Pricing Carbon: Tax vs. Cap and Trade
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Cap and Trade
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Tax
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Emission Certainty
Allowed emission are set
The costs vary as market forces affect technologies and financing
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Cost Certainty
The tax is set by Congress. Since it requires a vote of Congress, rate changes are not expected to be frequent, although they are expected to respond to major shifts in the economy
Emissions reduction harder to predict since some companies will pay the tax rather than reduce emissions
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Permits for emissions
Sets a maximum level of pollution, distributing emissions permits among firms that produce emissions
Companies can obtain permits either through an initial allocation or auction, or through trading with other firms
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Tax on emissions
Imposes a tax on each unit of greenhouse gas emissions
Gives firms an incentive to reduce pollution whenever doing so would cost less than paying the tax
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Complying with the cap
Company decides how to meet emissions reduction through investments in carbon reducing activities, such as installing new equipment or buying offsets
Can purchase offset from company that has emissions below their allowable cap
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Complying with the tax
Company decides how to balance costs of taxes against installing emissions reductions
Can not trade reductions with another firm
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Indirect costs to consumer
Indirectly affects consumer as costs integrated into capital costs through long term investment, loans and other financing
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Direct costs to consumer
Can directly affects consumer as a tax tends to impact cost of goods
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More complexity
Continuing government involvement in administrating a complex system that measures current emissions against the cap, predicts emission reductions from installed new technologies or upgrades, and balances the trade of offsets from one company to another
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More transparency
Less government involvement, as tax is levied against verified emissions yearly
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Flexible
Market sets pricing
In a good economy, market will tend toward higher pricing of offsets and technologies, and vice-versa
Companies can use long term strategies to finance projects that reduce emissions
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Set
Government sets tax rate
It takes an act of Congress to change that rate
Companies set policy on a yearly basis as they asses the impact of the tax
Long term planning affected by the potential for congressional changes in future years
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Slow impact
Cap rises over time, so slower impact on business
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Fast impact
Tax hits at the same time, so faster impact on business
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Extensive global implementation experience
In the US and Europe
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Limited global implementation experience
Taxes on the supply side -- fuels -- have been very successful
Some failures, as in Australia where voters demanded an end due to increases in electricty costs
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Higher preference among Progressives
Greater assurance of carbon reductions
Revenue goes towards supports for research and development of technologies that lower green house gases
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Higher preference among Conservatives
Taxes the problem -- the externality -- rather than income
Can be revenue neutral: that is dollars are returned to the tax payer
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Potential Best Use
Large industrial plants and utilities
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Potential Best Use
Transportation, heating and cooling
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