This work presents recent work on ecological economics, sustainability, poverty, resource degradation and decision-making under uncertainty. It explores the allocation of resources in jointly-determined ecological-economic systems. The first of the text's three parts is concerned with the dynamics of joint systems and with the implications of the control and conservation of ecological resources. The second part focuses on the conditioning effect of the economic environment on private law decisions in low income resource-dependent economies. The final part considers the way that decision makers handle the uncertainty that is an integral feature of the evolution of the ecological-economic system.