The principles of new public management -- market mechanisms, accountability and standards -- have been applied in the education system. These methods are supposed to increase efficiency, but there is also a risk of negative consequences from the services provided if the measures of performance target a reduced range of goals, ignore relevant…

This article will argue that diverse national, regional and local contexts leave different rooms for manoeuvre for school principals. The social technologies applied by the authorities (like accountability systems) can be "tight" or "loose" and so leave little or much room for principals' interpretations of what a good school…