Effectiveness of harvest strategies in achieving multiple management objectives in a multispecies fishery

Fisheries management is characterised by multiple objectives, some of which may be complementary, while others may require trade‐offs between outcomes. Balancing these objectives is made more complex in the case of multispecies and multigear fisheries. In this paper, we develop a bioeconomic model that captures the key elements of such a fishery to test a range of potential harvest strategies to provide insights into how economic target reference points could lead to both desirable and undesirable management outcomes (e.g. discards). The model is developed as a long‐run optimisation model to identify target reference points to achieve multispecies maximum economic yield, and a dynamic recursive optimisation model, which includes more realistic representation of fishers’ behaviour, such as discards and trading of under‐caught species quotas. The potential economic, social and ecological impacts are evaluated using data envelopment analysis (DEA). The results suggest that the use of proxy target reference points can result in short‐term economic benefits at the cost of slower stock recovery and higher discarding. Limiting the number of species subject to quota controls may also prove beneficial in multispecies fisheries, while ensuring quota markets are efficient is likely to produce benefits irrespective of the harvest strategy adopted.     

论我国大气污染生态补偿法律机制的完善

大气污染生态补偿法律机制对于促进区域大气污染联合治理、实现大气污染治理法律正义、创新与完善生态补偿法律机制等具有重要意义。我国现有法律法规就大气污染生态补偿进行了原则性规定,特别是山东、陕西、湖北等地方性法规更是对大气污染生态补偿进行了探索性规范,为大气污染生态补偿法律机制完善提供了有益经验。但从总体来看,我国大气污染生态补偿法律机制尚存在缺乏专门法律支撑、生态补偿主体过窄、补偿方式单一、补偿标准不合理、法律责任不完善等问题。为促进生态文明战略与强化大气污染生态补偿的法律保障,我国应以科学理念为指导,采取有效措施推进大气污染生态补偿法律机制完善。     

产业链的合作机制选择与低碳产品定价及碳减排策略

生产链上下游企业选择合适的合作机制对低碳产品定价及碳减排有重要影响。通过构建博弈模型分析三种不同合作机制下的低碳产品定价及碳减排问题:第一种合作机制即制造商与零售商进行合作,当两条生产链都选择这种合作机制时,能带来较高的碳减排率和较低的零售价格,这对制造商、零售商、消费者和环境都是有利的。第二种合作机制即两条生产链的制造商之间、零售商之间分别合作,这会带来较低的碳减排率和较高的零售价格,对两个制造商有利,而对零售商和消费者不利。分析前两种合作机制的利与弊提出第三种合作机制,即零售商和制造商共享利润下的有利于碳减排的策略。最后,结合案例讨论和数值分析的研究结果表明:当制造商和零售商收入共享比在一定范围内时,第三种合作机制可以给制造商和零售商带来更高的利润。由此为企业选择最佳的合作机制及合理的碳减排策略提供了理论指导。     

Corporate brand strategy: Drivers and outcomes of hotel industry’s brand orientation

The MNC resellers are vastly competitive and capital-intensive. Based on the corporate brand orientation, the objective is to investigate how the individual dimensions of hotel industry’s brand orientation can improve a corporate experience and subsequently create superior hotel performance and retailer preferences. A model of the integration of the hotel industry’s brand orientation was tested in a survey conducted among MNC resellers from hospitality industry. Structural equation modelling was applied to gain insight into the various influences and relationships. The research makes two main contributions. It makes a theoretical contribution by classifying the integration of the hotel industry’s brand orientation for hospitality industry and from this extrapolate key suggestions for further study. The continuous evolution and economic influence of the hospitality industry require the application of innovative marketing practices.     

Marketing strategy and the hunt for era V

ABSTRACT

This paper is a response to a recent special issue of the Journal of Marketing Management in which Shelby Hunt celebrates the achievements of 40 years of marketing strategy. In noting the passing of the ‘old guard’, Hunt calls on a new generation of scholars to meet the challenges confronting marketing and to develop new theories and frameworks to advance Marketing Strategy into Era V. We take for our inspiration Hunt’s own words, specifically his reference to the ‘promising’ and ‘problematic’ that he uses to characterise the current and latent state of marketing strategy. To build our vision and map out our agenda we offer an alternative reading of this discipline through the idea of Marketing Strategy as Discourse (MSAD). Within the paper, we outline the role that discourse can perform as a resource to reconfigure our appreciation of marketing strategy.     

Fear appeals and coping appeals for health product promotion: Impulsive purchasing or psychological distancing?

The prevalence of online health communities (OHCs) motivates health product companies to manipulate persuasion-based marketing strategies, including fear appeals and coping appeals, to promote health products. However, whether such a practice is effective remains unclear. Respondents may either impulsively purchase the recommended health products or simply distance themselves psychologically from the information. Building on protection motivation theory (PMT), this study uncovers the mechanisms behind these two coping responses to persuasive messages, namely, the impulsive purchasing and psychological distancing of OHC users. Correspondingly, we evaluated 366 valid questionnaires, and the results reveal that (1) when encountering fear appeals, perceived health threat can evoke cyberchondria, leading to psychological distancing; and (2) when encountering coping appeals, perceived response efficacy leads to product affection, fostering impulsive purchasing. This study provides new insights into the effects of persuasive messages for health product promotion in social commerce. Marketers should design appropriate persuasive messages to foster impulsive purchasing by generating individuals’ product affection and avoiding cyberchondria.     

Net-zero emission targets and the role of managerial environmental awareness,customer pressure,and regulatory control toward environmental performance

To avoid the worst effects of global warming, countries agreed to limit warming below 2.0°C and ideally to 1.5°C preindustrial level. This requires countries to drop half of their greenhouse gas emission by 2030 and reach net-zero emission by 2050. In this regard, current study explores the role of green production as a mediator in the impact of managerial environmental awareness, customer pressure, and regulatory control on environmental performance. The data collected from 381 managers was analyzed using structural equation modeling (SEM) technique. Results indicate that customer pressure, regulatory control, and managerial environmental awareness play a pivotal role toward green production, whereas only managerial environmental awareness among them directly influences environmental performance. Green production fully mediates the relationship from customer pressure and regulatory control to environmental performance. However, it partially mediates the relation between managerial environmental awareness and environmental performance. Similarly, the importance of green production for environmental performance is highlighted.     

When less is more? The contingent effect of product supply limitation in the release of new electronic products

In the market of consumer electronics, firms often limit their product supply to create a scarcity effect to entice consumers to buy their product. However, the outcome of such a strategy is not always desirable. In this study, we propose the product configuration level as a contingent variable that works with the supply level to affect the outcome of a supply limitation strategy. With a vignette-based experiment, we find that for a product with a superior configuration, consumers' purchase intention is boosted only if the supply is very limited. For a product with an inferior configuration, however, the supply limitation strategy does not work at any supply level. Therefore, the supply limitation strategy works only for a superior product configuration and at a fine-tuned supply level.     

发展竞争、土地供应策略互动与城市用地增长——基于252个城市数据的空间面板模型实证检验

研究目的：针对发展竞争驱动下产生的地方政府土地供应策略，从空间维度上展开进一步分析，解析城市土地供应行为中存在着怎样的空间互动关系。研究方法：运用2007—2017年的城市层面面板数据和空间计量模型进行了实证检验。研究结果：（1）服务于发展竞争的土地供应策略，对本城市和周边城市的用地增长都会产生影响；（2）工业用地价格波动与商住用地价格波动都会产生空间溢出效应，且前者产生的空间溢出效应更强；（3）工业用地价格存在“竞次式”的城市间互动，其价格增长会显著抑制本城市的用地扩张，但会促进周边城市的用地增长；（4）商住用地价格提升会促进本城市用地扩张，并抑制周边城市用地扩张；（5）作为因变量的城市用地规模，在同省/异省的城市间分别存在着“彼此促进”和“此消彼长”两种互动关系。研究结论：区域协调、用地增长两个方面要紧密结合，针对工业用地价格“竞次式”竞争和商住用地价格高价出让，从城市间关系协调入手进行调控政策的设计与创新。     

基于预约策略的医院CT设备使用优化研究

预约检查是对有限的医疗检查资源的一种调度优化。以攀枝花市A医院CT检查为例,通过实地调研,统计CT设备的服务能力,门诊患者,住院患者和急诊患者的平均到达率,接受患者的单位检查收益和拒绝患者的单位检查损失。通过调整预约策略使有限的资源设备产生更多的收益,并运用仿真模拟不同预约策略下的收益效果。研究结果对医院重要设备的预约使用提供了一定参考价值。