Summary: | 碩士 === 國立政治大學 === 財政研究所 === 98 === There has been a growing concern about the impact of economic development on the global environment which has deeply influenced by the uncontrolled pollution emissions. In order to reduce pollution emissions, governments have incentives to use environmental policies to encourage the private R&D spending which targets on reducing pollutions. Therefore, in this paper we develop a three-country model to examine the relationship between environmental policy and the level of the private R&D. And we also investigate the effects of the private R&D investments in the environmental agreements between countries. A principal finding is that when governments levy tax on pollution emissions, it turns out that firms may or may not increase its level of the R&D spending. In addition, in setting the R&D spending as the exogenous variable, ceteris paribus, the non-cooperative emission-tax will decrease when the R&D spending increases. However, on the contrary, the increased R&D spending will lead to the increasing of the cooperative emission-tax.
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