Dormady and his colleagues used two of the most devastating U.S. natural disasters to demonstrate the metrics they developed for the cost-effectiveness of economic resilience tactics. They surveyed firms affected by Superstorm Sandy, which made landfall in New Jersey in 2012, and Hurricane Harvey, which hit Texas in 2017. Analyzing the responses from firms that used resilience tactics, they identified the firms’ actual losses and estimated what their sales revenue would have been had they not used resilience tactics. They then calculated the costs of resilience tactics that the firms implemented and the resulting losses that were avoided.
The survey clearly illustrated how business interruption losses exceed property damage losses among firms. Among the survey results, property damage was $69 million and $52 million for the Sandy and Harvey samples, respectively. Total sample business interruption loss was $111 million and over $1 billion for Sandy and Harvey, respectively.
Significantly, the researchers found that in all, the firms’ resilience expenditures, totaling $18.5 million, resulted in preventing $84.4 million in losses.
A variety of factors, including labor and infrastructure disruptions, influenced just how effective and cost-effective each class of tactic was. Some firms used tactics that avoided no losses, while other tactics avoided as much as 74% of maximum potential losses.
“After a disaster strikes, a lot of small and mid-sized businesses spin their proverbial wheels on actions that they think will help them stave off losses, and they may end up wasting a lot of money, time and resources,” said Blain Morin, an Ohio State public policy and management doctoral candidate and one of the study’s co-authors. “What individual businesses, government and insurers need is resilience actions that are based on actual data-driven analyses — absent from today’s most prominent resilience planning platforms.”
“Federal and state agencies are always searching for a more effective way to help small and mid-sized businesses in disasters.” said Dormady. “Our paper provides some evidence that there is not a simple one-size-fits-all public sector response that supports all businesses. Rather, businesses can make well-informed, data-driven responses that take into consideration the specific input characteristics, infrastructure and supply-chain disruptions that most directly impact them.”
Dormady conducted the research with Morin; Adam Rose, a professor at the Price School of Public Policy at the University of Southern California; and Alfredo Rao-Henriquez, a Glenn College PhD alumnus who is now an assistant professor at the College of Business at North Dakota State University.
This research received funding support from the Critical Infrastructure Resilience Institute at the University of Illinois, Urbana-Champaign, and the U.S. Department of Homeland Security Office of Science and Technology.