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Optimal crop protection against climate risk in a dynamic cost-loss decision-making model

Emilio Cerdá, Sonia Quiroga

Abstract


Extreme meteorological events have increased over the last decade and it is widely accepted that it is due to climate change. Some of these extremes such as drought or frost spells largely affect agricultural output that could face a serious decline. Therefore, additional efforts on technology and adaptation become crucial to reduce the effect of climate change on agricultural production. Protection against adverse weather extremes is a significant component of risk management and large protection decisions need dynamic treatment, such as the vineyards or citrus protection against frost (Murphy et al., 1985), the water management for cereal irrigation in drought contexts, and many other risk management problems. The goal of this paper is to obtain the analytical expressions for the optimal actions and minimal expected expenses associated with a dynamic cost-loss model with finite horizon. The optimal policy expressions for this type of situation can help in the management of climate risk in agriculture in a more general approach than numerical solutions.

Keywords


information value, cost-loss ratio, dynamic decision models

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