SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Kirkley, James E.; Walden, John B.; Waters, James R..

National Oceanic and Atmospheric Administration Fisheries has conducted several buyback programs to reduce harvesting capacity in fisheries. These programs have attempted to maximize capacity reduction given a fixed budget. However, restructuring issues have not been considered. We explore the possibility of satisfying three different buyback objective We examine the black sea bass trap fishery and determine the number of vessels given different allowable catch levels and objectives of maximizing technical efficiency, capacity utilization, and vessels in the fishery. We find considerable variation in the number of vessels allowed to remain in the fishery given the different objectives.

Tipo: Journal Article

Palavras-chave: Capacity utilization; Data Envelopment Analysis; Fishery buyback programs; Fishing capacity; C61; D24; Q22; Q28.

Ano: 2004

URL: http://purl.umn.edu/43422

Marine Protected Areas as Fishery Policy: A Discussion of Potential Costs and Benefits

Sanchirico, James N..

Marine protected areas (MPAs) are currently receiving considerable attention as a "new" tool to control overexploitation. Many advocates argue that MPAs will provide a plethora of benefits ranging from improved habitat to higher fish stocks with little costs. Fishermen argue, not surprisingly, that the costs resulting from closing areas could be significant and need to be considered in the debate. In this paper, a set of biological, industry, and management hypotheses drawn from the literature analyzing the effects of MPAs are discussed. In doing so, a framework is presented that can be used to assess the expected returns to society from investing in MPAs.

Consumer Awareness, Perceptions and Behaviour Towards Farmed Versus Wild Fish

Palavras-chave: Renewable resources; Fisheries; Marine protected areas; No-take zones; Resource /Energy Economics and Policy; Q22; Q28.

Ano: 2000

URL: http://purl.umn.edu/10728

Verbeke, Wim; Brunso, Karen.

This study provides empirical evidence about European consumer awareness, perceptions and behavior towards farmed and wild fish. The evidence is based on three empirical studies: a consumer survey in Belgium in March 2003, focus group discussions with consumers in Belgium and Spain in May 2004, and a pan-European consumer survey with a sample of 4,786 fish consumers in Belgium, the Netherlands, Denmark, Span and Poland in November-December 2004. Consumer awareness about the farmed or wild origin of fish is rather poor, particular among lighter fish user groups. Perceptions are quite diverse across Europe. Furthermore, perceptions often contrast with current scientific evidence, in particular with respect to behalf and nutritional value where consumers...

Eficiencia tecnica en pesquerias multiespecie: una aproximacion primal

Palavras-chave: Attitude; Aquaculture; Consumer; Fish; SEAFOODplus; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries; D12; M31; Q13; Q22.

Ano: 2005

URL: http://purl.umn.edu/56075

Orea, Luis; Pinilla, Antonio Alvarez.

RESUMEN: El objetivo de este trabajo es estudiar, desde el punto de vista primal, la eficiencia técnica de una muestra de barcos dedicados a la pesca de merluza en Asturias. Un rasgo característico de esta actividad es la importancia que tienen las capturas de otras especies distintas de la merluza. La naturaleza multiproducto de esta actividad plantea distintas alternativas de modelización. En este trabajo se comparan los resultados obtenidos a partir de la estimación de una función de producción agregada, una función de producción multiproducto y una función de distancia. Los tres modelos se estiman utilizando el estimador intragrupos. En una segunda etapa, los índices de eficiencia se calculan a partir de los efectos individuales una vez eliminada la...

Tipo: Journal Article

Palavras-chave: Efficiency; Distance function; Multiproduct; Fisheries; Resource /Energy Economics and Policy; Q22; P11.

Ano: 2002

URL: http://purl.umn.edu/28758

The Governance Economics of Capture and Aquaculture Fisheries

Thomson, Kenneth J..

The “new institutional economics” has influenced the study of public (or policy) choice, e.g. via the organization and incentives of “stakeholders”, and the analysis of international and other (e.g. state-private) agreements. Stakeholders in fisheries policy include fisherman and their families and communities, processors, scientists, environmentalists, fish product consumers, other (non-fishing-)marine, coastal and land users, government fisheries departments, and taxpayers. These play different roles, with different weights, in policy discussions, as shown in the reformed Common Fisheries Policy (CFP) of the European Union. The recently set up North Sea Regional Advisory Committee is used as an illustration. Conclusions suggest that successful...

Can Co-Management Improve the Governance of A Common- Pool Resource? Lessons From A Framed Field Experiment in A Marine Protected Area in the Colombian Caribbean

Palavras-chave: Fisheries; Aquaculture; Governance; Policy; North Sea; Livestock Production/Industries; Q22.

Ano: 2005

URL: http://purl.umn.edu/55991

Moreno-Sanchez, Rocio del Pilar; Maldonado, Jorge Higinio.

Complexities associated with the management of common pool resources (CPR) threaten governance at some marine protected areas (MPA). In this paper, using economic experimental games (EEG), we investigate the effects of both external regulation and the complementarities between internal regulation and non-coercive authority intervention—what we call co-management—on fishermen’s extraction decisions. We perform EEG with fishermen inhabiting the influence zone of an MPA in the Colombian Caribbean. The results show that co- management exhibits the best results, both in terms of resource sustainability and reduction in extraction, highlighting the importance of strategies that recognize communities as key actors in the decision-making process for the...

The Impacts of Marine Reserves on Limited-Entry Fisheries

Palavras-chave: Common-pool resources; Governance; Co-management; Experimental economic games; Fisheries; Latin America.; Environmental Economics and Policy; C93; C72; D02; D70; Q01; Q22; Q28; C23; C25.

Ano: 2009

URL: http://purl.umn.edu/60731

Sanchirico, James N.; Wilen, James E..

We utilize a spatial bioeconomic model to investigate the impacts of creating reserves on limited-entry fisheries. We find that reserve creation can produce win-win situations where aggregate biomass and the common license (lease) price increase. These situations arise in biological systems where dispersal processes are prevalent and the fishery prior to reserve creation is operating at effort levels in a neighborhood of open-access levels. We also illustrate that using strictly biological criteria for siting reserves (e.g., setting aside the most biological productive areas) will likely induce the most vociferous objections from the fishing industry. In general, we find that the dispersal rate and the degree the patches are connected play a significant...

Dynamic Effects of Grain and Energy Prices on the Catfish Feed and Farm Sectors

Palavras-chave: Fisheries; Limited-entry; Marine reserves; Resource /Energy Economics and Policy; Q22; R10.

Ano: 2000

URL: http://purl.umn.edu/10487

Muhammad, Andrew; Zheng, Hualu.

This study examines the dynamic effects of grain prices and energy prices on catfish feed prices and the price of food-sized catfish at the farm level. Using the autoregressive distributed lag model and bounds testing procedure, a long-run relationship between feed and farm prices and their determinants was confirmed. Given the effect of corn and soybean meal prices on catfish feed prices, and catfish fish feed prices on farm prices, the long-run responsiveness of feed prices to a percentage increase in U.S. ethanol production is 0.325, and the responsiveness of catfish farm prices is 0.064. Although both feed and farm prices increase with ethanol production, the relatively small responsiveness of farm prices when compared with feed prices suggests that...

Tipo: Journal Article

Palavras-chave: Catfish; Prices; Autoregressive distributed lag (ARDL) model; Ethanol; Feed; Corn; Soybeans; Agribusiness; Agricultural Finance; Demand and Price Analysis; Financial Economics; Institutional and Behavioral Economics; Marketing; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy; C32; Q11; Q22.

Ano: 2010

URL: http://purl.umn.edu/100520

Import Demand Estimation and the Generalized Composite Commodity Theorem

Asche, Frank; Guttormsen, Atle G.; Kristofersson, Dadi; Roheim, Cathy A..

A frequently encountered problem in import demand estimation is how to account for competition between imports and domestic production. Traditionally, use of the Armington model has been a way to handle this problem. This is a disaggregate model which distinguishes commodities by country of origin with import demand determined in a separable two-step procedure. The model appears frequently in analysis of international agricultural markets. However, the Armington model relies on a set of weak separability assumptions, which several authors have shown to be highly questionable. In this paper, a new aggregation theorem, the Generalized Composite Commodity Theorem (GCCT), is applied to test whether imports can be treated as a separate group. An advantage with...

Credit Accessibility, Risk Attitude, and Social Learning: Investment Decisions of Aquaculture in Rural Indonesia

Palavras-chave: Armington; Separability; GCCT; Demand system; Sword fish; International Relations/Trade; F18; Q11; Q22.

Ano: 2005

URL: http://purl.umn.edu/19432

Miyata, Sachiko; Sawada, Yasuyuki.

This study examines the factors that influenced poor Indonesian farmers to invest in floating net aquaculture after being relocated due to a reservoir construction project. To compare three primary decision factors, credit accessibility, risk attitudes, and social learning, (i.e., learning effects from others experience), we analyze 16 years of socio-economic retrospective data collected in the field interviews exclusively for this study. Our analysis reveals that credit accessibility and risk attitudes are the most important factors that influence the rate of aquaculture investment. Social learning as well as household education also influences the investment decision significantly. Our results suggest that developmen t projects that involve voluntary...

The Benefits and Costs of Fish Consumption Advisories for Mercury

Palavras-chave: Household investment decision; Credit constraints; Risk attitudes; Social learning; Panel data; Farm Management; D1; D8; D12; Q22.

Ano: 2006

URL: http://purl.umn.edu/25669

Jakus, Paul M.; McGuinness, Meghan; Krupnick, Alan J..

Mercury contamination of the Chesapeake Bay is a concern to health authorities in the region. We evaluate the economic and health effects of postulated recreational and commercial fishing advisories for striped bass on the Maryland portion of the bay. Awareness of and response to the advisory is estimated using a meta-analysis of the literature. Three values are estimated: welfare losses to recreational anglers, welfare losses in the commercial striped bass fishery, and health benefits. An estimate of percentage of consumer surplus loss is applied to the value of all fishing days in the bay to estimate recreational welfare loss. Welfare losses to the commercial fishery are estimated based on a model of supply and demand. Health benefits are estimated using...

U.S. Demand for Source–Differentiated Shrimp: A Differential Approach

Palavras-chave: Fisheries; Mercury; Advisories; Recreation; Health benefits; Consumer/Household Economics; I18; Q22; Q25; Q26.

Ano: 2002

URL: http://purl.umn.edu/10853

Jones, Keithly G.; Harvey, David J.; Hahn, William F.; Muhammad, Andrew.

Estimates of price and scale elasticities for U.S. consumed shrimp are derived using aggregate shrimp data differentiated by source country. Own-price elasticities for all countries had the expected negative signs, were statistically significant, and inelastic. The scale elasticities for all countries were positive and statistically significant at the 1% level with only the United States and Ecuador having scale elasticities of less than one. For the most part, the compensated demand effects showed that most of the cross-price effects were positive. Our results also suggest that despite the countervailing duties imposed by the United States, shrimp demand was fairly stable.

Tipo: Journal Article

Palavras-chave: CBS; Conditional demand; Countervailing duty; Imports; Scale elasticity; Shrimp; Agribusiness; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; C32; D12; Q13; Q22.

Ano: 2008

URL: http://purl.umn.edu/47202

Yellowfin Tuna in the Market for High Value Agricultural Products: Competitive Capability in Dominica

Theophille, Brent; Hutchinson, Sharon D.; Iton, Ardon.

Belize City, Belize 23rd - 27th July, 2007

Tipo: Presentation

Palavras-chave: Yellowfin tuna; High-value product; Competitiveness; Fisheries; Dominica.; Agribusiness; Q22; Q13.

Ano: 2009

URL: http://purl.umn.edu/122888

A Comparison of Parametric Approximation Techniques to Continuous-Time Stochastic Dynamic Programming Problems

Does Scarcity Exacerbate the Tragedy of the Commons? Evidence from Fishers’ Experimental Responses

Kompas, Tom; Chu, Long.

We compare three parametric techniques to approximate Hamilton-Jacobi-Bellman equations via unidimensional and multidimensional problems. The linear programming technique is very efficient for unidimensional problems and offers a balance of speed and accuracy for multidimensional problems. A comparable projection technique is shown to be slow, but has stable accuracy, whereas a perturbation technique has the least accuracy although its speed suffers least from the curse of dimensionality. The linear programming technique is also shown to be suitable for problems in resource management, including applications to biosecurity and marine reserve design.

Tipo: Journal Article

Palavras-chave: Stochastic dynamic programming; Parametric approximation; Perturbation; Projection; Linear programming; Optimal fishing; Marine reserves; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; C61; C63; Q22.

Ano: 2010

URL: http://purl.umn.edu/95044

Maldonado, Jorge Higinio; Moreno-Sanchez, Rocio del Pilar.

Economic Experimental Games (EEGs), focused to analyze dilemmas associated with the use of common pool resources, have shown that individuals make extraction decisions that deviate from the suboptimal Nash equilibrium. However, few studies have analyzed whether these deviations towards the social optimum are affected as the stock of resource changes. Performing EEG with local fishermen, we test the hypothesis that the behavior of participants differs under a situation of abundance versus one of scarcity. Our findings show that under a situation of scarcity, players over-extract a given resource, and thus make decisions above the Nash equilibrium; in doing so, they obtain less profit, mine the others-regarding interest, and exacerbate the tragedy of the...

Economic Evaluation of Catch Share Program: Rhode Island Fluke Fishery Sector Pilot Program

Palavras-chave: Tragedy of the commons intensified; Economic experimental games; Resource abundance; Resource scarcity; Dynamic effects; Community/Rural/Urban Development; Environmental Economics and Policy; Institutional and Behavioral Economics; Land Economics/Use; Public Economics; D01; D02; D03; O13; O54; Q01; Q22; C93; C72; C73; C23.

Ano: 2009

URL: http://purl.umn.edu/91170

Anderson, Christopher M.; Uchida, Hirotsugu; Scheld, Andrew M..

Economic Viability of Polyculture of Nile Tilapia and Australian Redclaw Crayfish in Yucatan State, Mexico

Palavras-chave: Catch share; Sector allocation; Fishery management; Demand and Price Analysis; Resource /Energy Economics and Policy; Q22; Q28.

Ano: 2010

URL: http://purl.umn.edu/61729

Ponce-Marban, Donny; Hernandez, Juan; Gasca-Leyva, Eucario.

Tilapia culture in rural communities of the state of Yucatan, Mexico, has been increasing in recent decades. Polyculture of tilapia with other more commercially valuable species is an opportunity to substantially improve the economic yields of rural producers. The economic viability of implementing a Nile tilapia with Australian redclaw crayfish polyculture was analyzed using profitability indicators such as internal rate of return (IRR) and net present value of the investment (NPV). A bioeconomic model was developed to simulate three production densities (33/0, 33/20, tilapia and crayfish, respectively), accounting for investment recuperation in time horizons of 5, 10 and 15 years. The model includes a biological sub-model describing the growth of...

Responsible Fisheries Through an Investigation into Small Pelagic Fishery in the Italian Adriatic Sea

Palavras-chave: Economic Viability; Polyculture; Nile Tilapia; Australian Redclaw Crayfish; Yucatan; Mexico; Livestock Production/Industries; O13; Q22.

Ano: 2005

URL: http://purl.umn.edu/56080

Finco, Adele; Di Pronio, Guido; Sirolla, G.; Occhionero, M..

The FAO Code of Conduct for Responsible Fisheries aims at establishing principles and criteria for the elaboration and implementation of national policies for sustainable fisheries management and development. This objective consists in the identification of correct policy measures on the fish market, which have a strategic consequence on Maximum Sustainable Yield. The paper provides an investigation into small pelagic fishery in some areas of the Italian Adriatic Sea through the time series method; the investigation is applied to landed captures and prices. The analysis approach is based on annual data acquired empirically. The study focuses first on the main dynamics in the period 1976-1986. IN particular, historical data concerning market quantities...

Asset Pricing in Created Markets for Fishing Quotas

Palavras-chave: Responsible fisheries; Small pelagic fishery; Fish market policy; Time series; Quality; Livestock Production/Industries; Q22; C32.

Ano: 2005

URL: http://purl.umn.edu/56081

Newell, Richard G.; Papps, Kerry L.; Sanchirico, James N..

We investigate the applicability of the present-value asset pricing model to fishing quota markets by applying instrumental variable panel data estimation techniques to 15 years of market transactions from New Zealand's individual fishing quota market. In addition to the influence of current fishing rents (as measured by lease prices), we explore the effect of market interest rates, risk, and expected changes in future rents on quota asset prices. Controlling for these other factors, the results support a fairly simple relationship between quota asset and contemporaneous lease prices. Consistent with theoretical expectations, the results indicate that quota asset prices are positively related to declines in interest rates, lower levels of risk, expected...