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Large/stochastic spatiotemporal demand data sets can prove intractable for location optimization problems, motivating the need for aggregation. However, demand aggregation induces errors. Significant theoretical research has been performed related to the modifiable areal unit problem and the zone definition problem. Minimal research has been accomplished related to the specific issues inherent to spatiotemporal demand data, such as search and rescue (SAR) data. This study provides a quantitative comparison of various aggregation methodologies and their relation to distance and volume based aggregation errors.

This paper introduces and applies a framework for comparing both deterministic and stochastic aggregation methods using distance- and volume-based aggregation error metrics. This paper additionally applies weighted versions of these metrics to account for the reality that demand events are nonhomogeneous. These metrics are applied to a large, highly variable, spatiotemporal demand data set of SAR events in the Pacific Ocean. Comparisons using these metrics are conducted between six quadrat aggregations of varying scales and two zonal distribution models using hierarchical clustering.

As quadrat fidelity increases the distance-based aggregation error decreases, while the two deliberate zonal approaches further reduce this error while using fewer zones. However, the higher fidelity aggregations detrimentally affect volume error. Additionally, by splitting the SAR data set into training and test sets this paper shows the stochastic zonal distribution aggregation method is effective at simulating actual future demands.

This study indicates no singular best aggregation method exists, by quantifying trade-offs in aggregation-induced errors practitioners can utilize the method that minimizes errors most relevant to their study. Study also quantifies the ability of a stochastic zonal distribution method to effectively simulate future demand data.

The objective of this research is to examine the performance of weather routing service in the North Pacific Ocean based on a global container shipping company.

The data comprise two passages: one that departs from the port of Taipei to the port of Los Angeles (TPE-LAX) and another that departs from the port of Tacoma to the port of Kaohsiung (TCM-KSG). A weather routing service was utilized to compare the differences of the distance, sailing time and fuel consumed among different voyages.

Results indicated that the average speed of vessel in winter is faster than in summer. The vessels consumed much more fuel in the winter than they did in the summer. In terms of the distance of the passage, the results show that the ships' sailing distance across the North Pacific Ocean in the summer was shorter than it was in the winter.

Due to the difficultly of practical data collection, relatively few sailing records were employed in this study. It is suggested that additional sailing records should be collected, which adopt weather routing recommendations, to more comprehensively analyze sailing performance in future research.

The study's findings offer valuable guidance to different stakeholders in the maritime industry (e.g. seafarers, marine hull and machinery companies, Protection and Indemnity Club (P&I), ocean container carriers and freight forwarders) to clarify their responsibilities in order to achieve desired sailing outcomes.

To the best of the authors' knowledge, the current study is the first research to utilize practical sailing data to provide objective evidence of sailing performance based on a weather routing service, which can assist various stakeholders to make optimal decisions.

Transnational entrepreneurship can be considered a new stream of research where migrant entrepreneurship and international business research fields intersect. The purpose of this paper is to offer a theoretical framework to address the following research question: How do transnational entrepreneurs (TEs) develop their competitive advantage to succeed in a global market?

Based on the strategic entrepreneurship approach and dynamic capability perspective, this paper suggests a theoretical framework to extend the understanding on how TEs may develop their competitive advantage to succeed in a global market.

The suggested theoretical framework exhibits how the social ties of TEs affects their firm performance through the mediating effect of a bundle of two organizational processes (opportunity sensing and opportunity seizing) and the moderating effect of institutional distance between countries of origin and residence.

TEs should not solely focus on their ethnic social ties. That is why this paper suggests that ethnic ties in the country of origin and the country of residence (COR) may lead to higher firm performance only if systematically used alongside nonethnic ties in the COR. Furthermore, it is crucial for TEs to understand the importance of dynamic capabilities in developing and sustaining their competitive advantage.

Based on the strategic entrepreneurship approach, this paper suggests a social tie-based model of the dynamic capability to address the theoretical void in the transnational entrepreneurship literature. The linkage between social tie and performance which has been in a black box is examined in terms of how strong and weak social ties may affect different underlying processes of TEs’ dynamic capabilities differently. In contrast to the common conceptualization of institutional distance as a negative moderator in international business literature, institutional distance is theorized as a positive moderator in the suggested theoretical model of transnational entrepreneurship.

We aimed to identify factors that influence student engagement in distance learning.

The research involved a group of 671 students from economic and technical higher education institutions in Poland. We collected the data with the CAWI technique and an original survey. Next, we processed the data using principal component analysis and then used the extracted components as predictors in the induced smoothing LASSO regression model.

The components of the students’ attitude toward remote classes learning conditions are: satisfaction with teachers’ approach, attitude to distance learning, the system of students’ values and motivation, IT infrastructure of the university, building a network of contacts and communication skills. The final model consisted of seven statistically significant variables, encompassing the student’s sex, level of studies and the first five extracted PCs. Student’s system of values and motivation as well as attitude toward distance learning, were those variables that had the biggest influence on student engagement.

The research result suggests that in addition to students’ system of values and motivation and their attitude toward distance learning, the satisfaction level of teachers’ attitude is one of the three most important factors that influence student engagement during the distance learning process.

The main value of this article is the statistical model of student engagement during distance learning. The article fills the research gap in identifying and evaluating the impact of various factors determining student engagement in the distance learning process.

This study focuses on the triadic multilevel psychic distance (MPD) between the firm, target market and bridge-maker and its consequences for firm internationalization. Specifically, it spotlights the triadic psychic distance between firms, the levels of psychic distance in the target market (country and business) and the bridge-maker. Therefore, this study examines the triadic MPD among these three entities and its impact on firm internationalization.

This study uses qualitative and case study research approaches. It is based on 8 case companies and 24 internationalization cases. Secondary data were collected, and interviews with bridge-makers and industry experts were conducted.

The study found that MPD appeared in the triad. The MPD between firms and markets is related to country-specific differences and business difficulties. The MPD between the firm and the bridge-maker is based on the latter’s lack of knowledge vis-à-vis bridging the firm’s MPD. Finally, the MPD between bridge-makers and the market is based on the former’s lack of knowledge of the home country’s business difficulties.

This is the first study to develop and adopt a triadic multilevel psychic distance conceptualization that provides evidence for and sheds light on the triadic MPD and its effect on firm internationalization. This study identifies the reasons behind triadic MPD in connection to firm internationalization. Notably, firm internationalization is interdependent on the triadic MPD setting between the firm, bridge-maker and target market. It has theoretical value and contributes to the recent advancement in the understanding of MPD in international marketing literature.

Economies of scale drive container ship owners towards ordering larger vessels. Terminals need to ensure a safe (un)loading operation of these vessels, which can only be guaranteed if the mooring equipment is not overloaded (lines, fenders and bollards) and if the motions of the vessel remain below set limits, under external forces. This paper aims to focus on the passing vessel effect as a potential disturbing factor in the Port of Antwerp.

Motion criteria for allowing safe (un)loading of container vessels are established by considering the container handling process and existing international standards (PIANC). A case study simulation is presented where the behaviour of the moored vessel under ship passages is evaluated. Starting from a representative event, the effect of changes in passing speed and distance is discussed.

The study illustrates the influence of passing velocity and distance on the behaviour of the moored vessel, showing that when passing speeds are higher and/or distances lower than the reference event, safety limits are potentially exceeded. Possible mitigating measures, including the use of stiffer mooring lines and/or a change in arrangement, are discussed.

This paper serves as a basis for future research on safety criteria and optimisation of the mooring equipment and configuration to deal with passing vessel effects.

The presented results can be used by ship and terminal designers to gain familiarity with passing vessel effects and adopt suggested best practice.

By restricting the motions of the passing vessels, the focus and general well-being of the crane operator is enhanced, as is the safety of workers.

The paper provides a unique combination of container fleet observation, safety criteria establishment and case study application.

The purpose of this study is to analyze the effect of China’s potential domestic emission control area (DECA) with 0.1 per cent sulphur limit on sulphur emission reduction.

The authors calculate the fuel cost of a direct path within the DECA and a path that bypasses the DECA for ships that sail between two Chinese ports in view of the DECA. Ships adopt the path with the lower cost and the resulting sulphur dioxide (SO₂) emissions can be calculated. They then conduct sensitivity analysis of the SO₂ emissions with different values of the parameters related to sailing distance, fuel price and ships.

The results show that ships tend to detour to bypass the DECA when the distance between the two ports is long, the ratio of the price of low sulphur fuel and that of high sulphur fuel is high and the required time for fuel switching is long. If the time required for fuel switching is less than 12 h or even 24 h, it can be anticipated that a large number of ships will bypass the DECA, undermining the SO₂ reduction effect of the DECA.

This study points out the size and shape difference between the emission control areas in Europe and North America and China’s DECA affects ships’ path choice and SO₂ emissions.

The link between social interaction and entrepreneurial activity has attracted considerable attention in the entrepreneurship literature. In this study, we focus on individual cultural values, shaped by interactions in the social space, as they relate to opportunity evaluation, a cornerstone of the entrepreneurial process. We test our predictions in India, a non-Western society that has sustained one of the highest rates of entrepreneurial activity in the world. Our findings suggest that value orientation of high power distance is negatively associated with opportunity evaluation whereas uncertainty avoidance, collectivism, and femininity are positively associated with opportunity evaluation.

This study aims to shed light on the relationship between gender diversity and group performance by considering the moderating role of relative cultural distance. Drawing from the categorization–elaboration model (CEM), the authors hypothesize that gender-diverse collaborative learning groups perform better when a low level of relative cultural distance in country-level individualism–collectivism or power distance exists among group members.

To test this hypothesis, the authors conducted a study on 539 undergraduate students organized into 94 groups. The assessment of group performance was based on scores given by external raters.

The authors found that relative cultural distance significantly moderated the gender diversity–group performance relationship such that gender diversity was positively related to group performance when the collaborative learning group included members who similarly valued individualism–collectivism or power distance (i.e. relative cultural distance was low) and was negatively related to group performance when the collaborative learning group comprised members who differently valued individualism–collectivism or power distance (i.e. relative cultural distance was high).

This study contributes to understanding when gender diversity is positively associated with group performance by expanding the range of previously examined diversity dimensions to include relative cultural distance in country-level individualism–collectivism and power distance.

This paper aims to examine consumers’ evaluation of and reaction to the coexistence of brand misconduct and sustainability claims through a series of studies.

The research questions are examined across three studies. Consumer’s scepticism of corporate social responsibility (CSR) is considered the driver of brand distance. Brand hypocrisy is postulated to mediate the relationship between scepticism to CSR and brand distance. Furthermore, brand trust and desire for exclusivity are tested as moderators of brand hypocrisy and brand distance.

The findings showed that environmental misconduct leads to perceived brand hypocrisy and brand distancing. When luxury brands take action to remedy their actions, the perceived brand hypocrisy and brand distancing decrease. In addition, brand trust and desire for exclusivity dilute the relationship between brand hypocrisy and brand distance.

The findings show that, standing in a contradictory position, brands can still reduce the consumers’ perceived brand distance by building a strong consumers’ trust toward the brand. At the same time, relating the luxury consumers’ yearning for the exclusive products and services, the findings show that the consumers with a strong desire for exclusivity feel a lower level of brand distance even if the brand gets involved in misconduct.

Este artículo examina la evaluación y la reacción de los consumidores ante la coexistencia de la mala conducta de la marca y las alegaciones de sostenibilidad a través de una serie de estudios.

Las preguntas de investigación se examinan a través de tres estudios. El escepticismo de los consumidores respecto a la RSC se considera el motor del distanciamiento de las marcas. Se postula que la hipocresía de la marca media la relación entre el escepticismo hacia la RSE y la distancia de la marca. Además, se comprueba que la confianza en la marca y el deseo de exclusividad son moderadores de la hipocresía y la distancia a la marca.

Los resultados mostraron que la mala conducta medioambiental conduce a la percepción de hipocresía de la marca y al distanciamiento de la misma. Cuando las marcas de lujo toman medidas para remediar sus acciones, la hipocresía y el distanciamiento de marca percibidos disminuyen. Además, la confianza en la marca y el deseo de exclusividad diluyen la relación entre la hipocresía y el distanciamiento de la marca.

Los resultados demuestran que, situándose en una posición contradictoria, las marcas pueden seguir reduciendo el distanciamiento de marca percibido por los consumidores mediante la creación de una fuerte confianza de los consumidores hacia la marca. Al mismo tiempo, relacionando el anhelo de los consumidores de lujo por los productos y servicios exclusivos, nuestros hallazgos muestran que los consumidores con un fuerte deseo de exclusividad sienten un menor nivel de distancia a marca incluso si la marca se ve involucrada en una mala conducta.

本文通过一系列的研究, 考察了消费者对品牌不当行为和可持续发展主张并存的评价和反应。

研究问题在三项研究中得到了检验。消费者对企业社会责任的怀疑被认为是品牌距离的驱动因素。品牌伪善被假设为介导对企业社会责任的怀疑和品牌距离之间的关系。此外, 品牌信任和对排他性的渴望被测试为品牌伪善和品牌距离的调节因素。

研究结果显示, 环境方面的不当行为导致了人们对品牌伪善和品牌距离的感知。当奢侈品牌采取行动补救他们的行为时, 被感知的品牌伪善和品牌距离就会减少。此外, 品牌信任和对排他性的渴望稀释了品牌伪善和品牌距离之间的关系。

研究结果表明, 站在矛盾的立场上, 品牌仍然可以通过建立消费者对品牌的强烈信任来减少消费者感知的品牌距离。同时, 联系到奢侈品消费者对独家产品和服务的渴望, 我们的研究结果表明, 即使品牌涉及到不正当行为, 对独家性有强烈渴望的消费者也会感到较低的品牌距离。