The notion that there is some crisis of public sector planning is common, and a literature review reveals this concern extends across the social sciences, and even to the conception and working of the modern welfare state. The dissertation links political science and philosophy with organisation theory to explain the parameters and tensions governing planning by the state, and proposes an agenda for liberal democratic planning theory for the 1990s. It is argued that these notions of crisis have a common basis in endemic tensions in the modern state which define the planning context. The instability of this context is heightened by increased turbulence in organizational relations at all levels and in the world economic system, and b...