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Economies of scale and the optimality of rotational dynamics in forestry

机译:规模经济与林业轮作动态优化

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摘要

Forest harvesting is traditionally analyzed in terms of the Faustmann rotation model. This paper considers the identification of optimal forest harvest regimes using jump controls. This approach enables the structural assumptions of clear-cut technology and identical cycles in perpetuity which are imposed in a Faustmann model to be relaxed. Jump control models permit investigation of the biological and economic conditions which favour continuous growth management regimes as opposed to clear-cut harvest regimes. A numerical solution approach to the jump control model is presented. The link between the harvest cost function and the optimal biomass path is analyzed. Economies of scale are shown to generate rotational harvest as optimal policies.
机译:传统上根据Faustmann旋转模型来分析森林采伐。本文考虑使用跳跃控制来确定最佳森林采伐方式。这种方法可以使在Faustmann模型中施加的明确技术的结构假设和永久性的相同循环变得轻松。跳跃控制模型允许研究有利于持续增长管理制度而不是明确的收获制度的生物和经济条件。提出了跳跃控制模型的数值解法。分析了收获成本函数和最佳生物量路径之间的联系。规模经济被证明可以产生轮作收获,这是最优政策。

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