Pollution Rights
________________________________________________________________________________________________________________________________________________ One approach to resolving problems of pollution is to assign
marketable pollution rights that permit holders to discharge waste products
into the environment. Pollution rights are licenses to discharge given amounts of waste products. In some cases, the government might simply sell pollution rights,
or auction pollution rights to the highest bidders. Another possibility,
known as “cap-and-trade”,
involves setting a maximum on pollution (a cap), with
tradable rights being assigned to established polluters. Lawsuits are another way to rely
entirely on market forces to deal with pollution. Ronald
Coase, was awarded the Nobel Prize for, among other things, showing that an equilibrium
pollution level is optimal, and this equilibrium is unaffected by whether
pollution rights are assigned to the polluter or the harmed party as long as
those affected (a) are easily
identified, (b) have roughly the
same bargaining power, and (c) can
bargain without cost. In this view, the environment is just another productive
resource. [figure 6, ch.
19] This
bargaining process is reflected in the figure above. The demand for pollution rights, D0 slopes downward. Pollution is Q0 if the environment can be used freely as a
garbage dump. Quotas might be auctioned if the community decided to allow
only Qe
pollution. Business demands to pollute reflect how the production of
pollution contributes to a firm’s revenues and
profits. A firm willing to pay only Pa
for each right to pollute (point a)
undoubtedly can curtail pollution for Pa
or less per unit of effluent. Businesses would be willing to pay Pe each for Qe pollution
rights. If purity lovers would be hurt more than Pe by each unit of pollution,
they could buy and retain the pollution rights. In this way, the initial sale
of these rights would generate revenue for the community. If an auction were held and Qe rights were sold, then
excessive pollution (Q0 – Qe) would be eliminated. What
if other firms wanted to set up locally after the Qe pollution rights had already
been sold? They could buy rights from the owners of existing pollution
rights. This might require buying an acutely dirty plant, shutting it down,
and transferring its pollution rights to a new plant. Alternatively, a new
firm could pay existing firms to install more antipollution equipment. Both
techniques shift the demand for the right to contaminate from D0 to D1 in the figure. The value of pollution rights
rises, but not the level of waste. Consumers of goods entailing pollution pay
full production costs as higher costs of polluting are shifted forward. This
approach has several advantages. First, polluters have incentives to clean
up. Little administration other than monitoring is required. And if the
government decides later to reduce pollution, it can repurchase existing rights—or if it becomes more accepting of pollution, it
may sell even more rights as a revenue source. This approach can confer
significant cost advantages to firms that implement relatively clean
technologies. It may be a cheap and attractive alternative to direct
regulation, and it works reasonably well in a relatively enclosed
environment, like a lake under the control of local authorities. But
administration is more difficult when spillovers are more extensive. Another
flaw is that some voters and politicians equate pollution with sin and are
outraged at the idea of allowing economic reasoning to dominate what is for
them a moral issue. Even these moralists, however, would probably agree that
selling pollution rights is better than giving them away for free. In
order to comply with the Kyoto Protocol's stipulations that |
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________________________________________________________________________________________________________________________________________________ Author: Ralph Byrns |
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Economics
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