Pub Date : 2021-08-13DOI: 10.1080/13657305.2021.1963350
Kazi Tanvir Mahmud, A. Haque, I. Wahid, A. Parvez, Fahima Kabir
Abstract Access to credit is a major limitation for small-scale fish farmers in Bangladesh in pursuing their fish farming activities. One attempted remedy is that NGOs have created microcredit facilities to address this limitation. This study empirically assesses the impact of microcredit on the economic welfare of the poor fish farmers in the Mymensingh district of Bangladesh. Opinions of the fish farmers toward their economic well-being under microcredit programs have also been assessed by using the Binary Logistic Regression technique. Our empirical findings support the existing literature that access to credit can significantly contribute to the expansion of the economic welfare of the fish farmers in terms of household income and expenditure. Furthermore, our study demonstrates that an overwhelming proportion of the fish farmers has expressed satisfaction toward microcredit programs for uplifting their living-standard on economic indicators.
{"title":"Impact of microcredit on the household income and expenditure of the fish farmers: Bangladesh perspective","authors":"Kazi Tanvir Mahmud, A. Haque, I. Wahid, A. Parvez, Fahima Kabir","doi":"10.1080/13657305.2021.1963350","DOIUrl":"https://doi.org/10.1080/13657305.2021.1963350","url":null,"abstract":"Abstract Access to credit is a major limitation for small-scale fish farmers in Bangladesh in pursuing their fish farming activities. One attempted remedy is that NGOs have created microcredit facilities to address this limitation. This study empirically assesses the impact of microcredit on the economic welfare of the poor fish farmers in the Mymensingh district of Bangladesh. Opinions of the fish farmers toward their economic well-being under microcredit programs have also been assessed by using the Binary Logistic Regression technique. Our empirical findings support the existing literature that access to credit can significantly contribute to the expansion of the economic welfare of the fish farmers in terms of household income and expenditure. Furthermore, our study demonstrates that an overwhelming proportion of the fish farmers has expressed satisfaction toward microcredit programs for uplifting their living-standard on economic indicators.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"118 - 130"},"PeriodicalIF":3.9,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43695868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-06DOI: 10.1080/13657305.2021.1945166
Yixing Tian, Rose Croog, John Bovay, Anoushka Concepcion, Tessa L. Getchis, Miriah Kelly
Abstract We designed and implemented a discrete choice experiment to assess how information about the health, environmental, and economic benefits of locally produced aquaculture products affect Connecticut consumers’ willingness to pay (WTP) for products produced in the state, as compared with products from another state or another country. We find that information about local economic benefits tended to increase WTP for Connecticut-grown and -raised products, whereas information about health, safety, and the environment tended to decrease WTP for products from other regions. We also explore heterogeneous effects of the information treatments by respondent gender, education, and income.
{"title":"Who responds to health, environmental, and economic information about local food? Evidence from Connecticut seafood consumers","authors":"Yixing Tian, Rose Croog, John Bovay, Anoushka Concepcion, Tessa L. Getchis, Miriah Kelly","doi":"10.1080/13657305.2021.1945166","DOIUrl":"https://doi.org/10.1080/13657305.2021.1945166","url":null,"abstract":"Abstract We designed and implemented a discrete choice experiment to assess how information about the health, environmental, and economic benefits of locally produced aquaculture products affect Connecticut consumers’ willingness to pay (WTP) for products produced in the state, as compared with products from another state or another country. We find that information about local economic benefits tended to increase WTP for Connecticut-grown and -raised products, whereas information about health, safety, and the environment tended to decrease WTP for products from other regions. We also explore heterogeneous effects of the information treatments by respondent gender, education, and income.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"131 - 151"},"PeriodicalIF":3.9,"publicationDate":"2021-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1945166","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46622119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-31DOI: 10.1080/13657305.2021.1958105
C. Ewald, Erik Haugom, Leslie Kanthan, Gudbrand Lien, P. Salehi, S. Størdal
Abstract Futures on fresh farmed salmon traded at the Fish Pool market in Norway are analyzed in the context of the Capital Asset Pricing Model (CAPM) and a corresponding three-factor model where contracts are separated based on their maturities. Looking into 1 month; 6 months and 12 months contracts, we find that all alphas and most betas are statistically insignificant. We conclude that the CAPM equilibrium condition holds and that Salmon futures prices move largely uncorrelated with the market portfolio and therefore offer no systematic risk premium. The latter documents that Fish Pool futures should be considered as a pure hedging instrument rather than an investment asset.
{"title":"Salmon futures and the Fish Pool market in the context of the CAPM and a three-factor model","authors":"C. Ewald, Erik Haugom, Leslie Kanthan, Gudbrand Lien, P. Salehi, S. Størdal","doi":"10.1080/13657305.2021.1958105","DOIUrl":"https://doi.org/10.1080/13657305.2021.1958105","url":null,"abstract":"Abstract Futures on fresh farmed salmon traded at the Fish Pool market in Norway are analyzed in the context of the Capital Asset Pricing Model (CAPM) and a corresponding three-factor model where contracts are separated based on their maturities. Looking into 1 month; 6 months and 12 months contracts, we find that all alphas and most betas are statistically insignificant. We conclude that the CAPM equilibrium condition holds and that Salmon futures prices move largely uncorrelated with the market portfolio and therefore offer no systematic risk premium. The latter documents that Fish Pool futures should be considered as a pure hedging instrument rather than an investment asset.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"171 - 191"},"PeriodicalIF":3.9,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1958105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47698658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-10DOI: 10.1080/13657305.2021.1938295
C. Engle, Jonathan van Senten, Matthew O. Parker, D. Webster, Charles Clark
Abstract Availability of new oyster production methods offers a variety of choices for oyster farmers that include the overall business model, marketing strategy, scale of production, and the production method. Cost structures and relative profitability vary across production methods, scales, and business models. Maryland oyster farms were used as the basis for an assessment of the relative economic tradeoffs among traditional and newer, more intensive, production methods based on farm-level data. Oyster farmers in Maryland were interviewed in 2018 and 2019 to collect data from farm records on expenditures, prices, investment in equipment and facilities, and common problems. Production method/scale categories identified included annual production levels of ≤200 bushels and >200 bushels for traditional bottom culture and ≤6,000 and >6,000 boxes (100-count) for container culture. Cost structures were identified for each category, and accounting and economic net returns (profit) calculated for each (in $/bushel for traditional bottom culture and $/box for container culture). Stochastic dominance for profitability was assessed across the four farming categories. Cost structures differed substantially across the four categories, with fuel the greatest expense for traditional bottom culture farms and labor, followed by marketing costs, the greatest expenses for container culture farms. All categories were profitable based on accounting net returns, but only the large-scale farms for each production method were profitable in terms of economic net returns. The most profitable category was the large-scale container culture category followed by the large-scale bottom culture category, but the larger traditional bottom culture category was the least risky (by first-order stochastic dominance). Risk was substantially greater for the larger container culture category and for the smaller bottom culture category. Continued Extension support is needed to provide assistance with comprehensive business financial planning and risk mitigation (including efforts to reduce yield variability), especially for startup farms seeking to grow to provide full-time salaries for owners/operators.
{"title":"Economic tradeoffs and risk between traditional bottom and container culture of oysters on Maryland farms","authors":"C. Engle, Jonathan van Senten, Matthew O. Parker, D. Webster, Charles Clark","doi":"10.1080/13657305.2021.1938295","DOIUrl":"https://doi.org/10.1080/13657305.2021.1938295","url":null,"abstract":"Abstract Availability of new oyster production methods offers a variety of choices for oyster farmers that include the overall business model, marketing strategy, scale of production, and the production method. Cost structures and relative profitability vary across production methods, scales, and business models. Maryland oyster farms were used as the basis for an assessment of the relative economic tradeoffs among traditional and newer, more intensive, production methods based on farm-level data. Oyster farmers in Maryland were interviewed in 2018 and 2019 to collect data from farm records on expenditures, prices, investment in equipment and facilities, and common problems. Production method/scale categories identified included annual production levels of ≤200 bushels and >200 bushels for traditional bottom culture and ≤6,000 and >6,000 boxes (100-count) for container culture. Cost structures were identified for each category, and accounting and economic net returns (profit) calculated for each (in $/bushel for traditional bottom culture and $/box for container culture). Stochastic dominance for profitability was assessed across the four farming categories. Cost structures differed substantially across the four categories, with fuel the greatest expense for traditional bottom culture farms and labor, followed by marketing costs, the greatest expenses for container culture farms. All categories were profitable based on accounting net returns, but only the large-scale farms for each production method were profitable in terms of economic net returns. The most profitable category was the large-scale container culture category followed by the large-scale bottom culture category, but the larger traditional bottom culture category was the least risky (by first-order stochastic dominance). Risk was substantially greater for the larger container culture category and for the smaller bottom culture category. Continued Extension support is needed to provide assistance with comprehensive business financial planning and risk mitigation (including efforts to reduce yield variability), especially for startup farms seeking to grow to provide full-time salaries for owners/operators.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"25 1","pages":"472 - 503"},"PeriodicalIF":3.9,"publicationDate":"2021-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1938295","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47041614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-06DOI: 10.1080/13657305.2021.1947414
Duong The Duy, Trinh Quoc Trung, T. Lan, H. Berg, Chau Thi Da
Abstract This study assesses capital assets and factors influencing on farmers’ decision to participate in social networks, and how these contribute to and affect household’s profits of small-scale shrimp farmers in four coastal provinces in the Mekong Delta, Vietnam. Data was collected through observations, and informal discussions and interviews with 350 small-scale shrimp farmer households. The results show that farmer’s age, education of household head, dependency ratio, village residence time, village population density are important factors influencing positively on shrimp farmers´ participation in social networks. The study also shows that contacts with fisheries association, traders, wholesale agencies, trust, household savings, labors’ education, household’s agricultural land size, post larvae quality and equipment significantly influenced on the profit variable with 1–10%. The results also indicate that a 10% increase in social capital would bring an increase in household income of 3.9%.
{"title":"Assessment of the impacts of social capital on the profit of shrimp farming production in the Mekong Delta, Vietnam","authors":"Duong The Duy, Trinh Quoc Trung, T. Lan, H. Berg, Chau Thi Da","doi":"10.1080/13657305.2021.1947414","DOIUrl":"https://doi.org/10.1080/13657305.2021.1947414","url":null,"abstract":"Abstract This study assesses capital assets and factors influencing on farmers’ decision to participate in social networks, and how these contribute to and affect household’s profits of small-scale shrimp farmers in four coastal provinces in the Mekong Delta, Vietnam. Data was collected through observations, and informal discussions and interviews with 350 small-scale shrimp farmer households. The results show that farmer’s age, education of household head, dependency ratio, village residence time, village population density are important factors influencing positively on shrimp farmers´ participation in social networks. The study also shows that contacts with fisheries association, traders, wholesale agencies, trust, household savings, labors’ education, household’s agricultural land size, post larvae quality and equipment significantly influenced on the profit variable with 1–10%. The results also indicate that a 10% increase in social capital would bring an increase in household income of 3.9%.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"152 - 170"},"PeriodicalIF":3.9,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1947414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47355636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.1080/13657305.2021.1946205
L. Lebel, Khin Maung Soe, Nguyen Thanh Phuong, H. Navy, Phouvin Phousavanh, T. Jutagate, P. Lebel, Liwa Pardthaisong, M. Akester, B. Lebel
Abstract Public health measures aimed at reducing the spread of COVID-19 can have significant, unintended impacts on livelihoods. In this paper, we assess the impacts of responses to the COVID-19 pandemic on aquaculture farmers in five countries in the Mekong Region. A total of 1,019 farmers were surveyed (June–August 2020). The COVID-19 pandemic reduced farmer mobility, disrupted input and produce logistics, and reduced consumer demand, which in turn, reduced net income relative to expectations and increased the likelihood of making a net loss in the first half of 2020. Large aquaculture farms were more likely to experience adverse impacts from higher input prices and lower fish market prices than small farms. Intensive and commercial farms were more likely to be affected by supplier and buyer logistic disruptions. Coping responses included adjustments to stocking practices, reducing labor inputs, finding new markets, drawing on savings, and borrowing money. Large farms were more likely to seek new markets and borrow money. Easier loan conditions and direct cash handouts by governments helped in some locations and were desired in others. Significant differences among countries in impacts and responses reflect market and trade dependencies, as well as government capacity and willingness to support the aquaculture industry.
{"title":"Impacts of the COVID-19 pandemic response on aquaculture farmers in five countries in the Mekong Region","authors":"L. Lebel, Khin Maung Soe, Nguyen Thanh Phuong, H. Navy, Phouvin Phousavanh, T. Jutagate, P. Lebel, Liwa Pardthaisong, M. Akester, B. Lebel","doi":"10.1080/13657305.2021.1946205","DOIUrl":"https://doi.org/10.1080/13657305.2021.1946205","url":null,"abstract":"Abstract Public health measures aimed at reducing the spread of COVID-19 can have significant, unintended impacts on livelihoods. In this paper, we assess the impacts of responses to the COVID-19 pandemic on aquaculture farmers in five countries in the Mekong Region. A total of 1,019 farmers were surveyed (June–August 2020). The COVID-19 pandemic reduced farmer mobility, disrupted input and produce logistics, and reduced consumer demand, which in turn, reduced net income relative to expectations and increased the likelihood of making a net loss in the first half of 2020. Large aquaculture farms were more likely to experience adverse impacts from higher input prices and lower fish market prices than small farms. Intensive and commercial farms were more likely to be affected by supplier and buyer logistic disruptions. Coping responses included adjustments to stocking practices, reducing labor inputs, finding new markets, drawing on savings, and borrowing money. Large farms were more likely to seek new markets and borrow money. Easier loan conditions and direct cash handouts by governments helped in some locations and were desired in others. Significant differences among countries in impacts and responses reflect market and trade dependencies, as well as government capacity and willingness to support the aquaculture industry.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"25 1","pages":"298 - 319"},"PeriodicalIF":3.9,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1946205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49304956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-21DOI: 10.1080/13657305.2021.1917727
L. Lebel, T. Jutagate, Nguyen Thanh Phuong, M. Akester, Amornrat Rangsiwiwat, P. Lebel, Phouvin Phousavanh, H. Navy, Khin Maung Soe, B. Lebel
Abstract As comparative multi-country studies are rare, not much is known about the effects of regional differences in social-ecological conditions on the adoption of climate risk management practices in aquaculture. This study is based on a large-scale survey of practices of aquaculture operators in Cambodia, Laos, Myanmar, Thailand, and Vietnam. Climate-related risks to profits of aquaculture farms in the Mekong Region are typically managed alongside water-related, disease and other business risks. Farmers who were more concerned with risks to profitability had a history of undertaking more risk management practices. Farmers growing shrimp (rather than fish), or adopting more intensified production systems, had more risk management practices. Wealthier and more educated farmers had experience with more practices for dealing with current risks, as well as recognized the need for strategies to adapt to a changing climate in the future. Information access is a factor in the adoption of new practices and strategies. Adoption of aeration or use of information-communication technologies to manage climate-related risks, for example, was more likely among more educated and wealthy farmers who belonged to growers’ groups. The findings also suggest that attitudes toward innovation, levels of investment and social norms influence adoption of technological, organizational and informational practices.
{"title":"Climate risk management practices of fish and shrimp farmers in the Mekong Region","authors":"L. Lebel, T. Jutagate, Nguyen Thanh Phuong, M. Akester, Amornrat Rangsiwiwat, P. Lebel, Phouvin Phousavanh, H. Navy, Khin Maung Soe, B. Lebel","doi":"10.1080/13657305.2021.1917727","DOIUrl":"https://doi.org/10.1080/13657305.2021.1917727","url":null,"abstract":"Abstract As comparative multi-country studies are rare, not much is known about the effects of regional differences in social-ecological conditions on the adoption of climate risk management practices in aquaculture. This study is based on a large-scale survey of practices of aquaculture operators in Cambodia, Laos, Myanmar, Thailand, and Vietnam. Climate-related risks to profits of aquaculture farms in the Mekong Region are typically managed alongside water-related, disease and other business risks. Farmers who were more concerned with risks to profitability had a history of undertaking more risk management practices. Farmers growing shrimp (rather than fish), or adopting more intensified production systems, had more risk management practices. Wealthier and more educated farmers had experience with more practices for dealing with current risks, as well as recognized the need for strategies to adapt to a changing climate in the future. Information access is a factor in the adoption of new practices and strategies. Adoption of aeration or use of information-communication technologies to manage climate-related risks, for example, was more likely among more educated and wealthy farmers who belonged to growers’ groups. The findings also suggest that attitudes toward innovation, levels of investment and social norms influence adoption of technological, organizational and informational practices.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"25 1","pages":"388 - 410"},"PeriodicalIF":3.9,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1917727","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44467873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-03DOI: 10.1080/13657305.2020.1857469
Ursula Landazuri-Tveteraas, Atle Oglend, M. Steen, Hans‐Martin Straume
Abstract This study investigates potential economic reasons why the production of trout is maintained in Norway by analyzing prices and production for Norwegian Atlantic salmon and trout. The species Atlantic salmon dominates the global salmon market, but its two largest producers, Norway and Chile also farm in sea pens significant quantities of large rainbow trout (as opposed to portion-sized Rainbow trout farmed in freshwaters in other parts of the World, e.g., Iran, Peru, Turkey, and others). Suggesting that these trout have some attributes that make it a useful complement to Atlantic salmon. We investigate development in supply volumes of these species and conduct a cointegration analysis using monthly prices from 2000 to 2018. The results show that the markets for fresh and frozen rainbow trout are tightly integrated with fresh Atlantic salmon, and, where the latter is a price leader. This means that many consumers consider the two products as substitutes, with no clear preferences. There is no apparent productivity argument for the continued production of rainbow trout vis-à-vis Atlantic salmon. However, there may exist a fringe of consumers that prefer its characteristics, motivating firms to maintain its production as a means of diversification.
{"title":"Salmon trout, the forgotten cousin?","authors":"Ursula Landazuri-Tveteraas, Atle Oglend, M. Steen, Hans‐Martin Straume","doi":"10.1080/13657305.2020.1857469","DOIUrl":"https://doi.org/10.1080/13657305.2020.1857469","url":null,"abstract":"Abstract This study investigates potential economic reasons why the production of trout is maintained in Norway by analyzing prices and production for Norwegian Atlantic salmon and trout. The species Atlantic salmon dominates the global salmon market, but its two largest producers, Norway and Chile also farm in sea pens significant quantities of large rainbow trout (as opposed to portion-sized Rainbow trout farmed in freshwaters in other parts of the World, e.g., Iran, Peru, Turkey, and others). Suggesting that these trout have some attributes that make it a useful complement to Atlantic salmon. We investigate development in supply volumes of these species and conduct a cointegration analysis using monthly prices from 2000 to 2018. The results show that the markets for fresh and frozen rainbow trout are tightly integrated with fresh Atlantic salmon, and, where the latter is a price leader. This means that many consumers consider the two products as substitutes, with no clear preferences. There is no apparent productivity argument for the continued production of rainbow trout vis-à-vis Atlantic salmon. However, there may exist a fringe of consumers that prefer its characteristics, motivating firms to maintain its production as a means of diversification.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"25 1","pages":"159 - 176"},"PeriodicalIF":3.9,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2020.1857469","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45187179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-30DOI: 10.1080/13657305.2021.1896605
L. Long
Abstract This study employed data envelopment analysis with a two-stage bootstrapping technique to analyze cost efficiency in aquaculture using the case of intensive white-leg shrimp farming in Phu Yen province, Vietnam. By adopting the bootstrap procedure in the first stage, the bias-corrected point estimate of cost efficiency was 0.604 with the lower limit of 0.541 and the upper limit of 0.687 at the 95% confidence interval. Moreover, allocative inefficiency, implying the inappropriateness of input mixes—given their respective prices—was found to be the primary cause of cost inefficiency in this aquaculture. The result from bootstrap truncated regression in the second stage suggested that lower input levels of chemicals/drugs and fingerlings and higher input levels of feed used per ha may help to increase the cost-efficiency of shrimp farming. Policies for better access to formal credit are very important in improving cost efficiency in this aquaculture.
{"title":"Cost efficiency analysis in aquaculture: Data envelopment analysis with a two-stage bootstrapping technique","authors":"L. Long","doi":"10.1080/13657305.2021.1896605","DOIUrl":"https://doi.org/10.1080/13657305.2021.1896605","url":null,"abstract":"Abstract This study employed data envelopment analysis with a two-stage bootstrapping technique to analyze cost efficiency in aquaculture using the case of intensive white-leg shrimp farming in Phu Yen province, Vietnam. By adopting the bootstrap procedure in the first stage, the bias-corrected point estimate of cost efficiency was 0.604 with the lower limit of 0.541 and the upper limit of 0.687 at the 95% confidence interval. Moreover, allocative inefficiency, implying the inappropriateness of input mixes—given their respective prices—was found to be the primary cause of cost inefficiency in this aquaculture. The result from bootstrap truncated regression in the second stage suggested that lower input levels of chemicals/drugs and fingerlings and higher input levels of feed used per ha may help to increase the cost-efficiency of shrimp farming. Policies for better access to formal credit are very important in improving cost efficiency in this aquaculture.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"77 - 97"},"PeriodicalIF":3.9,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1896605","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42874623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-29DOI: 10.1080/13657305.2021.1897190
Venticia Hukom, R. Nielsen, M. Nielsen
Abstract Shrimp polyculture is an important activity in South East Asia, providing a livelihood and food for small-scale farmers. However, farmers are facing challenges due to increasing environmental problems in rivers used as the primary source of water in aquaculture pond production. To deal with these challenges, farmers have organized co-management communities, which gives them a stronger voice among river users. This study investigates the effects of co-management on technical efficiency and environmental stressors using a second-stage Data Envelopment Analysis model. Environmental stressors are identified through interviews with 306 farmers in eight sub-districts, of which two are practicing co-management. The results show that farmers in areas with co-management have relatively high technical efficiency after taking other drivers into account. Furthermore, the farmer’s technical efficiency seems to be less affected by the identified environmental stressors. In conclusion, co-management could be used as a tool to improve technical efficiency and limit stress factors for farmers. It could be initiated by the farmers themselves or by policymakers and natural resource managers and could improve the livelihoods of small-scale shrimp polyculture farmers.
{"title":"Effects of co-management on technical efficiency and environmental stressors: An application to small-scale shrimp polyculture in Indonesia","authors":"Venticia Hukom, R. Nielsen, M. Nielsen","doi":"10.1080/13657305.2021.1897190","DOIUrl":"https://doi.org/10.1080/13657305.2021.1897190","url":null,"abstract":"Abstract Shrimp polyculture is an important activity in South East Asia, providing a livelihood and food for small-scale farmers. However, farmers are facing challenges due to increasing environmental problems in rivers used as the primary source of water in aquaculture pond production. To deal with these challenges, farmers have organized co-management communities, which gives them a stronger voice among river users. This study investigates the effects of co-management on technical efficiency and environmental stressors using a second-stage Data Envelopment Analysis model. Environmental stressors are identified through interviews with 306 farmers in eight sub-districts, of which two are practicing co-management. The results show that farmers in areas with co-management have relatively high technical efficiency after taking other drivers into account. Furthermore, the farmer’s technical efficiency seems to be less affected by the identified environmental stressors. In conclusion, co-management could be used as a tool to improve technical efficiency and limit stress factors for farmers. It could be initiated by the farmers themselves or by policymakers and natural resource managers and could improve the livelihoods of small-scale shrimp polyculture farmers.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"98 - 117"},"PeriodicalIF":3.9,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13657305.2021.1897190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41561999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：