Motivated by the structure of existing pollution permit markets, we study the equilibrium path that results from allocating an initial stock of storable permits to a large polluting agent and a competitive fringe. A large agent selling permits in the market exercises market power no differently than a large supplier of an exhaustible resource. However, whenever the large agent’s endowment falls short of its efficient endowment –allocation profile that would exactly cover its emissions along the perfectly competitive path– the market power problem disappears, much like in a durable-good monopoly. We illustrate our theory with two applications: the carbon market that may eventually develop under the Kyoto Protocol and beyond and the US sulfur market.
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Paper provided by Instituto de Economía. Pontificia Universidad Católica de Chile. in its series Documentos de Trabajo with number
329.
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