Free-Range Farming and the Optimal Public and Private Responses to a Possible Epidemic
Southern Illinois University Carbondale - Department of Economics
Southern Illinois University at Carbondale - Department of Economics
February 17, 2009
We develop an optimizing model of a farm that is subject to invasion by an infectious disease such as bird flu, where the probability of invasion depends on the degree of free-ranging on the farm and post-invasion rate of spread on the farm depends on the farm size, the farmer's surveillance efforts, and the degree of free-ranging. We examine optimal policies for the farm and for the government, and analyze how these policies are affected by the degree of free-ranging. We find, inter alia, that when the farm size is endogenous fining an infected farm is superior as an instrument than providing it a rebate on costs, but when the farm size is exogenous the two instruments are equivalent. We also find that optimal surveillance effort, farm size, and fines are smaller for free-range farms when costs are sensitive to the degree of free-ranging.
Number of Pages in PDF File: 21
Keywords: Avian Influenza, H5N1, Foot-and-Mouth Disease, Aphtae epizooticae, Mad Cow Disease, BSE,Invasive Species, Organic Farming
JEL Classification: Q12, Q18, I18, H32working papers series
Date posted: February 22, 2009
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