Pollution control and the dynamics of the firm: The effects of market-based instruments on optimal firm investments

Pollution control and the dynamics of the firm: The effects of market-based instruments on optimal firm investments

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Article ID: iaor19971922
Country: United Kingdom
Volume: 17
Issue: 4
Start Page Number: 267
End Page Number: 279
Publication Date: Oct 1996
Journal: Optimal Control Applications & Methods
Authors:
Keywords: investment, control processes
Abstract:

This contribution belongs to a category of papers that attempts to determine the effects of environmental regulation on the growth of an individual firm. It extends the existing literature in at least two ways. First, pollution function explicitly deals with the fact that it is more difficult to reduce pollution by abatement activities when pollution is arleady low. Second, according to the knowledge of the authors it is for the first time that marketable pollution permits are incorporated in a dynamic model of the firm. In the paper the authors establish the effects of a pollution tax and marketable permits on the behaviour of the firm. For the tax model as well as the marketable permits model they prove that the steady state is stable and approached monotonically and they derive formulae for optimal investment policies. Owing to non-zero cross-effects in the pollution function, comparative statics analysis shows that an increase in the pollution tax rate or an increase in the permit price does not necessarily lead to a decrease in pollution. Furthermore, a condition is obtained under which long-run firm behaviour is the same when either a tax or marketable permits are imposed.

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