Measuring Productivity Change and Its Components for Fisheries: The Case of the Alaskan Pollock Fishery, 1994-2003

Traditional productivity measures have been much less prevalent than other measures of economic and biological performance in fisheries economics. It has been increasingly recognized, however, that mod eling and measuring fisheries’ production relationships is central to understanding and ultimately correcting the repercussions of externalities and poorly designed regulations. We use a transformation function production model to estimate productivity and its components for the Bering Sea and Aleutian Islands pollock fishery. We recognize the roles of externalities from pollock harvesting by incorporating data on environmental conditions, bycatch, and biomass stock, and captu re regulatory impacts through fishing strategy indicators and fixed effects. We find that the productive contributions and interactions of environmental conditions, bycatch, and fishing strategies are statistically significant, and that regulatory changes have had both direct and indirect impacts on catch patterns.