Optimal economic growth with a random environmental shock

Aseev, S.M., Besov, K.O., Ollus, S.-E., & Palokangas, T. (2010). Optimal economic growth with a random environmental shock. In: Dynamic Systems, Economic Growth, and the Environment. Eds. Cuaresma, J. Crespo, Palokangas, T., & Tarasyev, A., Heidelberg: Springer-Verlag. ISBN 978-3-642-02131-2 10.1007/978-3-642-02132-9_6.

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The government in a small open economy uses both an old 'dirty," or "polluting," technology and a new "clean" technology simultaneously. However, because of climate change, it should take into account that at some stage in the future it will be penalized for production based on the old technology. In this paper, pollution is alleviated through international agreements that restrict polluting activities. The government's incentives to invest in cleaner technologies are based on productivity of the technology and randomly increasing abatement costs for pollution in future. In contrast to the Schumpeterian model of creative destruction, both technologies can be used simultaneously. The technologies are subject to AK production functions. Assuming that the exogenous environmental shock follows a Poisson process, we use Pontryagin's maximum principle to find the optimal investment policy. We find conditions under which a rational government should invest all its resources in one technology, while the other is moderately run down, as well as conditions under which it should divide the investments between the technologies in a certain ratio.

Item Type: Book Section
Research Programs: Dynamic Systems (DYN)
Bibliographic Reference: In: J. Crespo Cuaresma, T. Palokangas, A. Tarasyev (eds); Dynamic Systems, Economic Growth, and the Environment; Springer-Verlag, Heidelberg, Germany pp.109-137 (2010)
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Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:44
Last Modified: 27 Aug 2021 17:38
URI: https://pure.iiasa.ac.at/9351

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