Transition to Clean Capital, Irreversible Investment and Stranded Assets

This paper uses a Ramsey model with two types of capital to analyze the optimal transition to clean capital when polluting investment is irreversible. The cost of climate mitigation decomposes as a technical cost of using clean instead of polluting...

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Bibliographic Details
Main Authors: Rozenberg, Julie, Vogt-Schilb, Adrien, Hallegatte, Stephane
Format: Policy Research Working Paper
Language:English
en_US
Published: World Bank, Washington, DC 2014
Subjects:
CO
CO2
GHG
NOX
TAX
Online Access:http://documents.worldbank.org/curated/en/2014/05/19457792/transition-clean-capital-irreversible-investment-stranded-assets
http://hdl.handle.net/10986/18343
Description
Summary:This paper uses a Ramsey model with two types of capital to analyze the optimal transition to clean capital when polluting investment is irreversible. The cost of climate mitigation decomposes as a technical cost of using clean instead of polluting capital and a transition cost from the irreversibility of pre-existing polluting capital. With a carbon price, the transition cost can be limited by underutilizing polluting capital, at the expense of a loss in the value of polluting assets (stranded assets) and a drop in income. In contrast, policy instruments that focus on redirecting investments -- such as feebates or environmental standards -- prevent underutilization of existing capital, avoid stranded assets, and reduce short-term losses; but they reduce emissions more slowly and increase the intertemporal cost of the transition. The paper investigates inter- and intra-generational distributional impacts and the political acceptability of climate change mitigation policy instruments.