Economics Assessment of Cyclone Early Warning System – A Case Study for Cyclone Evan in Samoa

Samoan Islands are prone to cyclone hazards that will likely increase in coming decades, affecting coastal communities and infrastructure around the islands. The cost-benefit analysis (CBA) is an indicator that attempts to summarize the overall value for money in terms of investment to enhance a system. This paper aims to quantify the benefits in the adoption of early warning systems against the investment required for establishing and operating a suitable early warning system. Data from the ‘Samoa Post-Disaster Needs Assessment of the cyclone Evan event on 2012’ were used to assess the damage information and field consultations and interviews to conduct CBA. We quantify the CBA of early warning services for cyclone hazards. The results showed that for every USD 1 invested, there is a return of USD 4.35 as of benefits. Economical assessment of early warning services could help quantify pre-impact assessment to demonstrate the economic benefit of disaster risk reduction (DRR) to policy makers.

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