We develop a bioeconomic model to gain insight into the challenges of Payments for Environmental Services (PES) as applied to protect endangered species given wildlife-livestock disease risks and habitat fragmentation. We show how greater connectivity of habitat creates an endogenous trade-off....

Traditional grazing grounds near Amboseli National Park (Kenya) are being rapidly converted to cropland – a process that closes important wildlife corridors. We use a spatially explicit simulation model that integrates ecosystem dynamics and pastoral decision-making to explore the scope for...

To protect the elephant, trade in ivory has been banned since 1990. In this paper, we demonstrate that this ban's effect on elephant populations is ambiguous. Depending on the discount rate, among other things, the trade ban can either increase or decrease optimal population size. If the...