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HMSC Research Seminar- Hold the Line: Modeling private coastal adaptation through shoreline armoring decisions

Speaker: Steven Dundas, Assistant Professor, Department of Applied Economics, COMES, OSU

Topic: Hold the Line:  Modeling private coastal adaptation through shoreline armoring decisions

A primary conduit for coastal adaptation to climate change on private land is the hardening, or armoring, of the shoreline for protection against the effects of erosion and sea-level rise (SLR). When such decisions are made at the parcel-level, there is potential for spatial spillovers, including externalities due to deflected wave action and peer effects. We provide empirical evidence from a correlated random effects model using a panel of parcel-level data from 1990 - 2015 in Oregon that suggests the impacts of spatial spillovers are highly influential determinants of the armoring decision. Our simulation results show that economic models excluding spatial spillovers may under-predict future armoring by 66 percent. From scenario-based simulations, we find a 5.2 percent increase in armoring due to SLR within four decades. We then demonstrate the primacy of policy, as a combination of SLR and removing the current policy that limits armoring has potential to significantly increase future armoring by 70 percent.


Thursday, October 17, 2019 at 3:30pm to 4:30pm

Hatfield Marine Science Center, Guin Library Seminar Room
2030 SE Marine Science Dr, Newport, OR 97365

Event Type

Lecture or Presentation

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Community Members, Faculty and Staff, Student





Hatfield Marine Science Center
Contact Name

Cinamon Moffett

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