This paper investigates whether the family status of a company’s top officer affects managerial replacement decisions in UK firms. We report evidence that family firms are characterized by higher levels of board control and weak internal governance in the form of independent company board structures. Consistent with a managerial entrenchment hypothesis, we find evidence that family CEOs are les...

Comorbid mental disorders are common among suicide decedents. It is unclear if mental disorders in combination confer additive risk for suicide, in other words, if risk associated with two disorders is approximately the sum of the risk conferred by each disorder considered separately, or if there are departures from additivity such that the combined risk is less (i.e., subadditive) or more than...

BACKGROUND When general practitioners (GPs) act contrary to their own standards of good practice, they usually cite patient demands as the main reason. However, up until now, studies have relied on doctors' recollections of departures from their own norms, which may be unreliable. AIM To systematically explore GPs' motives for deliberate departures from their own conception of good practice. ...

In the limit where a transient signal is comprised of very large frequencies, spatial regions within an inhomogeneous medium that influence the propagation from a source to a receiver lie along one or more ray paths. At lower frequencies for which the geometrical acoustic approximation is of borderline applicability, the regions that influence such transient signals are extended because of diff...

This work examines the azimuthally averaged boundary layer structure of a numerically simulated hurricane. We nominally define the hurricane boundary layer as the layer in which the effects of surface friction are associated with significant departures from gradient wind balance. The boundary layer in the intensifying primary and forming secondary eyewalls is found to be nonlinear. At large rad...