RT Journal Article SR Electronic T1 Competition or Cooperation? Peer Effects in the Pacific Coast Groundfish Fishery JF Land Economics JO Land Econ FD University of Wisconsin Press SP 258 OP 278 DO 10.3368/le.95.2.258 VO 95 IS 2 A1 Haskell, Nancy A1 Mamula, Aaron A1 Collier, Trevor C. YR 2019 UL http://le.uwpress.org/content/95/2/258.abstract AB We analyze longitudinal data on vessel activity in the Pacific Coast groundfish fishery from 2011 to 2014, employing a spatial Durbin model with fixed effects. Different definitions of peers using port and risk pool membership allow identification of competition and cooperation under various groupings. Positive spillovers are strongest among vessels with a shared primary port. Competition also exists, as greater fishing intensity by peers negatively impacts average revenue. We find smaller positive spillovers than previous literature on lobster and crab fisheries, which have more sedentary spatiotemporal patterns. Thus, cooperatives within a single port or close neighboring ports may better serve groundfish fisheries. (JEL Q22)