In previous papers we have considered the optimal mix of biodiversity in semi-arid rangelands, focusing on the steady state. This paper addresses the question of conservation in the optimal use of rangelands. That is, it considers the optimal trajectory of biodiversity change. There are two...

This study analyses the economic aspects of housing tenure choice in New Zealand, 1960-80. The analysis proceeds by way of the building, refining and estimation of a model of household tenure choice, using a considerable body of micro-level data and aggregate time series.It is argued that the...