Suchergebnisse

"Public policies for pollution control, including climate change policies, sometimes allow polluters in one sector subject to an emissions cap to offset excessive emissions in that sector with pollution abatement in another sector. The government may often find it more costly to verify offset claims than to verify compliance with emissions caps. Concerns about such difficulties in enforcement may lead regulators to restrict the use of offsets. In this paper, we demonstrate that allowing offsets may increase pollution abatement and reduce illegal pollution, even if the government has a fixed enforcement budget. We explore the circumstances that may make allowing pollution offsets an attractive option when enforcement is costly"--National Bureau of Economic Research web site

"This chapter applies recent research on environmental enforcement to a potential U.S. program to control greenhouse gases, especially through emission trading. Climate policies present the novel problem of integrating emissions reductions that are relatively easy to monitor (such as carbon dioxide emissions from fossil fuels) with those that may be very difficult to monitor (such as some emissions of other greenhouse gases). The paper documents the heterogeneity in monitoring costs across different parts of current carbon markets. It argues that a broad emission trading system that includes more difficult-to-enforce components can provide less incentive to violate the law than a narrower program; thus, the government may not find it more costly to assure compliance with a broader program"--National Bureau of Economic Research web site

Many arguments about decentralization in public goods provision have testable implications for the relationship between decentralization and the level and spatial variability of public goods. This paper explores the empirical relationship between decentralization and environmental public good, water quality in rivers at monitoring stations around the world. It examines pollution levels and spatial variability of pollution within a country for both a local and a regional pollutant. The results suggest higher pollution levels with greater decentralization when fixed effects are included; the evidence is strongest for the regional pollutant, where it might result from interjurisdictional free riding. Federalism is associated with greater spatial variability in pollution within a country, consistent with the traditional view that decentralization allows policies more tailored to local conditions.

This chapter applies recent research on environmental enforcement to a potential U.S. program to control greenhouse gases, especially through emission trading. Climate policies present the novel problem of integrating emissions reductions that are relatively easy to monitor (such as carbon dioxide emissions from fossil fuels) with those that may be very difficult to monitor (such as some emissions of other greenhouse gases). The paper documents the heterogeneity in monitoring costs across different parts of current carbon markets. It argues that a broad emission trading system that includes more difficult-to-enforce components can provide less incentive to violate the law than a narrower program; thus, the government may not find it more costly to assure compliance with a broader program.

Most US federal environmental policies allow states to assume responsibility for implementation and enforcement of regulations; states with this responsibility are referred to as "authorized" or having "primacy." Although such decentralization may have benefits, it may also have costs with pollution spillovers across states. This paper estimates these costs empirically by studying the free riding of states authorized under the Clean Water Act. The analysis examines water quality in rivers around the US and includes fixed effects for the location where water quality is monitored to address unobserved geographic heterogeneity. The estimated equations show a 4% degradation of water quality downstream of authorized states, with an environmental cost downstream of $17 million annually.