In commercial fisheries, stock collapse is an intrinsic problem caused by overexploitation or due to pure stochasticity. To analyze the risk of stock collapse, we apply a relatively simple Monte Carlo approach which can capture complex stock dynamics. We use an economic model with downward...

I set forth a generalized stochastic time trend approach, based upon the Kalman filter, as an alternative to the general index approach to measure technological change. Technology is treated as a latent variable in a state-space model of the production function. In data sparse settings, where...

The multispecies fisheries management looks at a bigger picture in addressing the long-term consequences of present decisions. This implies an ecosystem management that includes a number of species and their physical, biological and economic interactions. These interactions make the growth of...

This study presents a multispecies stochastic model. The model suggests optimal fishing policy for two species in a three species predator prey ecosystem in the Barents Sea. We have employed stochastic dynamic programing to solve a three dimensional model, where catch is optimized by a...

La camaronicultura es un sector productivo en aumento con un gran potencial, especialmente en la costa del Pacifico de Nicaragua. Actualmente se discute sobre sus posibles impactos ambientales. Este articulo trata, de identificar y caracterizar los principales impactos ambientales de su proceso...

In this study, we investigate whether the trade in fish and fish prod- ucts contributed to the decline of 57 fish species observed from 1996 to 2009 in Turkey. Our aim is to test the theoretical prediction that trade liberalization in the presence of open access resources can lead to a re-...

Efficiency analysis in fisheries is not uncommon. In the past, efficiency analysis has mainly focused on productivity, cost and revenue, with relatively few investigating profit efficiency. Negative profits and small sample sizes in fisheries have been some of the obstacles diverting attention...

Efficiency analysis in fisheries is not uncommon. In the past, efficiency analysis has mainly focused on productivity, cost and revenue, with relatively few investigating profit efficiency. Negative profits and small sample sizes in fisheries have been some of the obstacles diverting attention...

The presence of illegal, unregulated and unreported (IUU) fishing activities is considered a serious barrier to the sustainable use of marine resources. This paper uses a game theoretic approach to investigate the strategic interaction between fishers and management in the presence of IUU...

We investigate the effects of incorporating a fixed input on equilibrium profits and biomass. We first set up a theoretical model with an input that is fixed in the short-run (vessel size) but that can be used with a variable input at suboptimal capacity. We use this model to get predictions for...