8Aghion, P. and J. Tirole (1997), Formal and real authoritv in organizations[ J ]. Journal of Political Economy, 105 : 1 - 29.
9Baker, G., R. Gibbons and K. J. Murphy ( 1999 ), Informal authority in organizations, Journal of Law [ J ]. Economics and Organization 15,56 - 73.
10M. C. Jensen, W. H. Meckling (1992). Knowledge, control and organization structure [ A ]. In: L. Werin, H. Hijkander (eds). Contract Economics[ C ]. Cambridge, MA : Basil Blackwell, 138 - 160.
