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Optimal Control of Locusts in Subsistence Farming Areas

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Author Info
Levy, Amnon () (University of Wollongong)

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Abstract

Locust swarms hit subsistence-staple-crop-growing households at random and are not privately controllable. A regional aerial-spraying scheme that supports these households’ livelihood at the least cost is proposed. The properties of this scheme are analysed and two steady states are identified. The saddle one is socio-economically superior to the stable spiral. Simulations reveal that the respective stationary probability of a household’s crop being devoured by the swarm diminishes with the number of households, yield per household, staple crop’s replacement price and spraying efficacy, but rises with the spraying cost coefficient, locusts’ multiplication rate and public planner’s discount rate.

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File URL: http://www.uow.edu.au/content/groups/public/@web/@commerce/@econ/documents/doc/uow012223.pdf
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Publisher Info
Paper provided by School of Economics, University of Wollongong, NSW, Australia in its series Economics Working Papers with number wp06-10.

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Length: 19 pages
Date of creation: 2006
Date of revision:
Handle: RePEc:uow:depec1:wp06-10

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Postal: School of Economics, University of Wollongong, Northfields Avenue, Wollongong NSW 2522 Australia
Phone: +612 4221-3663
Fax: +612 4221-3725
Web page: http://www.uow.edu.au/commerce/econ/
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Related research
Keywords: locust plague; subsistence farming; optimal control;

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Find related papers by JEL classification:
O13 - Economic Development, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products
O18 - Economic Development, Technological Change, and Growth - - Economic Development - - - Regional, Urban, and Rural Analyses
O21 - Economic Development, Technological Change, and Growth - - Development Planning and Policy - - - Planning Models; Planning Policy

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  1. Cowan, Robin & Gunby, Philip, 1996. "Sprayed to Death: Path Dependence, Lock-In and Pest Control Strategies," Economic Journal, Royal Economic Society, vol. 106(436), pages 521-42, May. [Downloadable!] (restricted)
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