This dissertation examines three themes of efficiency in fisheries economics and management.The first theme is intertemporal efficiency; by examining fishery managementproblems within a stochastic bioeconomic model, the tradeoffs between current and futureconsumption are clear. The second theme explored in this essay is the efficiency of tradablepermits system in the presence of trade restrictions. The third theme explored in thisdissertation is efficiency in the presence of ecosystem externalities.Fisheries managers must often make decisions even while there is large amounts ofuncertainty regarding stock level; furthermore, there are often fairly long periods of timein which they are unable to assess stock levels. The first essay examines a bioeconomicfishery model that includes rigidity in the policy-setting process, a management reality thathas yet to be incorporated into these types of models. Although analytically intractable, themodel is simulated across a range of biological and institutional parameters to learn howthis rigidity affects the manager’s optimization problem. While the effects of rigidity withdeterministic stock growth are shown to be small; when growth is stochastic, the presentvalue of fisheries revenue may drastically decline under rigid management. By solvingfor the present value of fisheries revenues across a wide range of parameter values, theeconomic tradeoffs between management and scientific activities can be clarified.The second essay examines bilateral bargaining in a market for a unique synthetic inputpermits, Days-at-Sea, in the Northeast groundfish fishery. This research applies a quantileregression approach to the estimation of bargaining power and tests a key identificationassumption of bargaining power equality made by previous researchers. One of the findings of this research is that current regulations may have segmented this market, endowing somefirms with bargaining power relative to others.The final essay examines a small ecosystem-economy in which there are competingextractive and non-extractive uses for the fishery resource. In this ecosystem, herring arecommerically harvested and are food for whales, which are an input in a non-extractivetourism industry, whale-watching. A finding of this research is that fishing negatively impactsthe whale-watching industry; however, the magnitude of these effects are small. Theresults contained in this essay are useful inputs for managers seeking to implement EcosystemBased Fishery Management.