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Was sollen wir tun? Was dürfen wir glauben? - bei DuEPublico ...

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The Role of Economic Analysis in Combating<br />

Climate Change<br />

Joachim Wündisch<br />

This paper is concerned with the appropriate role of economic analysis in the context of the<br />

climate change debate. It seeks to offer a careful evaluation of the economists’ tools and the<br />

underlying philosophy of economics in order to build a limited defense of economic analysis<br />

against common criticisms voiced by philosophers.<br />

1. Introduction<br />

Anthropogenic climate change is one of humanity’s most important and urgent challenges. If<br />

we fail to intervene with conviction, anthropogenic climate change will radically reshape our<br />

biosphere wreaking havoc on human and animal welfare. While lagged effects make reversing<br />

or even halting climate change unattainable for now, there are feasible strategies to slow<br />

climate change and to avert catastrophe. The most salient but also one of the most costly of<br />

these strategies is a significant reduction of global CO 2 emissions.<br />

Neither the reality of climate change nor its effects are disputed by credible sources. However,<br />

the question of how to evaluate the effects of climate change as well as the question of how<br />

and to what extent to reduce CO 2 emissions is the subject of serious debate. Due to the<br />

success of economists in influencing policy debates, the tools of their trade are ever present in<br />

discussions of public policy. Their critics, though, claim that the contributions economists can<br />

make to public policy debates are vastly overrated. Specifically, some claim that underlying<br />

philosophical perspectives need to be more carefully considered when making public policy<br />

decisions in general and decisions about combating climate change in particular.<br />

This paper is concerned with the appropriate role of economic analysis in the context of the<br />

climate change debate. It seeks to offer a careful evaluation of the economists’ tools and the<br />

underlying philosophy of economics in order to build a limited defense of economic analysis<br />

against common criticisms voiced by philosophers. Toward this end section two introduces a<br />

particularly pointed statement of these criticisms and summarizes them. Sections three, four,<br />

and five defend economic analyses against these criticisms before section six concludes.<br />

2. Management Approaches to Climate Change<br />

In his article “Ethics, Public Policy, and Global Warming” the influential environmental<br />

ethicist Dale Jamieson delivers a scathing critique of what he calls management approaches.<br />

These management approaches are said to be based on<br />

[m]anagement techniques mainly […] drawn from neoclassical economic theory and<br />

[…] directed toward manipulating behavior by controlling economic incentives through<br />

taxes, regulations, and subsidies. (Jamieson 1992: 142)<br />

Examples of these management approaches within the climate change debate are taxes on<br />

CO 2 emissions, outright bans on particularly wasteful technologies such as the incandescent

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