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A two-stage stochastic programming model for assortment optimisation 分类优化的两阶段随机规划模型
IF 0.7 Q4 MANAGEMENT Pub Date : 2019-07-01 DOI: 10.1504/IJAMS.2019.10022352
Khaled N. Alqahtani, N. I. Shaikh
This paper presents a two-stage stochastic programming model for retail assortment optimisation. Decisions related to what products to stock and in what quantity are taken in the first stage while decisions related to what products to use to satisfy the primary versus the secondary demand are taken in the second stage. Such a model is very useful for online retailers and catalogue merchants who witness a gap between an order arrival and fulfilment. A case study illustrating the modelling approach and its benefits as compared to other existing assortment optimisation techniques is also presented.
提出了一种零售分类优化的两阶段随机规划模型。在第一阶段决定库存什么产品和数量,而在第二阶段决定使用什么产品来满足主要需求和次要需求。这种模式对在线零售商和目录商非常有用,因为他们见证了订单到达和履行之间的差距。还提出了一个案例研究,说明建模方法及其与其他现有分类优化技术相比的好处。
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引用次数: 0
Effect of decision-making style on travel intention of religious tourism (Qom as religious tourism destination in Iran) 决策方式对宗教旅游意愿的影响(库姆为伊朗宗教旅游目的地)
IF 0.7 Q4 MANAGEMENT Pub Date : 2019-02-06 DOI: 10.1504/IJAMS.2019.10018988
Sayed Ehsan Hoseinipor, H. Dolatabadi, A. Kazemi
Marketing experts are interested in travel intention since it enables them to analyse tourists' consumer behaviour. In order to understand the behaviour of religious tourists, this study concentrates on the effect of decision-making styles on travel intention of tourists travelling to Qom (a religious city in Iran). Data were collected through a field survey among 350 people who visited Qom City and data was analysed using partial least square (PLS) modelling. The results show that brand-conscious consumer style, recreational and hedonistic consumer style and confused-by-overchoice consumer style are the main controllers of religious tourists' travel intention. Also, perfectionist conscious consumer style, novelty and fashion-conscious consumer style, price-conscious consumer style, habitual and brand-loyal consumer style, impulsive and careless consumer styles did not affect travel intention of religious tourists. This is the first study that investigates decision-making styles of religious tourists.
市场营销专家对旅游意向很感兴趣,因为这使他们能够分析游客的消费行为。为了了解宗教游客的行为,本研究主要研究决策方式对前往库姆(伊朗宗教城市)旅游的游客的旅游意愿的影响。通过对访问库姆市的350人进行实地调查收集数据,并使用偏最小二乘(PLS)模型对数据进行分析。研究结果表明,品牌意识型消费风格、休闲享乐型消费风格和选择过多型消费风格是宗教游客旅游意愿的主要控制因素。完美主义意识型消费风格、新奇时尚意识型消费风格、价格意识型消费风格、习惯品牌忠诚型消费风格、冲动粗心型消费风格对宗教游客的旅游意愿没有影响。这是第一个调查宗教游客决策风格的研究。
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引用次数: 2
Determinants of customer satisfaction: empirical study in hotels 顾客满意的决定因素:酒店的实证研究
IF 0.7 Q4 MANAGEMENT Pub Date : 2019-02-06 DOI: 10.1504/IJAMS.2019.10018985
M. Machado
This study has three specific objectives, formulated based on the expectation confirmation paradigm: to analyse the hotel features, the performance evaluation tools used, and the price practiced by the hotels all as determinants of customer satisfaction. Data collection began with the conduction of a survey to the financial managers of 4 and 5-star hotels, located in Portugal, in order to collect information on the performance evaluation tools used and on certain hotel features. We obtained 241 fully completed inquiries. To meet the objectives proposed, two additional types of data were also collected: the degree of customer satisfaction, for the hotels responding to the initial survey (for this we used two different online platforms); the price charged by the responding hotels, using the online platform Booking.com. The results obtained lead us to the following main contributions: the validation of the expectation confirmation paradigm, namely by demonstrating that hotel features can be considered as factors affecting customer expectations, and that the performance evaluation tools can be considered as factors affecting the actual experience; the demonstration that there is an association between the price charged by the hotels and their customers' satisfaction, but in a way contrary to the theoretical assumptions of the expectation confirmation paradigm.
本研究基于期望确认范式制定了三个具体目标:分析酒店特征、使用的绩效评估工具和酒店实行的价格,这些都是客户满意度的决定因素。数据收集始于对位于葡萄牙的四星级和五星级酒店的财务经理进行调查,以收集有关所使用的绩效评估工具和某些酒店特征的信息。我们获得了241份完整完成的询盘。为了实现提出的目标,我们还收集了两种额外类型的数据:对最初调查做出回应的酒店的客户满意度(为此我们使用了两个不同的在线平台);通过在线平台Booking.com查询相应酒店收取的价格。得到的结果导致我们做出以下主要贡献:期望确认范式的验证,即通过证明酒店功能可以被认为是影响顾客期望的因素,绩效评估工具可以被认为是影响实际体验的因素;证明酒店收取的价格与顾客满意度之间存在关联,但在某种程度上与期望确认范式的理论假设相反。
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引用次数: 1
The impact of perceived organisational support and organisational citizenship behaviour on turnover intention: an empirical investigation 感知组织支持和组织公民行为对离职意向的影响:一项实证调查
IF 0.7 Q4 MANAGEMENT Pub Date : 2019-02-06 DOI: 10.1504/IJAMS.2019.10018984
A. Rezaei
This study examines the relationships between perceived organisational support (POS), organisational citizenship behaviour (OCB) and turnover intentions; and the mediating role of OCB on perceived organisational support and turnover intentions. The population under study was all experts from the National Iranian Drilling Company as an empirical case study. Finally, 140 questionnaires were analysed based on structural equation modelling using SMART PLS software. Results showed that there is a significant positive relationship between perceived organisational support and organisational citizenship behaviour. Also, there is a negative significant relationship between perceived organisational support and turnover intention. The meditating role of OCB is supported in relation to the perceived organisational support and turnover intention.
本研究探讨了组织支持感(POS)、组织公民行为(OCB)与离职意向之间的关系;组织公民行为对组织支持感和离职意向的中介作用。作为实证案例研究,研究对象均为伊朗国家钻井公司的专家。最后,利用SMART PLS软件对140份问卷进行结构方程建模分析。结果显示,组织支持感与组织公民行为之间存在显著的正相关关系。组织支持感与离职倾向之间存在显著负相关。组织公民行为在组织支持感知和离职倾向之间具有中介作用。
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引用次数: 0
A GIS-based methodology for solving the capacitated vehicle routing problem with time windows: a real-life scenario 一种基于gis的带时间窗车辆路径问题求解方法:一个真实场景
IF 0.7 Q4 MANAGEMENT Pub Date : 2019-02-06 DOI: 10.1504/IJAMS.2019.10018995
M. Savsar, Aaya Aboelfotoh, Dalal Embaireeg
Most companies, which need to distribute their production daily, solely rely on human judgment in scheduling customer orders by assigning a delivery vehicle and selecting the routes for those vehicles. With increasing demand, this approach quickly becomes error prone. In this study, we present analysis of a distribution system and propose a systematic approach to improve distribution of tasks using geographic information system (GIS). Specifically, ArcMap's network analyst tool is used in order to minimise total transportation costs and ensure workload balance. We incorporate dynamic traffic conditions, time windows, vehicle capacity and driver working hours into our model to present more realistic results. We compare the total transportation costs due to manual assignments with the costs obtained using our approach, in addition to proving the tool's validity for problems of a larger scale. Analysis is applied to a specific food catering company in order to illustrate the procedure in detail.
大多数需要每天分配产品的公司,在安排客户订单时完全依靠人工判断,即分配配送车辆并为这些车辆选择路线。随着需求的增加,这种方法很快变得容易出错。在本研究中,我们对分配系统进行了分析,并提出了一种系统的方法来改善使用地理信息系统(GIS)的任务分配。具体来说,使用ArcMap的网络分析工具是为了最大限度地降低总运输成本并确保工作量平衡。我们将动态交通状况、时间窗、车辆容量和驾驶员工作时间纳入模型,以获得更真实的结果。除了证明该工具对更大规模问题的有效性之外,我们还比较了由于人工分配而产生的总运输成本与使用我们的方法获得的成本。分析应用到一个具体的食品餐饮公司,以详细说明程序。
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引用次数: 2
Imperfect production system with rework of regular production with sales returns by customers and buffer stock 生产系统不完善,常规生产返工,客户退货和缓冲库存
IF 0.7 Q4 MANAGEMENT Pub Date : 2019-02-06 DOI: 10.1504/IJAMS.2019.10018987
C. K. Sivashankari
Jamal et al. (2004) proposed a model, which dealt with the optimum batch quantity in a single-stage system in which rework is done by addressing two different operational policies to minimise the total system cost but their models do not considered sales return by customers. A portion of defective items produced are not successfully screened out internally during the production process and passed on to customers, thereby causing defect sales returns and reverse logistic from customers back to the manufacturer. In this direction, this paper develops an economic production quantity inventory model with sales return by customers for determining the economic production quantity for a single product, which is manufactured in a single-stage manufacturing system that generates imperfect quality products and all these defective products are reworked in the same cycle. Mathematical model is developed and the optimal production lot size which minimises the total cost is derived.
Jamal等人(2004)提出了一个模型,该模型处理单阶段系统中的最佳批数量,其中返工通过解决两种不同的操作策略来最小化系统总成本,但他们的模型不考虑客户的销售回报。在生产过程中,生产出的部分次品在内部没有被成功筛选出来并传递给客户,从而造成了次品销售退货和客户向制造商的逆向物流。在此方向上,本文建立了考虑客户销售回报的经济生产数量库存模型,用于确定在单阶段制造系统中生产的单个产品的经济生产数量,该系统生产的产品质量不完美,并且所有这些不完美产品在同一周期内进行返工。建立数学模型,推导出总成本最小的最优生产批量。
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引用次数: 1
A new method for context factors analysis in international development project planning 国际开发项目规划中环境因素分析的新方法
IF 0.7 Q4 MANAGEMENT Pub Date : 2018-10-04 DOI: 10.1504/IJAMS.2018.10015877
A. Talantsev, Aron Larsson, D. Sundgren
The long-term success or failure of a development project is largely shaped by the external context. Therefore, assessment of factors influencing fulfilment of long-term development outcomes is vital for better project planning. In recent decades, the logical framework (logframe) has de facto become a standard tool for planning and managing development interventions. While the logframe requires identification of assumptions and risks regarding the external context, it does not suggest ways to analyse them in a conventional risk assessment manner. Also, the log-frame has been criticised for ignoring uncertainty in project environment along with neglecting external opportunities. Therefore, in this paper we suggest a method for project context analysis that extends the log-frame with scenarios analysis and address aforementioned shortcomings. We implement and demonstrate the application of the method on an international aid development project, discuss the method's potential use-cases, specific limitations and future development.
开发项目的长期成功或失败在很大程度上是由外部环境决定的。因此,评估影响实现长期发展成果的因素对于更好地规划项目至关重要。近几十年来,逻辑框架(logframe)实际上已经成为规划和管理发展干预的标准工具。虽然对数框架要求确定关于外部环境的假设和风险,但它并没有提出以传统风险评估方式分析它们的方法。此外,由于忽略了项目环境中的不确定性以及忽略了外部机会,对数框架也受到了批评。因此,在本文中,我们提出了一种项目上下文分析方法,该方法通过场景分析扩展了日志框架,并解决了上述缺点。我们在一个国际援助发展项目中实施并演示了该方法的应用,讨论了该方法的潜在用例、具体限制和未来发展。
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引用次数: 0
Development of dry ports in Europe 欧洲陆港的发展
IF 0.7 Q4 MANAGEMENT Pub Date : 2018-10-04 DOI: 10.1504/IJAMS.2018.10010622
J. Oláh, S. Nestler, Thomas Nobel, Mónika Harangi-Rákos, J. Popp
Many German dry ports have already been successfully established and positioned in the past; however, several questions may arise. Can they keep pace with latest standards? Can they maintain their strong capabilities or are there locations in Europe, of whose achievements German dry ports can still 'learn'? What impulses come in turn from the German dry ports? The aim of this study was to illustrate the international logistics landscape and furthermore to give recommendations for the successful development of macro logistics concepts in Europe. The European ranking of 2015 is based in terms of its methodology on the scientific assessments of the authors. Therefore, it is evident that the results for example with use of a different weighting of the 40 evaluation criteria can certainly lead to different ranking results. In comparison to the first European Ranking 2010, there is no change among the TOP 3 in the ranking 2015.
许多德国陆港在过去已经成功建立和定位;然而,可能会出现几个问题。他们能跟上最新的标准吗?他们能保持强大的能力吗?还是在欧洲有一些地方,德国陆港仍然可以“学习”这些地方的成就?德国陆港又带来了什么样的动力?本研究旨在说明国际物流格局,并为欧洲宏观物流概念的成功发展提出建议。2015年的欧洲排名是基于作者的科学评估方法。因此,很明显,例如使用40个评估标准的不同权重的结果肯定会导致不同的排名结果。与2010年的第一次欧洲排名相比,2015年的前三名没有变化。
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引用次数: 14
Air cargo simultaneous weight and volume capacity planning with revenue management approach 航空货运同时重量和容量规划与收益管理方法
IF 0.7 Q4 MANAGEMENT Pub Date : 2018-10-04 DOI: 10.1504/IJAMS.2018.10015874
Mohammad Vardi, A. Ghorbanian
Revenue management (RM) is a subfield of operations research with the aim to maximise the revenues acquired by selling perishable products/services. Due to the substantial growth in air cargo industry over the past few years, sophisticated techniques are needed to maximise revenue. In this paper, airline cargo capacity allocation problem in two cases, including cancellation possibility and impossibility have been investigated. Two capacity dimensions of the problem, volume and weight, is complicated the decision making about request acceptance policy. For the formulation of two problems, dynamic programming technique has been used. Since dynamic programming suffers from much memory consumption for large size problems, three heuristics including deterministic integer linear programming (DILP), bid price (BP) and dynamic programming decomposition (DPD) has been proposed for problems solving. Results of simulation showed that BP and DILP have the better performance comparing to other approaches. In addition, comparison of two problem's optimum values indicated that considering cancellation increase total revenue more than 10%.
收入管理(RM)是运营研究的一个子领域,旨在最大限度地提高通过销售易腐产品/服务获得的收入。由于过去几年航空货运业的大幅增长,需要先进的技术来最大限度地提高收入。本文研究了两种情况下的航空货运能力分配问题,包括取消可能性和不可能性。问题的两个容量维度,体积和重量,使请求接受策略的决策变得复杂。对于这两个问题的公式化,使用了动态规划技术。由于动态规划在大尺寸问题中会消耗大量内存,因此提出了三种启发式方法来解决问题,包括确定性整数线性规划(DILP)、投标价格(BP)和动态规划分解(DPD)。仿真结果表明,与其他方法相比,BP和DILP具有更好的性能。此外,两个问题的最优值的比较表明,考虑取消可使总收入增加10%以上。
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引用次数: 0
Group decision making for strategy prioritisation using hybrid aggregation: a case study of sugar industry in Thailand 基于混合聚合的集团战略优先决策——以泰国糖业为例
IF 0.7 Q4 MANAGEMENT Pub Date : 2018-10-04 DOI: 10.1504/IJAMS.2018.10015875
Mongkol Kittiyankajon, D. Chetchotsak
Strategy prioritisation with multiple criteria decision analysis is well accepted. When group decision making is concerned however, the process to aggregate each of the experts' decisions into the group decision is complicated and challenging. The traditional geometric mean method is very common for group decision but it might ignore variations among the experts' decisions. This paper proposed an aggregation algorithm for group decision to be used for strategy prioritisation which considered the following features: 1) agreement among the individuals' decisions; 2) influence of persons who had greater preferential difference; 3) the ranks of alternatives by each expert; 4) the group decision be closest to the best alternative but farthest from the worst one. Simulated situations, sensitivity analysis, and a case study for the sugar industry in Thailand were provided as numerical examples along with discussions of results. The proposed method can be applied for strategy prioritisation as well as other kinds of ranking problems.
采用多标准决策分析的战略优先级已被广泛接受。然而,当涉及到群体决策时,将每个专家的决策汇总为群体决策的过程是复杂而具有挑战性的。传统的几何平均法在群体决策中非常常见,但它可能会忽略专家决策之间的差异。本文提出了一种用于策略优先级排序的群体决策聚合算法,该算法考虑了以下特征:1)个体决策之间的一致性;2) 具有较大优惠差异的人的影响;3) 每个专家的备选方案排名;4) 群决策最接近最佳备选方案,但离最差备选方案最远。提供了泰国糖业的模拟情况、敏感性分析和案例研究作为数值示例,并对结果进行了讨论。所提出的方法可以应用于策略优先级以及其他类型的排序问题。
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引用次数: 1
期刊
International Journal of Applied Management Science
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