L3_Commons_Notes - Tragedy of the Commons WG Gartner People...

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1 Tragedy of the Commons WG Gartner People and Resources (Geog 139) Fall 2007 Tragedy of the Commons (After Hardin 1968) The Commons - A Finite Public Resource – Free Access – Unrestricted Demand – Unregulated Tragedy – “change of fortune” – “remorseless working of things” Structural Socioeconomic Trap – individual benefits public good – fallacy of the “invisible hand” – can not maximize 2 or more variable at the same time. Example: Pasture Tragedy of the Commons Shared Pasture One Cow = 10 liters of milk Carrying Capacity = 8 cows. Diminishing Returns = 1 liter/cow/CC Total Production = 50 Liters
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2 Tragedy of the Commons Shared Pasture Innovator 10 Liters 10 Liters 10 Liters 10 Liters 20 Liters Total Production = 60 Liters Tragedy of the Commons Shared Pasture 16 Liters 16 Liters 16 Liters 16 Liters 16 Liters Total Production = 80 Liters Carrying Capacity = 8 cows. Diminishing Returns = 1 liter/cow/CC Tragedy of the Commons Shared Pasture 20 40 60 80 Milk Production 51 0 1 5 Number of Cows
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L3_Commons_Notes - Tragedy of the Commons WG Gartner People...

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