The 118 basic equations of Forrester's urban dynamics model are analysed by forming them into qualitative structural matrices. It is concluded that the endogenous dynamics of the system are determined by only 42 of the 118 stock variables, thus enabling the majority of the equations to be...

Recognition of the nature of problems caused by urban growth in California has led to new legislation to cope with some of the operational difficulties faced by farmers in the urban fringe. Within this environment the California Land Conservation Act (Williamson Act) is intended to have its...

The paper deals with the theoretical problems of setting the mass of evidence now gathered about development planning in Oxford within a wider epistemological framework so that the essentially grounded theory being employed to order and understand that evidence can itself be set in context. From...