This paper explores the challenge of defining the scope of a systems model, emphasising three aspects: boundary, granularity and conceptual scope. The significance of these is illustrated by reference to a model of land-use decisions made in villages bordering on the Mafungautsi forest in...

Log pricing and supply arrangements vary between countries. Some countries use open markets to determine log prices while others regulate supply and offer medium to long-term contracts to log buyers. A study of four industrialised countries - the United States, Canada, New Zealand and Australia...

Diameter-limit cutting of stands in the US northeast is a common practice often thought to give the landowner the highest financial returns. A landowner's decision to diameter-limit cut or use some other harvesting option on a given stand involves examining mutually exclusive investments....