How the Failure to Account for Flexibility in the Economic Analysis of Flood Risk and Coastal Management Strategies Can Result in Maladaptive Decisions
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 138, Issue 5
Abstract
This paper uses two alternative economic analysis approaches, net present value (NPV) and real in options (RIO), to show how the failure to incorporate uncertainty and flexibility in the economic analysis of flood risk and coastal management strategies can result in maladaptive decisions. RIO offers a major development on the conventional NPV approach, because it integrates expected changes in future levels of uncertainty into economic analysis. This study applies RIO analysis to the semihypothetical case study of a coastal defense system to demonstrate its applicability for decision making on climate change adaptation. In the case study, two different adaptive strategies are analyzed, consisting of a hard and soft structural alternative. Soft strategies are often inherently more flexible than hard strategies. The results of the case study show that the NPV approach increases the relative cost of soft strategies for the two alternatives compared with hard strategies, because it does not account for the value of flexibility built into adaptive strategies. It is therefore recommended that RIO analysis be used for the choice between hard and soft strategies to avoid maladaptation. This is particularly significant in cases where there is both high climate uncertainty and high decision uncertainty concerning the best strategy.
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References
Barnett, J., and O’Neill, S. (2010). “Maladaptation.” Glob. Environ. Change, 20(2), 211–213.
Black, F., and Scholes, M. (1973). “The pricing of options and corporate liabilities.” J. Polit. Econ., 81(3), 637–654.
Cox, J. C., Ross, S. A., and Rubinstein, M. (1979). “Option pricing: A simplified approach.” J. Financ. Econ., 7(3), 229–263.
De Bruin, K., and Ansink, E. (2011). “Investment in flood protection measures under climate change uncertainty.” 〈http://www.webmeets.com/files/papers/EAERE/2011/299/Investment%20in%20flood%20protection%20measures%20under%20climate%20change%20uncertainty.pdf〉 (Jun. 28, 2012).
de Neufville, R. (2003). “Real options: Dealing with uncertainty in systems planning and design.” Integrated Assess., 4(1), 26–34.
de Neufville, R. (2004). “Uncertainty management for engineering systems planning and design.” 〈http://strategic.mit.edu/docs/uncertainty.pdf〉 (Jun. 28, 2012).
Department for Environment, Food and Rural Affairs. (2006). Flood and coastal defence appraisal guidance FCDPAG3 economic appraisal. Supplementary note to operating authorities—climate change impacts, DEFRA, London.
Environment Agency. (2008). “Response to the royal commission on environmental pollution study: Adapting the UK to climate change.” 〈http://www.environmentagency.gov.uk/research/library/consultations/94894.aspx〉 (Jun. 28, 2012).
European Commission. (2009). “Commission staff working document accompanying the white paper: Adapting to climate change: Towards a European framework for action: Impact assessment.” 〈http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri-SEC:2009:0387:FIN:EN:PDF〉 (Jun. 28, 2012).
Financiën. (2009). “Advies werkgroep lange termijn discontovoet.” 〈https://zoek.officielebekendmakingen.nl/blg-31106.pdf〉 (Jun. 28, 2012).
Gersonius, B., Ashley, R., Pathirana, A., and Zevenbergen, C. (2010). “Managing the flooding system's resiliency to climate change.” Proc. ICE-Eng. Sustain., 163(1), 1–2.
Her Majesty’s Treasury. (2003). The green book: Appraisal and evaluation in central government, HM Treasury, London.
Her Majesty’s Treasury and Department for Environment, Food and Rural Affairs (DEFRA). (2009). Accounting for the effects of climate change: Supplementary green book guidance. HM Treasury, London.
Ingham, A., Ma, J., and Ulph, A. (2006). Theory and practice of economic analysis of adaptation. Tyndall Centre for Climate Change Research, Univ. of East Anglia, Norwich, UK.
Jarrow, R., and Rudd, A. (1982). “Approximate option valuation for arbitrary stochastic processes.” J. Financ. Econ., 10(3), 347–369.
Kundzewicz, Z., et al. (2008). “The implications of projected climate change for freshwater resources and their management.” J. Sciences Hydrologiques, 53(1), 3–10.
Ministry for the Environment. (2010). Preparing for future flooding: A guide for local government in New Zealand, Ministry for the Environment, Wellington, New Zealand.
Morselt, T. T. (2009). “Economische en milieukundige effecten van de zandwinstrategie.” Rapport Blueconomy, 09014, Rijkswaterstaat Directie Noordzee, Zaltbommel, Netherlands.
Myers, S. (1984). “Finance theory and financial strategy.” Interfaces, 14(1), 126–137.
Technische Adviescommissie voor de Waterkeringen (TAW). (2002). Technisch rapport golfoploop en golfoverslag bij dijken, NIVO, Delft, Netherlands.
van den Hurk, B. (2007). “New climate change scenarios for the Netherlands.” Water Sci. Tech., 56(4), 27–33.
Van Koningsveld, M. (2004). “Planstudie veiligheid voor de Provincie NoordHolland. De zwakke schakels: de kop van NoordHolland, de Hondsbossche en pettemer zeewering.” Rapport in opdracht van de Provincie NoordHolland. WL Rapport Z3725.50, Provincie Noord-Holland, Haarlem, Netherlands.
Vreugdenhil, B. J., van Noortwijk, J. M., and de Gooijer, C. (2000). Hydra-K: Functioneel ontwerp, Rijkswaterstaat RIKZ, Lelystad, Netherlands.
Wang, T., and de Neufville, R. (2004). “Building real options into physical systems with stochastic mixed-integer programming.” Proc., 8th Annual Real Options Int. Conf., Massachusetts Institute of Technology, Cambridge, MA.
Wiener, N. (1923). “Differential space.” J. Math. Phys., 2, 131–174.
Woodward, M., Gouldby, B., Kapelan, Z., Khu, S.-T., and Townend, I. (2011). “Real options in flood risk management decision making.” J. Flood Risk Manag., 4(4), 339–349.
Zhao, T., and Tseng, C. (2003). “Valuing flexibility in infrastructure expansion.” J. Infrastruct. Syst., 9, 89–97.
Zhao, T., Sundararajan, S., and Tseng, C. (2004). “Highway development decision-making under uncertainty: A real options approach.” J. Infrastruct. Syst., 10, 23–32.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 138 • Issue 5 • September 2012
Pages: 386 - 393
Copyright
© 2012 American Society of Civil Engineers.
History
Received: May 19, 2011
Accepted: Nov 28, 2011
Published online: Dec 1, 2011
Published in print: Sep 1, 2012
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