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Article Dans Une Revue Natural Resource Modeling Année : 2016

A mixed control problem of the management of natural resources

Résumé

In this paper, we study the optimal solutions of a model of natural resource management which allows for both impulse and continuous harvesting policies. This type of model is known in the literature as mixed optimal control problem. In the resource management context, each type of control represents a different harvesting technology, which has a different cost. In particular, we want to know when the following conjecture made by Clark is an optimal solution to this mixed optimal control problem: if the harvesting capacity is unlimited, it is optimal to jump immediately to the steady state of the continuous time problem and then to stay there. We show that under a particular relationship between the continuous and the impulse profit function, the conjecture made by Clark is true. In other cases, however, it is either better to use only continuous control variables or to jump to resource levels which are smaller than the steady state and then let the resource grow back to the steady state. These results emphasize the importance of the cost functions in the modeling of natural resource management.
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Dates et versions

hal-01581047 , version 1 (04-09-2017)

Identifiants

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M.E. Alvarez, S. Di Marco, K. Erdlenbruch, M. Tidball. A mixed control problem of the management of natural resources. Natural Resource Modeling, 2016, 29 (3), pp.353-373. ⟨10.1111/nrm.12085⟩. ⟨hal-01581047⟩
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