For political and practical reasons, environmental regulations sometimes treat point source polluters, such as power plants, differently from mobile source polluters, such as vehicles. This paper measures the extent of this regulatory asymmetry in the case of nitrogen oxides (NOx), the criteria air pollutant that has proven to be the most recalcitrant in the United States. We find significant differences in marginal abatement costs across source types with the marginal cost of reducing NOx from cars less than half of the marginal cost of reducing NOx from power plants. Our findings have important implications for the efficiency of NOx emissions reductions and, more broadly, the benefits from increasing the sectoral scope of environmental regulation. We estimate that the costs of achieving the desired emissions reductions could have been reduced by nearly $2 billion, or 9 percent of program costs, had marginal abatement costs been equated across source types.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
14504.
Length: Date of creation: Nov 2008 Date of revision: Handle: RePEc:nbr:nberwo:14504
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Find related papers by JEL classification: Q52 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Pollution Control Costs; Distributional Effects; Employment Effects Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy
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