On efficiency grounds, the economics community has to date tended to emphasize price-based policies to address climate change -- such as taxes or a “safety-valve” price ceiling for cap-and-trade -— while environmental advocates have sought a more clear quantitative limit on emissions. This paper presents a simple modification to the idea of a safety valve -- a quantitative limit that we call the allowance reserve. Importantly, this idea may bridge the gap between competing interests and potentially improve efficiency relative to tax or other price-based policies. The last point highlights the deficiencies in several previous studies of price and quantity controls for climate change that do not adequately capture the dynamic opportunities within a cap-and-trade system for allowance banking, borrowing, and intertemporal arbitrage in response to unfolding information.
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Paper provided by Resources For the Future in its series Discussion Papers with number
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Joseph E. Aldy & Alan J. Krupnick & Richard G. Newell & Ian W.H. Parry & William A. Pizer, 2009.
"Designing Climate Mitigation Policy,"
NBER Working Papers
15022, National Bureau of Economic Research, Inc.
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