Title

Optimal Control Of Locusts In Subsistence Farming Areas

Keywords

Local comparative dynamics; Local stability; Optimal control; Steady-state comparative statics

Abstract

Locust swarms hit subsistence-staple-crop-growing households at random and are not privately controllable. An aerial-spraying optimal control model that supports the said households' livelihood at least expected cost is therefore developed. The qualitative properties of the model are analysed under economically plausible but mild assumptions. The steady state comparative statics reveal that the locust swarm size and the probability of a household's crop being destroyed by a swarm decrease with the number of households, yield per household, and the staple crop's replacement price, and increase with the marginal cost of spraying and the planner's discount rate. A local comparative dynamics analysis is also conducted, as it provides the necessary economic intuition behind other ostensibly anomalous steady-state comparative statics results. © 2007 Elsevier B.V. All rights reserved.

Publication Date

12-1-2008

Publication Title

European Journal of Operational Research

Volume

191

Issue

2

Number of Pages

504-516

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ejor.2007.07.024

Socpus ID

43849106931 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/43849106931

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