xid-10831958_2 - Tues, Dec 6 1. F isheries and overfishing:...

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Tues, Dec 6 1 . F isheries and overfishing: Fisheries are common property resources: they are rival (once the fish are caught by one vessel, they aren’t available for other vessels to catch) and non-excludable (it is very difficult and costly to effectively prevent vessels from using the fishery, so just about anyone can use it). Rival - use of resource by one person reduces availability for others. Non-excludable - very costly to exclude users of the resource, so there are few (if any) restrictions to entry. Other examples of common property - oil deposits; pastures, and, under certain conditions, air and water sheds. Common areas are open and available to all (14th century England - areas for grazing sheep and cows). The problem: - there’s very little incentive for individual farmers to avoid overgrazing - so common areas were, and are, overgrazed (or overused), and eventually support fewer animals. Overfishing - example of common property problem: Results in overuse of the resource. 2. What is efficient level of fishing in a common property fishery? Fisheries growth - biological model - Logistic growth function
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This note was uploaded on 04/05/2012 for the course ECP 3302 taught by Professor Staff during the Fall '11 term at Florida State College.

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xid-10831958_2 - Tues, Dec 6 1. F isheries and overfishing:...

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