm that post-reunification Yemen suffers from an intense oil curse. The curse is evidenced by low genuine savings rates, oil-dependency, ...

Influence in the Face of Impunity

We compare dictator and impunity games. In impunity games, responders can reject offers but to no payoff consequence to proposers. Because proposers act under impunity, we should expect the same behavior across games, but experimentally observed behavior varies. Responders indeed exercise the rejection option. This threat psychologically influences proposers. Some proposers avoid rejection by offering ...

Maintaining Perceived Control with Unemployment Facilitates Future Adjustment

Unemployment is a major challenge to individuals' development. An important personal resource to ameliorate the negative impact of unemployment may be perceived control, a general-purpose belief system. Little is known, however, about how perceived control itself changes with the experience of unemployment and what the antecedents, correlates, and consequences of such change in perceived control are ...

Long Working Hours and Alcohol Use: Systematic Review and Meta-analysis of Published Studies and Unpublished Individual Participant Data

Objective To quantify the association between long working hours and alcohol use.Design Systematic review and meta-analysis of published studies and unpublished individual participant data.Data sources A systematic search of PubMed and Embase databases in April 2014 for published studies, supplemented with manual searches. Unpublished individual participant data were obtained from 27 additional studies.Review ...

Confidence Bands for Impulse Responses: Bonferroni vs. Wald

In impulse response analysis estimation uncertainty is typically displayed by constructing bands around estimated impulse response functions. If they are based on the joint asymptotic distribution possibly constructed with bootstrap methods in a frequentist framework, often individual confidence intervals are simply connected to obtain the bands. Such bands are known to be too narrow and have a joint ...

Comparison of Methods for Constructing Joint Confidence Bands for Impulse Response Functions

In vector autoregressive analyses, confidence intervals for individual impulse responses are typically reported in order to indicate the sampling uncertainty in the estimation results. Various methods are reviewed, and a new method for the construction of joint confidence bands, given a prespecified coverage level, for the impulse responses at all horizons considered simultaneously, is proposed. The ...

Secular Changes in Late-Life Cognition and Well-Being: Towards a Long Bright Future with a Short Brisk Ending?

How sociocultural contexts shape individual functioning is of prime interest for psychological inquiry. Secular increases favoring later-born cohorts in fluid intelligence measures are widely documented for young adults. In the current study, we quantified such trends in old age using data from highly comparable participants living in a narrowly defined geographical area and examined whether these ...

Why Did Self-Employment Increase so Strongly in Germany?

Can't Get It out of My Head: Age Differences in Affective Responsiveness Vary with Preoccupation and Elapsed Time after Daily Hassles

To better understand age differences in negative affective responses to daily hassles, the current study investigated how responses may depend on how much time has elapsed after the hassle and how much one still thinks about the hassle. In an experience-sampling approach with mobile phones, 397 participants aged 12 to 88 years reported their momentary activating (e.g., angry) and deactivating (e.g., ...