首页 > 最新文献

Aquaculture Economics & Management最新文献

英文 中文
Technical and scale efficiency of intensive white-leg shrimp (Litopenaeus vannamei) farming in Vietnam: A data envelopment analysis 越南南美白对虾集约养殖技术与规模效益的数据包络分析
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-11-24 DOI: 10.1080/13657305.2021.2003483
P. Ngoc, Vu-Hoang Le, T. Pham, H. Pham, T. C. Le, A. Oude Lansink
Abstract Intensive shrimp production is a potential pathway to increasing export quantity and meeting Vietnamese national export targets set for the 2020–2030 period. Vietnamese farmers need to efficiently manage their shrimp farming to compete in global markets. This study aims to investigate input- and output-specific technical and scale inefficiencies in Vietnamese shrimp farming practice and their determinants. The research used a survey among 200 shrimp farmers from Ca Mau, Kien Giang, and Soc Trang provinces in Vietnam, and applied a two-stage approach with a Russell-type (input–output) directional distance function for measuring input- and output-specific technical inefficiency, and a bootstrap truncated regression for exploring the determinants of inefficiencies. Results show that main drivers of technical inefficiencies in Vietnamese intensive white-leg shrimp farms are inappropriate management of energy (inefficiency of 32%), seed (inefficiency of 22%) and shrimp yield production (88%). Furthermore, male farmers experienced in shrimp farming, with proper training and applied plastic-lined ponds are generally better in managing pond areas, use of seed, feed, and labor. Technological innovations, better post larvae quality and their stocking management can help to improve shrimp farming performance.
集约化虾生产是增加出口数量和实现越南2020-2030年国家出口目标的潜在途径。越南农民需要有效地管理他们的虾养殖,以在全球市场上竞争。本研究旨在调查越南虾养殖实践中投入和产出特定技术和规模效率低下及其决定因素。该研究对来自越南金瓯省、江西省和上庄省的200名虾农进行了调查,并采用了一种两阶段方法,采用罗素型(投入产出)方向距离函数来衡量投入和产出特定的技术效率低下,并采用自引导截断回归来探索效率低下的决定因素。结果表明,越南集约化白腿对虾养殖场技术效率低下的主要驱动因素是能源管理不当(效率低下32%)、种子管理不当(效率低下22%)和对虾产量管理不当(效率低下88%)。此外,在虾类养殖方面有经验的男性养殖者,经过适当的培训和使用塑料衬里的池塘,通常在管理池塘区域、使用种子、饲料和劳动力方面做得更好。技术创新、更好的后期幼虫质量及其放养管理有助于提高对虾养殖性能。
{"title":"Technical and scale efficiency of intensive white-leg shrimp (Litopenaeus vannamei) farming in Vietnam: A data envelopment analysis","authors":"P. Ngoc, Vu-Hoang Le, T. Pham, H. Pham, T. C. Le, A. Oude Lansink","doi":"10.1080/13657305.2021.2003483","DOIUrl":"https://doi.org/10.1080/13657305.2021.2003483","url":null,"abstract":"Abstract Intensive shrimp production is a potential pathway to increasing export quantity and meeting Vietnamese national export targets set for the 2020–2030 period. Vietnamese farmers need to efficiently manage their shrimp farming to compete in global markets. This study aims to investigate input- and output-specific technical and scale inefficiencies in Vietnamese shrimp farming practice and their determinants. The research used a survey among 200 shrimp farmers from Ca Mau, Kien Giang, and Soc Trang provinces in Vietnam, and applied a two-stage approach with a Russell-type (input–output) directional distance function for measuring input- and output-specific technical inefficiency, and a bootstrap truncated regression for exploring the determinants of inefficiencies. Results show that main drivers of technical inefficiencies in Vietnamese intensive white-leg shrimp farms are inappropriate management of energy (inefficiency of 32%), seed (inefficiency of 22%) and shrimp yield production (88%). Furthermore, male farmers experienced in shrimp farming, with proper training and applied plastic-lined ponds are generally better in managing pond areas, use of seed, feed, and labor. Technological innovations, better post larvae quality and their stocking management can help to improve shrimp farming performance.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"50 - 65"},"PeriodicalIF":3.9,"publicationDate":"2021-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43539545","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}
引用次数: 8
Developing a bioeconomic framework for scallop culture optimization and product development 开发扇贝养殖优化和产品开发的生物经济框架
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-11-22 DOI: 10.1080/13657305.2021.2000517
Struan Coleman, D. Morse, W. C. Brayden, D. Brady
Abstract Aquaculture is the fastest growing food production sector in the world and is quickly diversifying. In the Northwest Atlantic, interest in sea scallop (Placopecten magellanicus) (hereafter scallop) aquaculture has grown substantially. However, technical and economic challenges have hindered industry growth. We conducted bioeconomic simulations for various sized farms that targeted either live “whole” scallops or the shucked adductor muscle “meat.” The majority of farms selling whole scallops were profitable. However, all farms selling meats generated negative returns. Labor made up the greatest portion of costs in model simulations and increased linearly with farm size, representing a significant bottleneck. Whole scallop farm value was most sensitive to changes in (1) market price and (2) time to market. Our analysis suggests four strategies to increase farmed scallop production in the Northwest Atlantic: (1) mechanize low density net culture, (2) optimize net stocking densities, (3) build site selection tools, and (4) invest in consumer education, end-markets, and biotoxin testing for whole scallops. The sector will require a combination of regulatory, industry, and research cooperation to overcome these pressing challenges, but holds the potential to profitably diversify the bivalve aquaculture industry.
水产养殖是世界上增长最快的粮食生产部门,并且正在迅速多样化。在西北大西洋,对海扇贝(Placopecten magellanicus)(以下简称扇贝)水产养殖的兴趣已大幅增长。然而,技术和经济挑战阻碍了行业的发展。我们对不同规模的养殖场进行了生物经济模拟,这些养殖场的目标要么是活的“整”扇贝,要么是脱壳后的内收肌“肉”。大多数出售整条扇贝的农场都是有利可图的。然而,所有出售肉类的农场都产生了负回报。在模型模拟中,劳动力占成本的最大部分,并且随着农场规模的增加呈线性增长,这是一个显著的瓶颈。整个扇贝农场价值对(1)市场价格和(2)上市时间的变化最为敏感。我们的分析提出了提高西北大西洋扇贝产量的四个策略:(1)机械化低密度净养殖;(2)优化净放养密度;(3)建立选址工具;(4)投资于消费者教育、终端市场和整个扇贝的生物毒素检测。该部门将需要监管、工业和研究合作相结合,以克服这些紧迫的挑战,但具有使双壳类水产养殖业多样化的盈利潜力。
{"title":"Developing a bioeconomic framework for scallop culture optimization and product development","authors":"Struan Coleman, D. Morse, W. C. Brayden, D. Brady","doi":"10.1080/13657305.2021.2000517","DOIUrl":"https://doi.org/10.1080/13657305.2021.2000517","url":null,"abstract":"Abstract Aquaculture is the fastest growing food production sector in the world and is quickly diversifying. In the Northwest Atlantic, interest in sea scallop (Placopecten magellanicus) (hereafter scallop) aquaculture has grown substantially. However, technical and economic challenges have hindered industry growth. We conducted bioeconomic simulations for various sized farms that targeted either live “whole” scallops or the shucked adductor muscle “meat.” The majority of farms selling whole scallops were profitable. However, all farms selling meats generated negative returns. Labor made up the greatest portion of costs in model simulations and increased linearly with farm size, representing a significant bottleneck. Whole scallop farm value was most sensitive to changes in (1) market price and (2) time to market. Our analysis suggests four strategies to increase farmed scallop production in the Northwest Atlantic: (1) mechanize low density net culture, (2) optimize net stocking densities, (3) build site selection tools, and (4) invest in consumer education, end-markets, and biotoxin testing for whole scallops. The sector will require a combination of regulatory, industry, and research cooperation to overcome these pressing challenges, but holds the potential to profitably diversify the bivalve aquaculture industry.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"25 - 49"},"PeriodicalIF":3.9,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43917873","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}
引用次数: 4
Determinants of urban consumer expenditure on aquatic products in Shanghai, China 中国上海城市消费者水产品消费支出的决定因素
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-11-13 DOI: 10.1080/13657305.2021.1996480
T. Meng, Chunxiao Wang, W. Florkowski, Zhengyong Yang
Abstract Consumption of aquatic products in China continues to grow and encourages the expansion of aquaculture farms. The examination of factors influencing expenditures on all aquatic products, freshwater fish, squid/octopus, and shellfish uses survey data collected from residents of Shanghai, China. The use of the Tobit modeling approach identified socio-demographic variables such as income, aquatic product safety perceptions, and preferences for quality as significant determinants of expenditures on aquatic product categories. Expenditures tend to increase with age, but the effect of education varies with regard to specific categories, suggesting distinct choices of educated consumers. Wives tend to spend substantially less on aquatic products than husbands. Knowledge of past sickness due to ingestion of aquatic products causes expenditures to drop in all categories, while quality certification, certified organic origin, and certified aquaculture products increase expenditure in selected categories. Monitoring consumer socio-demographic profiles and establishing transparent quality certification systems will benefit aquaculture farms and aquatic product marketers.
摘要中国水产品消费持续增长,并鼓励扩大水产养殖场。对影响所有水产品、淡水鱼、鱿鱼/章鱼和贝类支出的因素的调查使用了从中国上海居民那里收集的调查数据。Tobit建模方法的使用将收入、水产品安全认知和质量偏好等社会人口统计变量确定为水产品类别支出的重要决定因素。支出往往随着年龄的增长而增加,但教育的影响因具体类别而异,这表明受过教育的消费者有不同的选择。妻子在水产品上的花费往往比丈夫少得多。对过去因摄入水产品而患病的了解导致所有类别的支出都有所下降,而质量认证、认证有机原产地和认证水产养殖产品增加了选定类别的支出。监测消费者的社会人口状况并建立透明的质量认证系统将有利于水产养殖场和水产品营销人员。
{"title":"Determinants of urban consumer expenditure on aquatic products in Shanghai, China","authors":"T. Meng, Chunxiao Wang, W. Florkowski, Zhengyong Yang","doi":"10.1080/13657305.2021.1996480","DOIUrl":"https://doi.org/10.1080/13657305.2021.1996480","url":null,"abstract":"Abstract Consumption of aquatic products in China continues to grow and encourages the expansion of aquaculture farms. The examination of factors influencing expenditures on all aquatic products, freshwater fish, squid/octopus, and shellfish uses survey data collected from residents of Shanghai, China. The use of the Tobit modeling approach identified socio-demographic variables such as income, aquatic product safety perceptions, and preferences for quality as significant determinants of expenditures on aquatic product categories. Expenditures tend to increase with age, but the effect of education varies with regard to specific categories, suggesting distinct choices of educated consumers. Wives tend to spend substantially less on aquatic products than husbands. Knowledge of past sickness due to ingestion of aquatic products causes expenditures to drop in all categories, while quality certification, certified organic origin, and certified aquaculture products increase expenditure in selected categories. Monitoring consumer socio-demographic profiles and establishing transparent quality certification systems will benefit aquaculture farms and aquatic product marketers.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"1 - 24"},"PeriodicalIF":3.9,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48967563","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}
引用次数: 5
Assessing the economic impact of key operational factors on grow-out farms producing European sea bass under different scenarios of production 评估不同生产情景下欧洲黑鲈养殖场关键操作因素的经济影响
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-11-05 DOI: 10.1080/13657305.2021.1996481
J. L. Fernández Sánchez, Ignacio Llorente, B. Basurco, C. Aguilera
Abstract The aim of this work is to evaluate how changes in a set of different key operational factors (e.g., the unit sales price, the fingerling unit cost, the feed unit cost, and so on) would impact on the economic performance of a typical grow-out farm producing European sea bass in the Mediterranean under different scenarios of production related to the farm size (production volume) and production strategy (size of the produced fish). A what-if analysis using a deterministic static model to simulate the annual income statement of a typical grow-out farm was carried out. Data was obtained from ten European facilities located in the Mediterranean Sea. Our findings show the importance of the farm’s scale and the production of larger fish to obtain better economic results. Another important conclusion is that increase in fish growth and survival rates, innovating in feed and improving the breeding and health conditions, could compensate the reductions in the sea bass sales prices more efficiently than using other alternatives.
摘要这项工作的目的是评估一组不同关键运营因素(如单位销售价格、鱼种单位成本、饲料单位成本等)的变化如何影响地中海典型欧洲鲈鱼养殖场在与养殖场规模(产量)和生产策略(生产的鱼的大小)。使用确定性静态模型来模拟典型种植农场的年度收入报表,进行了假设分析。数据来自位于地中海的十个欧洲设施。我们的研究结果表明,为了获得更好的经济效益,农场规模和大型鱼类生产的重要性。另一个重要结论是,提高鱼类生长和存活率,创新饲料,改善养殖和健康条件,可以比使用其他替代品更有效地补偿鲈鱼销售价格的下降。
{"title":"Assessing the economic impact of key operational factors on grow-out farms producing European sea bass under different scenarios of production","authors":"J. L. Fernández Sánchez, Ignacio Llorente, B. Basurco, C. Aguilera","doi":"10.1080/13657305.2021.1996481","DOIUrl":"https://doi.org/10.1080/13657305.2021.1996481","url":null,"abstract":"Abstract The aim of this work is to evaluate how changes in a set of different key operational factors (e.g., the unit sales price, the fingerling unit cost, the feed unit cost, and so on) would impact on the economic performance of a typical grow-out farm producing European sea bass in the Mediterranean under different scenarios of production related to the farm size (production volume) and production strategy (size of the produced fish). A what-if analysis using a deterministic static model to simulate the annual income statement of a typical grow-out farm was carried out. Data was obtained from ten European facilities located in the Mediterranean Sea. Our findings show the importance of the farm’s scale and the production of larger fish to obtain better economic results. Another important conclusion is that increase in fish growth and survival rates, innovating in feed and improving the breeding and health conditions, could compensate the reductions in the sea bass sales prices more efficiently than using other alternatives.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"232 - 250"},"PeriodicalIF":3.9,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43569920","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}
引用次数: 8
Socioeconomic acceptance of aquaculture measured through structural equations modeling. Are there discrepancies between men and women in Spain? 通过结构方程模型测量水产养殖的社会经济接受度。西班牙男女之间存在差异吗?
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-10-19 DOI: 10.1080/13657305.2021.1988004
J. R. Chico, Mercedes Jiménez García, Antonio Rafael Peña Sánchez, José Antonio López Sánchez
Abstract At present, aquaculture is still subject to social debate. This paper analyzes its social acceptance compared to traditional fishing, mainly by applying the structural equations methodology. This technique has been widely used in recent times in social sciences but is minor in this field. We propose a model in which we break down its acceptance in two dimensions: Product and company. We also try to see if there are differences in the perception of men and women. To this end, we have carried out 803 personal surveys in several Spanish coastal provinces. Among the results, we can highlight the good level of acceptance of its products, positively influencing their companies' perception. We can recommend the development of synergies between the different agents involved to improve their acceptance. By gender, general acceptance is higher in men than in women; however, we have not detected significant differences in both groups' perceptions when analyzed using structural equations.
目前,水产养殖仍是社会争论的焦点。本文主要运用结构方程方法,对其与传统渔业的社会接受度进行了分析。这一技术近年来在社会科学领域得到了广泛的应用,但在这一领域的应用还比较少。我们提出了一个模型,在这个模型中,我们将其接受度分解为两个维度:产品和公司。我们也试着看看对男性和女性的看法是否存在差异。为此,我们在西班牙几个沿海省份进行了803次个人调查。在结果中,我们可以突出其产品的接受程度良好,积极影响其公司的感知。我们可以建议在涉及的不同药剂之间发展协同作用,以提高它们的接受度。从性别来看,男性的普遍接受度高于女性;然而,当使用结构方程进行分析时,我们没有发现两组人的看法有显著差异。
{"title":"Socioeconomic acceptance of aquaculture measured through structural equations modeling. Are there discrepancies between men and women in Spain?","authors":"J. R. Chico, Mercedes Jiménez García, Antonio Rafael Peña Sánchez, José Antonio López Sánchez","doi":"10.1080/13657305.2021.1988004","DOIUrl":"https://doi.org/10.1080/13657305.2021.1988004","url":null,"abstract":"Abstract At present, aquaculture is still subject to social debate. This paper analyzes its social acceptance compared to traditional fishing, mainly by applying the structural equations methodology. This technique has been widely used in recent times in social sciences but is minor in this field. We propose a model in which we break down its acceptance in two dimensions: Product and company. We also try to see if there are differences in the perception of men and women. To this end, we have carried out 803 personal surveys in several Spanish coastal provinces. Among the results, we can highlight the good level of acceptance of its products, positively influencing their companies' perception. We can recommend the development of synergies between the different agents involved to improve their acceptance. By gender, general acceptance is higher in men than in women; however, we have not detected significant differences in both groups' perceptions when analyzed using structural equations.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"439 - 461"},"PeriodicalIF":3.9,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45175688","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}
引用次数: 0
Pond aquaculture performance over time: A perspective of small-scale extensive pond farming in Bangladesh 随时间变化的池塘养殖表现:孟加拉国小规模广泛池塘养殖的前景
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-10-07 DOI: 10.1080/13657305.2021.1979122
Md. Takibur Rahman, R. Nielsen, M. Khan
Abstract The continuous growth of the aquaculture sector has motivated numerous empirical studies investigating farm productivity and technical performance over time. However, empirical works focusing on low-value species in developing countries are scarcer due to the lack of data. This paper investigates the sources of productivity changes over time using a meta-frontier Malmquist productivity index. The dataset contains 2,100 observations in an unbalanced panel data set for pangas and tilapia in Bangladesh. The results indicate that the overall productivity index and its components increase over time but at a decreasing rate. The technology change effect has the largest impact, followed by technical efficiency change. The scale effects are less than one, indicating that farms are scale inefficient. Nevertheless, the convergence toward the technology frontier seems to level off due to a declining ability to minimize the efficiency change and technological change gaps over time. The results also show a larger disparity among the farms in recent years, lowering the mean technical efficiency, with a few farms driving the frontier outward and the average farms lagging.
摘要水产养殖业的持续增长促使人们进行了大量的实证研究,调查农场生产力和技术性能。然而,由于缺乏数据,专注于发展中国家低价值物种的实证研究较少。本文使用元前沿Malmquist生产率指数研究了生产率随时间变化的来源。该数据集包含孟加拉国pangas和罗非鱼的不平衡面板数据集中的2100个观测结果。结果表明,总体生产力指数及其组成部分随着时间的推移而增加,但速度在下降。技术变革影响最大,其次是技术效率变革。规模效应小于1,表明农场的规模效率低下。尽管如此,由于随着时间的推移,最小化效率变化和技术变化差距的能力下降,向技术前沿的趋同似乎趋于平稳。结果还显示,近年来,农场之间的差距更大,降低了平均技术效率,少数农场向外推进,而平均农场落后。
{"title":"Pond aquaculture performance over time: A perspective of small-scale extensive pond farming in Bangladesh","authors":"Md. Takibur Rahman, R. Nielsen, M. Khan","doi":"10.1080/13657305.2021.1979122","DOIUrl":"https://doi.org/10.1080/13657305.2021.1979122","url":null,"abstract":"Abstract The continuous growth of the aquaculture sector has motivated numerous empirical studies investigating farm productivity and technical performance over time. However, empirical works focusing on low-value species in developing countries are scarcer due to the lack of data. This paper investigates the sources of productivity changes over time using a meta-frontier Malmquist productivity index. The dataset contains 2,100 observations in an unbalanced panel data set for pangas and tilapia in Bangladesh. The results indicate that the overall productivity index and its components increase over time but at a decreasing rate. The technology change effect has the largest impact, followed by technical efficiency change. The scale effects are less than one, indicating that farms are scale inefficient. Nevertheless, the convergence toward the technology frontier seems to level off due to a declining ability to minimize the efficiency change and technological change gaps over time. The results also show a larger disparity among the farms in recent years, lowering the mean technical efficiency, with a few farms driving the frontier outward and the average farms lagging.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"192 - 214"},"PeriodicalIF":3.9,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44677286","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}
引用次数: 12
Improving aquaculture productivity, efficiency and profitability in Bangladesh: Does land ownership matter? 提高孟加拉国水产养殖生产力、效率和盈利能力:土地所有权重要吗?
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-10-06 DOI: 10.1080/13657305.2021.1983069
Sandip Mitra, M. Khan, R. Nielsen, Md. Takibur Rahman
Abstract This study examines the impact of land tenure systems on aquaculture farm productivity, efficiency, and profitability based on information obtained from interviews with 517 randomly selected aquaculture farms across Bangladesh. Propensity score matching (PSM) is used to estimate productivity variation, and the stochastic frontier production function (SFPF) is employed to analyze efficiency variation depending on aquaculture farms’ land ownership. The results reveal that the productivity and efficiency of cash tenant farms are significantly higher than those of self-owned farms, but that the land-owner extracts most of the associated profits through the rent. Furthermore, the efficiency of self-owned farms decreases with farm size, while the opposite is true for cash tenant farms.
本研究基于对孟加拉国517个随机选择的水产养殖场的访谈信息,探讨了土地权制对水产养殖场生产力、效率和盈利能力的影响。采用倾向得分匹配(PSM)估计生产力变化,采用随机前沿生产函数(SFPF)分析不同养殖场土地所有权下的效率变化。结果表明,现金租赁农场的生产率和效率显著高于自营农场,但土地所有者通过租金提取了大部分相关利润。此外,自营农场的效率随着农场规模的增加而降低,而现金租赁农场的效率则相反。
{"title":"Improving aquaculture productivity, efficiency and profitability in Bangladesh: Does land ownership matter?","authors":"Sandip Mitra, M. Khan, R. Nielsen, Md. Takibur Rahman","doi":"10.1080/13657305.2021.1983069","DOIUrl":"https://doi.org/10.1080/13657305.2021.1983069","url":null,"abstract":"Abstract This study examines the impact of land tenure systems on aquaculture farm productivity, efficiency, and profitability based on information obtained from interviews with 517 randomly selected aquaculture farms across Bangladesh. Propensity score matching (PSM) is used to estimate productivity variation, and the stochastic frontier production function (SFPF) is employed to analyze efficiency variation depending on aquaculture farms’ land ownership. The results reveal that the productivity and efficiency of cash tenant farms are significantly higher than those of self-owned farms, but that the land-owner extracts most of the associated profits through the rent. Furthermore, the efficiency of self-owned farms decreases with farm size, while the opposite is true for cash tenant farms.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"215 - 231"},"PeriodicalIF":3.9,"publicationDate":"2021-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47265647","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}
引用次数: 15
List of reviewers for Aquaculture Economics & Management 2021 《水产养殖经济与管理》2021年度审稿人名单
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-10-02 DOI: 10.1080/13657305.2021.2020465
R. Botta, E. Brækkan, W. C. Brayden, Julia Bronnnmann, Carlos Ch avez, Uttam Deb, José M. Fernández-Polanco, T. Garlock, Dan Gordon, Venticia Hukom, Akhtaruzzaman Khan, D. Kidane, D. Knowler, Ignacio Llorente, Dave Love, M. Luna, Sandip Mitra, Oystein Myrland, Rune Nygård, T. Osmundsen, D. Petrolia, I. Pettersen, R. Pincinato, Andrew Ropicki, Leonardo Salazar, G. Shamshak, Geir Sogn-Grundvåg, Hans‐Martin Straume, Prasanna Surathkal, Dengjun Zhang
Robert Botta Eivind Brækkan W. Christian Brayden Julia Bronnnmann Carlos Ch avez Uttam Deb Jose Fernandez-Polanco Taryn Garlock Dan Gordon Venticia Hukom Akhtaruzzaman Khan Dejene Kidane Duncan Knowler Ignacio Llorente Dave Love Manuel Luna Sandip Mitra Oystein Myrland Rune Nygård Tonje Osmundsen Daniel Petrolia Ingrid Pettersen Ruth Pincinato Andrew Ropicki Leonardo Salazar Gina Shamshak Geir Sogn-Grundvag Hans-Martin Straume Prasanna Surathkal Dengjun Zhang
Robert Botta Eivind Brækkan W。Christian Brayden Julia Bronnnmann Carlos Ch avez Uttam Deb Jose Fernandez Polanco Taryn Garlock Dan Gordon Venticia Hukom Akhtaruzzaman Khan Dejene Kidane Duncan Knowler Ignacio Llorente Dave Love Manuel Luna Sandip Mitra Oystein Myrland Rune Nygård Tonje Osmundsen Daniel Petrolia Ingrid Pettersen Ruth Pincinato Andrew Ropicki Leonardo Salazar Gina Shamshak Geir Sogn Grundvag Hans MartinStraume Prasanna Surathkal Dengjun Zhang
{"title":"List of reviewers for Aquaculture Economics & Management 2021","authors":"R. Botta, E. Brækkan, W. C. Brayden, Julia Bronnnmann, Carlos Ch avez, Uttam Deb, José M. Fernández-Polanco, T. Garlock, Dan Gordon, Venticia Hukom, Akhtaruzzaman Khan, D. Kidane, D. Knowler, Ignacio Llorente, Dave Love, M. Luna, Sandip Mitra, Oystein Myrland, Rune Nygård, T. Osmundsen, D. Petrolia, I. Pettersen, R. Pincinato, Andrew Ropicki, Leonardo Salazar, G. Shamshak, Geir Sogn-Grundvåg, Hans‐Martin Straume, Prasanna Surathkal, Dengjun Zhang","doi":"10.1080/13657305.2021.2020465","DOIUrl":"https://doi.org/10.1080/13657305.2021.2020465","url":null,"abstract":"Robert Botta Eivind Brækkan W. Christian Brayden Julia Bronnnmann Carlos Ch avez Uttam Deb Jose Fernandez-Polanco Taryn Garlock Dan Gordon Venticia Hukom Akhtaruzzaman Khan Dejene Kidane Duncan Knowler Ignacio Llorente Dave Love Manuel Luna Sandip Mitra Oystein Myrland Rune Nygård Tonje Osmundsen Daniel Petrolia Ingrid Pettersen Ruth Pincinato Andrew Ropicki Leonardo Salazar Gina Shamshak Geir Sogn-Grundvag Hans-Martin Straume Prasanna Surathkal Dengjun Zhang","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"25 1","pages":"504 - 504"},"PeriodicalIF":3.9,"publicationDate":"2021-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43194280","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}
引用次数: 0
Capital structure and firm performance: Agency theory application to Mediterranean aquaculture firms 资本结构与企业绩效:代理理论在地中海水产养殖企业中的应用
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-17 DOI: 10.1080/13657305.2021.1976884
Isaac Ankamah-Yeboah, R. Nielsen, Ignacio Llorente
Abstract The study uses firm level panel data to determine performance-leverage relationships among Mediterranean aquaculture production firms in Croatia, Italy, Spain, France and Greece. A stochastic frontier production function is used to determine and define performance through firm level efficiency estimates. The multilevel internal instrument variable approach is employed to identify the causal relationships between performance and leverage. Our results show that technical efficiency has been increasing across all firms over the period 2008–2016. The agency-cost hypothesis holds such that leverage has an inverted U-shaped relationship with performance. This implies that leverage increases with efficiency, but efficiency begins to decrease at sufficiently higher levels of leverage. The reverse relationship confirms the franchise-value hypothesis, which states that firms with high efficiency will try to protect the value of their high income by holding more equity capital. Implications for the results are drawn for the Mediterranean region.
摘要本研究使用企业层面的面板数据来确定克罗地亚、意大利、西班牙、法国和希腊地中海水产养殖生产企业之间的绩效杠杆关系。随机前沿生产函数用于通过企业级效率估计来确定和定义绩效。采用多级内部工具变量法来确定绩效与杠杆之间的因果关系。我们的研究结果表明,在2008-2016年期间,所有公司的技术效率都在提高。代理成本假说认为杠杆与绩效呈倒U型关系。这意味着杠杆率随着效率的提高而增加,但在杠杆率足够高时,效率开始下降。这种反向关系证实了特许经营价值假说,该假说认为,效率高的公司将试图通过持有更多的股权资本来保护其高收入的价值。研究结果对地中海地区产生了影响。
{"title":"Capital structure and firm performance: Agency theory application to Mediterranean aquaculture firms","authors":"Isaac Ankamah-Yeboah, R. Nielsen, Ignacio Llorente","doi":"10.1080/13657305.2021.1976884","DOIUrl":"https://doi.org/10.1080/13657305.2021.1976884","url":null,"abstract":"Abstract The study uses firm level panel data to determine performance-leverage relationships among Mediterranean aquaculture production firms in Croatia, Italy, Spain, France and Greece. A stochastic frontier production function is used to determine and define performance through firm level efficiency estimates. The multilevel internal instrument variable approach is employed to identify the causal relationships between performance and leverage. Our results show that technical efficiency has been increasing across all firms over the period 2008–2016. The agency-cost hypothesis holds such that leverage has an inverted U-shaped relationship with performance. This implies that leverage increases with efficiency, but efficiency begins to decrease at sufficiently higher levels of leverage. The reverse relationship confirms the franchise-value hypothesis, which states that firms with high efficiency will try to protect the value of their high income by holding more equity capital. Implications for the results are drawn for the Mediterranean region.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"25 1","pages":"367 - 387"},"PeriodicalIF":3.9,"publicationDate":"2021-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43195012","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}
引用次数: 15
Profitability differences between public and private firms: The case of Norwegian salmon aquaculture 公共和私营企业盈利能力的差异:以挪威三文鱼养殖为例
IF 3.9 2区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2021-09-03 DOI: 10.1080/13657305.2021.1970856
M. Sikveland, Ragnar Tveterås, Dengjun Zhang
Abstract Capital requirements increase as aquaculture becomes more industrialized, with firms increasing their scale of production and capital intensity. Public listing at stock exchanges can provide improved access and cheaper financing for firms. Since the public listing is a fairly recent phenomenon and relatively few aquaculture firms have entered stock markets, it is useful to investigate the differences in profitability among listed and private aquaculture firms. Our econometric estimates based on a unique panel dataset of Norwegian salmon companies indicate that the sources of profitability, as measured by return on assets (ROA), are different among the two groups of companies. Listed companies are able to increase profitability through working capital optimization; however, they are more negatively affected by operating leverage and liquidity. This indicates that using liquidity as a risk reduction measure is costly in the industry. Although private firms have historically performed better on average in terms of ROA, the difference is not statistically different.
摘要随着水产养殖产业化程度的提高,企业的生产规模和资本强度也在增加,资本需求也在增加。在证券交易所公开上市可以为公司提供更好的融资渠道和更便宜的融资。由于公开上市是最近才出现的现象,而且进入股市的水产养殖公司相对较少,因此调查上市和私营水产养殖公司的盈利能力差异是有用的。我们基于挪威三文鱼公司独特的面板数据集进行的计量经济学估计表明,以资产回报率(ROA)衡量的盈利来源在两组公司之间有所不同。上市公司能够通过优化营运资金来提高盈利能力;然而,它们受到运营杠杆和流动性的负面影响更大。这表明,使用流动性作为降低风险的措施在行业中成本高昂。尽管私营企业在ROA方面的平均表现历来较好,但这一差异在统计上没有什么不同。
{"title":"Profitability differences between public and private firms: The case of Norwegian salmon aquaculture","authors":"M. Sikveland, Ragnar Tveterås, Dengjun Zhang","doi":"10.1080/13657305.2021.1970856","DOIUrl":"https://doi.org/10.1080/13657305.2021.1970856","url":null,"abstract":"Abstract Capital requirements increase as aquaculture becomes more industrialized, with firms increasing their scale of production and capital intensity. Public listing at stock exchanges can provide improved access and cheaper financing for firms. Since the public listing is a fairly recent phenomenon and relatively few aquaculture firms have entered stock markets, it is useful to investigate the differences in profitability among listed and private aquaculture firms. Our econometric estimates based on a unique panel dataset of Norwegian salmon companies indicate that the sources of profitability, as measured by return on assets (ROA), are different among the two groups of companies. Listed companies are able to increase profitability through working capital optimization; however, they are more negatively affected by operating leverage and liquidity. This indicates that using liquidity as a risk reduction measure is costly in the industry. Although private firms have historically performed better on average in terms of ROA, the difference is not statistically different.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"414 - 438"},"PeriodicalIF":3.9,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47761561","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}
引用次数: 15
期刊
Aquaculture Economics & Management
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1