Should We Give Up After Solyndra? Optimal Technology R&D Portfolios under Uncertainty

Mort D. Webster, Karen Fisher-Vanden, David Popp and Nidhi R. Santen

No 5448, CESifo Working Paper Series from CESifo

Abstract: Global climate change and other environmental challenges require the development of new energy technologies with lower emissions. In the near-term, R&D investments, either by government or the private sector, can bring down the costs of these lower emission technologies. However, the results of R&D are uncertain, and there are many potential technologies that may turn out to play an effective role in the future energy mix. In this paper, we address the problem of allocating R&D across technologies under uncertainty. Specifically, given two technologies, one with lower costs at present, but the other with greater uncertainty in the returns to R&D, how should one allocate the R&D budget? We develop a multi-stage stochastic dynamic programming version of an integrated assessment model of climate and economy that represents endogenous technological change through R&D decisions for two substitutable non-carbon backstop technologies. Using the model, we demonstrate that near-term R&D into the higher cost technology is justified, and that the amount of R&D into the high cost technology increases with both the variance in the uncertainty in returns to R&D and with the skewness of the uncertainty. We also present an illustrative case study of wind and solar photovoltaic technologies, and show that poor R&D results in early periods do not necessarily mean that investment should not continue.

Keywords: innovation; climate change; solar energy; wind energy (search for similar items in EconPapers)
JEL-codes: O38 Q42 Q48 Q55 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Related works:
Journal Article: Should We Give Up after Solyndra? Optimal Technology R&D Portfolios under Uncertainty (2017)
Working Paper: Should We Give Up After Solyndra? Optimal Technology R&D Portfolios under Uncertainty (2015)
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Persistent link: https://EconPapers.repec.org/RePEc:ces:ceswps:_5448

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