Impact of cultured shrimp industry on wild shrimp fisheries: analysis of price determination mechanisms and market dynamics

Cultured shrimp production has been growing dramatically on the world market over the last 15 years and some of the farm‐raised species are now considered as price‐indicators on the main market places. One may, therefore, expect the price of theses cultured shrimp to have an impact on the price formation of other species and especially on wild shrimp with which they compete. In this paper, the authors address this question in the case of the wild shrimp Penaeus subtilis exploited by the French Guyana fishery (South America) and competing on the French market with the cultured Thai shrimp ‘Back Tiger’. A series of econometric tests issued from the co‐integration theory is performed between the price series of the two products. These tests indicate that the two series are co‐integrated and that the black tiger market acts as a market leader for the French Guyana shrimp product. The authors then discuss the reasons of the current predominance of farm‐raised shrimp on wild‐caught product (and in particular the French Guyana shrimp) and identify the constraints that the French market demand induces on both producers and importers. In the light of this analysis, a commercial strategy that would mitigate the impact of the Thai shrimp on the French Guyana product is suggested.     

Market and welfare implications of the reservation price strategy for forest harvest decisions

Previous studies have reported significant gains from adopting the adaptive harvest strategy under conditions of timber price uncertainty. For the final harvest decision in even-aged stand management, the adaptive strategy typically means that a stand is harvested when the timber price is sufficiently high, whereas low prices are avoided by postponing the harvest. Such a harvest behavior may have significant impacts on the future price process, which in turn affects the landowner's profits. Moreover, it would certainly affect the timber-based industry and consumers. This paper assesses these impacts in a hypothetical timber market, using the Faustmann rule (FR) as a benchmark. The results show that changing from the FR to the reservation price strategy (RPS) reduces the supply of timber, thereby pushes up the price level. The RPS significantly reduces the short-run random variation of timber price. In the long run, both the mean and the variance of the timber price tend to stabilize. Depending on the anticipated price variation underlying the RPS, the expected timber price may be close to, or much higher than, the benchmark level, and the variance of price can be very large or very small. The welfare effect of the RPS is small if the anticipated variance of timber price used to optimize the RPS is small. If the anticipated variance of price is large, then the RSP leads to significant increase in the landowners’ profits and at the same time reduces the consumer surplus by a much larger amount.     

产业融合视角下陕西旅游遗产文化业发展模式研究

产业融合发展是当前世界产业发展的重要趋势之一。陕西作为文化遗产资源大省和旅游大省,文化遗产业与旅游产业的融合并形成新业态具有天性性和必然性。研究认为旅游遗产文化业的融合机制有产业的高度关联性、消费需求与技术进步、竞争和政策制度,通过渗透型、延伸型、重组型三种融合模式,立足于陕西实际,采取理顺管理体制、文化遗产活化、延长产业链、提升遗产资源的吸引力、打造陕西文化遗产创意产业园区等路径来促进旅游遗产文化业发展,实现陕西旅游产业结构优化升级。     

论水产科技产业的组织形式

本文分析了当前水产科研院所组建的科技产业的某些弊端,认为“科、工、贸一体化”将有可能成为水产科技产业的重要组织形式,同时提出了实施“科、工、贸一体化”的步骤、应注意的问题及发展趋势     

山东省产业结构演进与经济增长关系研究

以1996~2006年统计数据为基础,利用偏离—份额分析方法,研究了山东3个经济区产业结构变动与区域经济发展之间的关系,研究结果表明,产业结构的演变趋势符合产业结构演变的一般规律;产业结构演变的空间差异比较明显;产业结构演进对经济增长的影响分为产业结构偏离为负值、竞争力偏离份额为正值,产业结构偏离为正值、竞争力偏离份额为正值2种类型;产业结构变迁对山东各区域经济发展影响较大;运用高新技术改造传统产业,加快传统产业优化升级,大力发展第三产业,以市场需求为导向,培植战略优势产业,应成为今后山东省产业结构调整的战略选择。     

我国水产种业体系建设政策的供给及演化

水产种业是促进水产养殖业持续稳定发展的根本,加强水产种业体系建设一直以来是我国渔业政策的重要内容。论文对建国以来我国水产种业体系建设发展历程和相关政策进行了系统的梳理和总结,把水产种业体系建设政策的供给类型划分为强化基础设施类、强化监督管理类、强化产业扶持类、强化科技支撑类、强化资源保护式等五大类型。水产种业体系建设是一个层次推进、逐步完善的过程,论文最后归纳了我国水产种业的政策演化的主要特点：从外延式扩张向内涵式提升演进、从总体制度规划向内在体制机制建设演进、从开发为主向开发与保护并重的演进、从由政府主导向由企业主导演进。     

兰州市产业结构与土地利用结构的相关性研究

土地作为产业发展的载体,其利用结构直接影响着产业的发展和演化;而产业作为土地价值的体现形式,它的结构调整也同样影响着土地利用的变化;以河谷型城市兰州市为研究对象,在分析产业结构与土地利用结构的基础上,采用相关系数指标和回归分析法,探讨了产业结构与土地利用结构之间的相互关系及其变化规律.     

Strategic Behavior and Consolidation in the Agricultural Biotechnology Industry

We develop a model explaining the consolidation patterns in the agricultural biotechnology industry. Among different consolidation and cooperation mechanisms, we consider collaborative and licensing agreements, joint ventures, acquisitions, and exchanges of ownership and spin-offs. The key results derive from the benefits of coordinated actions, distinction between transferable and nontransferable payoffs, the substitutability, complementarity, and the importance of the managers' noncontractible investments, and access and expansion of markets. Results from the model are used to examine the cooperation and consolidation activities for four major players in the agricultural biotechnology industry, DuPont , Dow Chemical , Monsanto , and Novartis .     

供给侧结构性改革背景下制造业成本管理研究

在我国改革开放的进程中,制造业一直是国民经济的主体。近年来,市场竞争愈发激烈,制造业在迎接新的发展机遇的同时也面临着巨大的挑战,其成本管理存在一定的不足。分析当前我国制造业成本管理存在的问题,探讨供给侧结构性改革对企业成本管理带来的积极影响,提出了依托电子商务提升制造业成本管理成效的对策措施。     

近年世界铂族金属供需及勘查开发的新动向

近年来,随着世界经济的增长,工业对铂族金属的需求不断增加,尤其是汽车催化器装置对铂族金属需求稳步增长,促进了铂价高涨、钯价回升,铂族金属已成为国外矿产勘查的一个新热点,勘查开发投资不断增加,在南非、美国、加拿大、俄罗斯等国相继发现了一些重要铂族金属矿床。     

关于国土资源产业经济学科发展的思考

国土资源产业经济学是研究国土资源产业及其发展规律的学科 ,其根本目的在于研究并促进在产业经济中如何实现国土资源的优化配置。文章就国土资源产业经济学科的研究对象、内容与方法、理论体系、学科发展的现状与存在的主要问题进行了阐述 ,提出了加快国土资源产业经济学科发展的六项建议     

低碳经济背景下北京市林业产业结构及竞争力研究?

运用偏离-份额分析法对北京市2002~2011年林业产业结构与区域竞争力进行实证分析的结果表明：相对于全国而言,北京市林业总产值增速缓慢,2002~2006年的实际增量比全国的增长率低134.85％,2007~2011年间这一差距增长到12.38％,总值呈现增长态势;北京市林业第一产业出现下滑趋势,第二产业具有结构性优势但不具区域竞争力优势;北京市林业发展的主要推动力是以林业旅游与休闲、林业生态服务等为主的林业第三产业。可见,在林业低碳经济的背景下,北京市需要稳固并提升林业第一产业的基础性地位、提升第二产业的深加工能力和资源综合利用率、遵照低碳发展理念,继续加强第三产业的优势带头作用。     

海岛产业发展及布局的国际案例及借鉴——以长岛县为例

论文从分析长岛县海岛产业的发展现状入手。然后,分析了全球海洋产业的发展趋势-"四高"倾向以及产业结构调整、港口经济迅速发展等。最后,通过分析国内外海岛产业发展的成功经验,提出了长岛县开发的几点有益借鉴,包括:1)渔业要向品牌、高效、生态方向发展,完善渔业法规条例以及制定发展计划;2)发展特色工业,重点发展海洋水产加工业;3)实施旅游精品战略以及改善交通条件和规划旅游地产开发;4)政府要重视海岛开发前后角色转变,制定科学规划以及平衡开发与保护。     

21世纪福建林业产业发展趋势与结构调整

结合市场需求的变化 ,分析了 2 1世纪福建林业产业发展的基本趋势 ,并在此基础上提出了 2 1世纪福建林业产业结构调整的方向与思路     

Cross country maize market linkages in Africa: integration and price transmission across local and global markets

In order to study short‐run price shock propagation, we model twenty seven Sub‐Saharan Africa (SSA) domestic maize markets within a Global Vector Autoregression framework. The main purpose is to fully embed multilateral trade flows as a way to better structure local price transmission dynamics and interdependencies, and get a more comprehensive picture of food price shocks propagation. We found significant between‐country market contagion and prompt regional price shock propagation when trade connection exists. Yet, the integration of SSA domestic maize markets within the continent and with global markets remains generally weak. Furthermore, under regular market conditions, most local price series appear to be more responsive to regional neighbors than to global shocks.     

我国森林产业生产与布局的变化及经济意义

在对统计资料和经济环境背景资料分析的基础上,将我国森林工业发展分为两个时期,并分析不同时期森林工业生产与布局方面的主要特征以及产生变化的主要原因,指出森林工业生产正向结构的高度化和多元化发展,而布局呈现向南部及东部沿海人工林区转移的趋势。这种趋势是对技术经济条件作出的积极反应,由此也使天然林作为经济资源的优势逐步下降。     

地勘行业产权制度改革和劳动关系调整的途径

文章指出 ,衡量国有企业改制是否完成要看其是否实现了多元产权结构 ,是否调整了劳动关系 ,是否建立了现代企业制度和形成了有效的法人治理结构。文章结合云南省地矿局的实际 ,就地勘行业产权制度改革和劳动关系调整进行了论述 ,指出地勘行业产权制度改革的三条途径 :即分离式改制、分离重组式改制、采取多元投资方式组建新企业。并提出消灭传统意义上的国有企业。以调整劳动关系 ,改变职工依附地勘单位 ,地勘单位对职工负无限责任的现状。     

Deregulation reforms,resource reallocation and aggregate productivity growth in the Australian dairy industry

Deregulation reforms in the Australian dairy industry had long‐lasting repercussions for Australian agriculture and the wider Australian economy. Using farm‐level data from 1979 to 2013, we investigate the effect of these reforms on productivity in the Australian dairy industry which arose from correcting resource misallocation between farms and across segregated state milk markets. Our results demonstrate that after the dairy reforms in 2000, relative market share shifted from less productive farms to more productive ones, and between farms using different production systems – generating additional productivity gains for the farm sector, but imposing some costs on downstream manufacturers by strengthening the seasonality of milk supply. Lessons from the Australian experience provide timely guidance for those countries exploring deregulation now or in the future to improve the industry‐level agricultural productivity growth through facilitating resource reallocation from less efficient to more efficient farms.     

黑龙江省肇东市以牧为主的生态产业及其激励机制

肇东示范区创立的“以牧为主的生态产业”是一种循环农业模式,已把经济发展活动组织成为“自然资源—产品和用品—再生资源”的闭环式流程,其中奶牛经济已成为主体经济、富民经济和最具活力经济。肇东市生态产业形成的激励机制包括创新组织领导机制、创新工作推进机制、创新配套服务机制。