In this paper we develop a micro ecosystem model whose basic entities are representative organisms which behave as if maximizing their net offspring under constraints. Net offspring is increasing in prey biomass intake, declining in the loss of own biomass to predators and Allee's Law applies....

Based on economic methodology we model an ecosystem with two species in predator-prey relationship: mice feed on grain and grain feeds on a resource. With optimizing behavior of individual organismus a short-run ecosystem equilibrium is defined and characterized that depends on the farmer's use...

Based on economic methodology we model an ecosystem with two species in predator-prey relationship: mice feed on grain and grain feeds on a resource. With optimizing behaviour of individual organisms a short-run ecosystem equilibrium is defined and characterized that depends on the farmer's use...

In this paper we develop a micro ecosystem model whose basic entities are representative organisms which behave as if maximizing their net offspring under constraints. Net offspring is increasing in prey biomass intake, declining in the loss of own biomass to predators and Allee's Law applies....

This paper studies the formation of self-enforcing global environmental agreements in a world economy with international trade and two groups of countries that differ with respect to fuel demand and environmental damage. It investigates whether the signatories threat to embargo (potential) free...

In a multi-country model with interconnected markets for fossil fuel and deposits some countries fight climate damage by purchasing and preserving fossil fuel deposits, which would be exploited otherwise. We analyze the effectiveness of such a deposit policy, when that policy stands alone or is...

This paper studies the formation of self-enforcing global environmental agreements in a world economy with international trade and two groups of countries that differ with respect to fuel demand and environmental damage. It investigates whether the signatories’ threat to embargo (potential)...

Ecological systems (ecosystems, for short) are complex systems of interacting species, plants and animals, where each of the species consists of individual organisms that interact with organisms of the same or other species in various ways: they compete for scare resources and they are involved...

In this paper we reexamine the issue of allocating a natural resource 'material' that is extracted, used for producing a consumption good, recycled, and that may cause environmental damage when it is finally landfilled without prior waste treatment. The 'material' explicity enters the analytisis...

The population dynamics in a food chains are derived from a sequence of short- run equilibria of an ecosystem where predator species demand prey biomass, supply own biomass to their predators and are assumed to behave as if they maximize net biomass intake. Introducing prices as scarcity...