Modelling Contemporary Gatekeeping

Modelling contemporary evolution in stickleback.

During the past decade, two lines of research have advanced our understanding of micro-evolution. On the one hand, a number of studies have generated evidence for strong selection on phenotypes (Kingsolver et al. 2001) and the contemporary (sometimes deemed ‘rapid’) evolution of phenotypic traits (Hendry & Kinnison 1999). On the other hand, other studies have sought to identify the genes that u...

Gatekeeping in health care.

We study the competitive effects of restricting direct access to secondary care by gatekeeping, focusing on the informational role of general practitioners (GPs). In the secondary care market there are two hospitals choosing quality and specialization. Patients, who are ex ante uninformed, can consult a GP to receive an (imperfect) diagnosis and obtain information about the secondary care marke...

General multistage gatekeeping procedures.

A general multistage (stepwise) procedure is proposed for dealing with arbitrary gatekeeping problems including parallel and serial gatekeeping. The procedure is very simple to implement since it does not require the application of the closed testing principle and the consequent need to test all nonempty intersections of hypotheses. It is based on the idea of carrying forward the Type I error r...

Gatekeeping: A critical review

Gatekeeping in the Digital Age

Before the internet, the important news of the day was mainly decided by the print newspapers. This paper addresses whether this is still the case in the digital age by investigating the intermedia agenda-setting influence of print newspapers. We analyzed whether new stories covered on the front pages of newspapers were also covered in other news outlets, and if so who covered them first. This ...