Economic Perspective(s) on Environmental Degredation

(1) Normative Claim
(2) Descriptive Claim
(3) Attitudinal Claim

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Hardin (sp?)
(1) Tragedy of Commons. discussion re: field hypo. can also characterize as externality.
(2) Prisoners' Dilemma
(3) Logic of Collective Action.
(4) Public Goods
(5) Externalities