Accounting for enforcement costs in the spatial allocation of marine zones.

Marine fish stocks are in many cases extracted above sustainable levels, but they may be protected through restricted-use zoning systems. The effectiveness of these systems typically depends on support from coastal fishing communities. High management costs including those of enforcement may, however, deter fishers from supporting marine management.

Determinants of rural household food security: a comparative analysis of African and Asian studies.

This paper reviews the determinants of rural household food security in Africa and Asia where more than 88% of the world's undernourished people live. A conceptual model is proposed on the basis of the three widely known components of food security: food availability, accessibility and utilisation. This model is used to select a total of 40 peer-reviewed studies carried out over the last decade (20 each from Africa and Asia).