Area fees have become an increasingly important component of forest revenue systems in tropical developing countries. They are commonly viewed as having a neutral impact on decisions by timber concessionaires. This view is incorrect. Using both theoretical and empirical models, we demonstrate that area fees can induce concessionaires to accelerate timber harvests and to harvest more selectively. In Cameroon, area fees at recent levels create an incentive for concessionaires to harvest forests in half the estimated sustained-yield period. Countries that wish to encourage concessionaires to comply with sustained-yield requirements must implement measures that counter the depletion-accelerating effects of area fees.

We analyze the impact of land conservation policies on income distribution using a two-sector model. We find that conservation policies can have important distributional effects through changes in rents and wages. We show how aggregate rents rise when protected areas increase despite the reduction of land availability. Simultaneously, real wages decrease in consequence of higher agricultural prices. These distributional changes also affect the efficiency of conservation policies since higher rents lead to deforestation elsewhere. Results suggest that Pareto improving compensation should also be aimed at agricultural workers.

In this paper we study the cost-effective allocation of the land in the Cordilleran Protection Area (CPA), Region VIII, Chile, for the conservation of a highly threatened species: the Huemul (Hippocamelus bisulcus). Using a production possibilities frontier (PPF) approach, a linear programming optimization model for a ten-year time period is proposed. Our model takes into account both the preferences of the species for different habitats and the opportunity cost of the land. We evaluate different possibilities of land allocation and identify cost-effective alternatives in the provision of both conservation and income.

The results confirm the hypothesis that both the population of Huemul and income from economic activities can be increased compared with current levels. Therefore the current allocation of the land in the CPA is not cost-effective.

A bioeconomic model is used to study the effect of Prosopis juliflora, an exotic tree, on diverse agents in Ranthambhore National Park. Tigers prey on wild herbivores, cattle, and goats that compete with each other to feed on green biomass, i.e. leaves and grass. There are four agents: goat owner, cattle owner, wood gatherer, and park manager. It is shown that there is an inherent trade-off between the number of tigers and village livestock that are grazing. Prosopis juliflora makes management of this trade-off more difficult. The four agents have different interests in the park, and a different ranking of the four scenarios that are simulated.

Rivers can be both givers of life and takers of life. Investments that provide protection against flooding are often beneficial during normal or low flows. Investments such as storage reservoirs are long lived, separating construction and management operations. With international rivers, the absence of enforcement mechanisms may preclude infrastructure collaboration. Where physical infrastructure is in an upstream nation, downstream impacts may be ignored after the structure has been completed. Using a game theoretic model, it is shown that downstream cooperation may only be rational when flooding is the primary downstream impact. A stylized arid developing region and humid developed region are compared. Potential gains from collaboration are greatest in arid regions, but may be difficult to achieve. There may be little scope for capturing the gains from basin level management if economic integration does not extend beyond water issues.

This paper studies the impact of the largest conservation set-aside program in the developing world: China's Grain for Green program, on poverty alleviation in rural areas. Based on a large-scale survey, we find that the program was implemented mostly in the areas of China that are fairly poor. In addition, we show that income from livestock activities and some types of asset holdings of participants have increased significantly more than those of non-participants (due to program effects). Only weak evidence is provided demonstrating that participating households have begun to shift their labor into the off-farm sectors. Overall, the results suggest that the program has been moderately successful in achieving its poverty alleviation objectives.