Endogenising emission taxes - A general equilibrium type optimisation model applied for Turkey
Arıkan, Yıldız and Kumbaroğlu, Gürkan (2001) Endogenising emission taxes - A general equilibrium type optimisation model applied for Turkey. Energy Policy, 29 (12). pp. 1045-1056. ISSN 0301-4215
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Official URL: http://dx.doi.org/10.1016/S0301-4215(01)00032-5
This paper presents a modelling attempt to endogenise the level and timing of environmental taxes within an optimisation framework. First, a base model of energy economy environmental interactions is extended to allow for exogenous tax analysis. Two types of environmental taxes, one on the sulphur content of fuels and the other on the level of emissions, are exogenously included in the model as alternative instruments to mitigate pollution. Next, the base model is modified to endogenise pollution abatement. This has been achieved by incorporating a preference rate, depending on an index of emissions, into the utility function. Finally, the emission index and emission tax are taken as substitutes and modelled within a CES form to endogenise the emission tax. Results for all cases, obtained with Turkish data, are discussed. It is found that a tax on SO2 emissions is more effective in reducing SO2 emissions than a tax applied on the sulphur content of fuels. It is also found that a gradually increasing tax is more effective in reducing emissions than a constant tax.
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