Impact of specialised first-episode psychosis treatment on suicide following initial presentation to mental health services: Retrospective cohort study

Background: Suicide risk in psychosis peaks early in the course, however little is known about the effect on rates of suicide of specialised first-episode psychosis (FEP) programs.

Effectiveness and effects of attempts to regulate the UK petrol industry

This paper evaluates the impact that investigation and regulation of the UK petrol industry has had on the profitability of the companies. Using a gross margin for petrol, we estimate a series of variable parameter autoregressive processes. The results demonstrate that the 1979 Monopolies and Mergers Commission investigation into the industry, caused a long term decline in profit margins in the industry, despite the fact that no recommendations or undertakings were made. This cannot however be said for subsequent investigations.