Environmental concerns attract growing attention in aviation. Airlines and other aviation stakeholders are increasingly committed to more environmentally friendly operations. This paper aims to expand the understanding of the airlines' environmental attitudes and map best practices in the sector. To achieve this goal, the authors followed a two-stage analysis. Initially, a number of interviews were conducted with a focus group of key respondents from six Greek airlines, to draw the general picture of their environmental awareness. In the second stage, the authors studied the market's dominant airlines as a case to gain a deeper understanding of how an Environmental Management System (EMS) is deployed in practice and to allow for best practices to emerge. The research findings highlight the need for EMSs to become an integral part of airlines' operational strategy and the imperative for an articulate regulatory framework able to enhance the airlines' eco-path through concrete guidelines and knowledge exchange.
{"title":"Sustainability challenges in airlines contemporary environmental management","authors":"Elen Paraskevi Paraschi , Ioulia Poulaki , Athina Papageorgiou","doi":"10.1016/j.jairtraman.2024.102616","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102616","url":null,"abstract":"<div><p>Environmental concerns attract growing attention in aviation. Airlines and other aviation stakeholders are increasingly committed to more environmentally friendly operations. This paper aims to expand the understanding of the airlines' environmental attitudes and map best practices in the sector. To achieve this goal, the authors followed a two-stage analysis. Initially, a number of interviews were conducted with a focus group of key respondents from six Greek airlines, to draw the general picture of their environmental awareness. In the second stage, the authors studied the market's dominant airlines as a case to gain a deeper understanding of how an Environmental Management System (EMS) is deployed in practice and to allow for best practices to emerge. The research findings highlight the need for EMSs to become an integral part of airlines' operational strategy and the imperative for an articulate regulatory framework able to enhance the airlines' eco-path through concrete guidelines and knowledge exchange.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102616"},"PeriodicalIF":6.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141084606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-21DOI: 10.1016/j.jairtraman.2024.102615
Lin Chen , Enjian Yao , Yang Yang , Long Pan , ShaSha Liu
Uneven utilization of airport clusters is a widespread problem, yet China is still planning to build more airports. Intermodal Passenger Transport Service (IPTS), the most typical of which is the Air-Rail Integration Service (ARIS), is one new way to solve this problem. Although some service products have been derived, intermodal travel services are still in their infancy due to problems such as long transfer time and inconvenient connectivity arising from the fact that those products fail to take into account the complexity of transfers between multiple hubs, resulting in a low penetration rate of intermodal services. Therefore, this study constructs a universal Hybrid Choice Model (HCM) framework that includes mode choice and city choice based on an online stated preference (SP) survey about multi-hub intermodal transportation in the Beijing-Tianjin-Hebei urban agglomeration, and introduces travelers' concerns about travel security, comfort, convenience and reliability as attitudinal variables, which expands the research on IPTS. Then the willingness to pay (WTP) for travel service is evaluated to demonstrate intermodal travelers' preference for shorter transfer time, transferring in the metropolis, more reserve time for air than rail, and the impact mechanisms of luggage through-handling service and mutual recognition mechanism of security checks. Last but not least, through scenario testing, we find that the excessive concern for security and comfort among high-educated and high-income passengers with a low tolerance for transfer time will reduce the market share of air-rail. These findings can assist relevant departments and businesses in making more humane plans for intermodal travel and infrastructure construction.
{"title":"Understanding passengers' intermodal travel behavior to improve air-rail service: A case study of Beijing-Tianjin-Hebei urban agglomeration","authors":"Lin Chen , Enjian Yao , Yang Yang , Long Pan , ShaSha Liu","doi":"10.1016/j.jairtraman.2024.102615","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102615","url":null,"abstract":"<div><p>Uneven utilization of airport clusters is a widespread problem, yet China is still planning to build more airports. Intermodal Passenger Transport Service (IPTS), the most typical of which is the Air-Rail Integration Service (ARIS), is one new way to solve this problem. Although some service products have been derived, intermodal travel services are still in their infancy due to problems such as long transfer time and inconvenient connectivity arising from the fact that those products fail to take into account the complexity of transfers between multiple hubs, resulting in a low penetration rate of intermodal services. Therefore, this study constructs a universal Hybrid Choice Model (HCM) framework that includes mode choice and city choice based on an online stated preference (SP) survey about multi-hub intermodal transportation in the Beijing-Tianjin-Hebei urban agglomeration, and introduces travelers' concerns about travel security, comfort, convenience and reliability as attitudinal variables, which expands the research on IPTS. Then the willingness to pay (WTP) for travel service is evaluated to demonstrate intermodal travelers' preference for shorter transfer time, transferring in the metropolis, more reserve time for air than rail, and the impact mechanisms of luggage through-handling service and mutual recognition mechanism of security checks. Last but not least, through scenario testing, we find that the excessive concern for security and comfort among high-educated and high-income passengers with a low tolerance for transfer time will reduce the market share of air-rail. These findings can assist relevant departments and businesses in making more humane plans for intermodal travel and infrastructure construction.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102615"},"PeriodicalIF":6.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141073283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-16DOI: 10.1016/j.jairtraman.2024.102611
Xiaozhen Liang, Chenxi Hong, Jiaqi Chen, Yingying Wang, Mingge Yang
As the global process of digitalization accelerates and breakthroughs in internet technology emerge, governments worldwide are advocating for data-driven decision-making, aiming to enhance public service efficiency and stimulate economic growth. Against this backdrop, this study focuses on utilizing search engine data (SED) to improve air passenger demand forecasting, responding to national policies aimed at enhancing data analysis capabilities and promoting the development of intelligent transportation systems; however, the existing research is confined to the exploration of the temporal dependency between SED and air passenger demand variables with ignoring the spatial dependency. In order to eliminate this blind spot and catch from various parts of tourist attention, this study proposes a novel SED-driven hybrid forecasting architecture inspired by the theory of spatial effect between adjacent tourist destinations. The architecture includes three main steps: (1) construction of spatial-temporal SED variables, based on two-stage data preprocessing method; (2) variable decomposition and reconstruction, based on TVF-EMD algorithm; (3) prediction of different components of air passenger demand, employed ARIMA model and IHGS-KELM based multi-model fusion strategy respectively, where the IHGS algorithm integrates the circle chaos initialization strategy and the nonlinear convergence factor strategy. To confirm the practical applicability of this hybrid architecture, five comparative experiments based on the actual dataset are designed. The principal results are concluded as follows: (1) spatial-temporal SED is conducive to a fairly accurate air passenger demand forecasting; (2) the multi-model fusion strategy can integrate the fortes of various types of prediction models to obtain better prediction accuracy; (3) the adaptive ensemble method based on IHGS-KELM can contribute to the upgradation of prediction performance of air passenger demand.
随着全球数字化进程的加快和互联网技术的突破,世界各国政府都在倡导数据驱动决策,旨在提高公共服务效率和刺激经济增长。在此背景下,本研究将重点放在利用搜索引擎数据(SED)改进航空客运需求预测上,以响应国家旨在提高数据分析能力和促进智能交通系统发展的政策;然而,现有研究仅限于探索 SED 与航空客运需求变量之间的时间依赖关系,而忽略了空间依赖关系。为了消除这一盲点,从游客关注的各个环节入手,本研究受相邻旅游目的地之间空间效应理论的启发,提出了一种新颖的 SED 驱动混合预测架构。该架构包括三个主要步骤:(1) 基于两阶段数据预处理方法构建时空 SED 变量;(2) 基于 TVF-EMD 算法进行变量分解和重构;(3) 分别采用 ARIMA 模型和基于 IHGS-KELM 的多模型融合策略预测航空客运需求的不同组成部分,其中 IHGS 算法集成了圆混沌初始化策略和非线性收敛因子策略。为了证实这种混合架构的实用性,设计了五个基于实际数据集的对比实验。主要结果总结如下(1)时空 SED 有利于实现相当准确的航空客运需求预测;(2)多模型融合策略可以整合各类预测模型的优势,获得更好的预测精度;(3)基于 IHGS-KELM 的自适应集合方法有助于提升航空客运需求预测性能。
{"title":"A hybrid forecasting architecture for air passenger demand considering search engine data and spatial effect","authors":"Xiaozhen Liang, Chenxi Hong, Jiaqi Chen, Yingying Wang, Mingge Yang","doi":"10.1016/j.jairtraman.2024.102611","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102611","url":null,"abstract":"<div><p>As the global process of digitalization accelerates and breakthroughs in internet technology emerge, governments worldwide are advocating for data-driven decision-making, aiming to enhance public service efficiency and stimulate economic growth. Against this backdrop, this study focuses on utilizing search engine data (SED) to improve air passenger demand forecasting, responding to national policies aimed at enhancing data analysis capabilities and promoting the development of intelligent transportation systems; however, the existing research is confined to the exploration of the temporal dependency between SED and air passenger demand variables with ignoring the spatial dependency. In order to eliminate this blind spot and catch from various parts of tourist attention, this study proposes a novel SED-driven hybrid forecasting architecture inspired by the theory of spatial effect between adjacent tourist destinations. The architecture includes three main steps: (1) construction of spatial-temporal SED variables, based on two-stage data preprocessing method; (2) variable decomposition and reconstruction, based on TVF-EMD algorithm; (3) prediction of different components of air passenger demand, employed ARIMA model and IHGS-KELM based multi-model fusion strategy respectively, where the IHGS algorithm integrates the circle chaos initialization strategy and the nonlinear convergence factor strategy. To confirm the practical applicability of this hybrid architecture, five comparative experiments based on the actual dataset are designed. The principal results are concluded as follows: (1) spatial-temporal SED is conducive to a fairly accurate air passenger demand forecasting; (2) the multi-model fusion strategy can integrate the fortes of various types of prediction models to obtain better prediction accuracy; (3) the adaptive ensemble method based on IHGS-KELM can contribute to the upgradation of prediction performance of air passenger demand.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102611"},"PeriodicalIF":6.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140952289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-13DOI: 10.1016/j.jairtraman.2024.102598
Fecri Karanki , Volodymyr Bilotkach , Yi Gao , Chien-Tsung Lu
The rise of e-commerce, fueled by digitalization and shifting in consumer demand, has revolutionized air cargo. While all e-commerce stakeholders are engaged in fierce competition to increase their market share, airports as integral elements of the air cargo supply chain could not be apathetic to this competition. This study examines the economic implication of e-commerce on high cargo volume airports, focusing on cost savings and productivity growth. Utilizing the Farrell measure of input-oriented technical efficiency, we estimate scope economies for the U.S. airports between 2009 and 2019. The results reveal higher scope economies for high cargo volume airports, indicating greater cost savings resulting from e-commerce activities. In addition, the Malmquist index is employed to assess productivity growth. The index is decomposed into technical change, efficiency change, and scale change. The findings show a 3.3% overall productivity growth in the U.S. airport industry, primarily driven by technical change. Besides, high cargo volume airports exhibit higher productivity growth compared to low cargo volume airports, with 4.1% and 2.9% growth rates, respectively. The gap between high cargo volume and low cargo volume airports widened in 2017, aligning with the pre-pandemic peak in e-commerce activity. Furthermore, high cargo volume airports experience higher efficiency gains and technical advancements. While efficiency gains are attributed to improved performance and increased capacity utilization, the technical advancements can be explained by the digitalization and customized operations associated with e-commerce. Overall, the results highlight the significant contribution of e-commerce to cost savings and productivity growth in high-cargo volume airports.
{"title":"The economic impact of E-commerce on the U.S. airports: Cost savings and productivity growth","authors":"Fecri Karanki , Volodymyr Bilotkach , Yi Gao , Chien-Tsung Lu","doi":"10.1016/j.jairtraman.2024.102598","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102598","url":null,"abstract":"<div><p>The rise of e-commerce, fueled by digitalization and shifting in consumer demand, has revolutionized air cargo. While all e-commerce stakeholders are engaged in fierce competition to increase their market share, airports as integral elements of the air cargo supply chain could not be apathetic to this competition. This study examines the economic implication of e-commerce on high cargo volume airports, focusing on cost savings and productivity growth. Utilizing the Farrell measure of input-oriented technical efficiency, we estimate scope economies for the U.S. airports between 2009 and 2019. The results reveal higher scope economies for high cargo volume airports, indicating greater cost savings resulting from e-commerce activities. In addition, the Malmquist index is employed to assess productivity growth. The index is decomposed into technical change, efficiency change, and scale change. The findings show a 3.3% overall productivity growth in the U.S. airport industry, primarily driven by technical change. Besides, high cargo volume airports exhibit higher productivity growth compared to low cargo volume airports, with 4.1% and 2.9% growth rates, respectively. The gap between high cargo volume and low cargo volume airports widened in 2017, aligning with the pre-pandemic peak in e-commerce activity. Furthermore, high cargo volume airports experience higher efficiency gains and technical advancements. While efficiency gains are attributed to improved performance and increased capacity utilization, the technical advancements can be explained by the digitalization and customized operations associated with e-commerce. Overall, the results highlight the significant contribution of e-commerce to cost savings and productivity growth in high-cargo volume airports.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102598"},"PeriodicalIF":6.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140914119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-10DOI: 10.1016/j.jairtraman.2024.102599
Ubay Pérez-Granja , José María Pérez-Sánchez , Jorge V. Pérez-Rodríguez
This paper explores the link between air transport safety and profitability. Traditionally, the empirical literature has used Poisson regression models to estimate the expected number of accidents given the profitability of the airline. However, there are two major deficiencies in this analysis related to the statistical properties of the data. First, the equi-dispersion assumed in Poisson models hardly holds in the airline data. Second, accidents are rare cases, so the data has an excess of zeros. In this paper, we propose the use of a zero-inflated negative binomial model to deal with these shortcomings. Our results show several interesting facts. On the one hand, they show that airlines with higher levels of profitability are less likely to have an accident. On the other hand, when an accident occurs, there is a higher expected number of accidents in airlines with higher profitability. Finally, the severity of an accident has an inverse relationship with profitability.
{"title":"Assessing economic performance and aviation accidents using zero-inflated and over-dispersed panel data models","authors":"Ubay Pérez-Granja , José María Pérez-Sánchez , Jorge V. Pérez-Rodríguez","doi":"10.1016/j.jairtraman.2024.102599","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102599","url":null,"abstract":"<div><p>This paper explores the link between air transport safety and profitability. Traditionally, the empirical literature has used Poisson regression models to estimate the expected number of accidents given the profitability of the airline. However, there are two major deficiencies in this analysis related to the statistical properties of the data. First, the equi-dispersion assumed in Poisson models hardly holds in the airline data. Second, accidents are rare cases, so the data has an excess of zeros. In this paper, we propose the use of a zero-inflated negative binomial model to deal with these shortcomings. Our results show several interesting facts. On the one hand, they show that airlines with higher levels of profitability are less likely to have an accident. On the other hand, when an accident occurs, there is a higher expected number of accidents in airlines with higher profitability. Finally, the severity of an accident has an inverse relationship with profitability.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102599"},"PeriodicalIF":6.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0969699724000644/pdfft?md5=9b2d4caebbaf6614203a0d5be9eb55e6&pid=1-s2.0-S0969699724000644-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140901178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-10DOI: 10.1016/j.jairtraman.2024.102601
Nick Ehrhardt , Paul Herrmann Horlacher , Anna Straubinger
Technological advances have paved the way for urban air mobility (UAM) as a new mode of transportation, providing solutions for both inner-city and regional transportation. Novel vertical take-off and landing (VTOL) vehicles promise to be less noisy and safer than existing helicopters, thus allowing for an integration of UAM into current mobility systems. However, as this market is non-existent today, companies engaged in this field face several uncertainties. Strategic decision factors supporting VTOL manufacturers to successfully commercialize their innovation are still mainly unassessed. Looking into the innovation strategy literature we find little guidance on how high-technology companies can profit from innovation in so far non-existent markets. We therefore conduct expert interviews that allow us to identify eight decision factors that VTOL manufacturers are expected to take into account when setting up their commercial strategy. Building on the findings from these interviews we suggest to enhance the Profiting from Innovation (PFI) framework by a peripheric sphere that incorporates the impact of external factors on commercial success. This approach on the one hand, allows to provide insights into strategic management approaches of VTOL manufacturers, while on the other hand, this research adds to the scientific literature on strategic decision factors in non-existent markets.
{"title":"Innovation strategies for non-existent markets - Profiting from urban air mobility","authors":"Nick Ehrhardt , Paul Herrmann Horlacher , Anna Straubinger","doi":"10.1016/j.jairtraman.2024.102601","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102601","url":null,"abstract":"<div><p>Technological advances have paved the way for urban air mobility (UAM) as a new mode of transportation, providing solutions for both inner-city and regional transportation. Novel vertical take-off and landing (VTOL) vehicles promise to be less noisy and safer than existing helicopters, thus allowing for an integration of UAM into current mobility systems. However, as this market is non-existent today, companies engaged in this field face several uncertainties. Strategic decision factors supporting VTOL manufacturers to successfully commercialize their innovation are still mainly unassessed. Looking into the innovation strategy literature we find little guidance on how high-technology companies can profit from innovation in so far non-existent markets. We therefore conduct expert interviews that allow us to identify eight decision factors that VTOL manufacturers are expected to take into account when setting up their commercial strategy. Building on the findings from these interviews we suggest to enhance the Profiting from Innovation (PFI) framework by a peripheric sphere that incorporates the impact of external factors on commercial success. This approach on the one hand, allows to provide insights into strategic management approaches of VTOL manufacturers, while on the other hand, this research adds to the scientific literature on strategic decision factors in non-existent markets.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102601"},"PeriodicalIF":6.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0969699724000668/pdfft?md5=8f77f70b925ef0b5181fae8286da9b1d&pid=1-s2.0-S0969699724000668-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140901176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-09DOI: 10.1016/j.jairtraman.2024.102595
Lenice M. Silva , Michelle C.G.S.P. Bandeira , Giovanna M.R. Borille , Rogéria A. Gomes , Lamartine N.F. Guimarães
Non-aeronautical revenues are associated with commercial activities at the airport, in which the fundamental factor in managing these revenues is the customers’ experience. This study numerically analyzed the influence of passenger satisfaction and waiting time on consumption made in the commercial facilities of the Airport Passenger Terminal, operating predominantly with domestic flights. This research was made through a structured questionnaire and the passengers in the airport to support the definition of the behavior of the Fuzzy Inference System. The results show that the greater the passenger satisfaction and waiting time, the greater the chances of significantly shopping. Furthermore, this study presents fuzzy modeling of a rule-based computational intelligence system capable of forecasting non-aeronautical revenues referring to shopping and dining experience, with significant contributions to the literature and airport management.
{"title":"Fuzzy inference system for forecasting non-aeronautical revenues considering the customer experience","authors":"Lenice M. Silva , Michelle C.G.S.P. Bandeira , Giovanna M.R. Borille , Rogéria A. Gomes , Lamartine N.F. Guimarães","doi":"10.1016/j.jairtraman.2024.102595","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102595","url":null,"abstract":"<div><p>Non-aeronautical revenues are associated with commercial activities at the airport, in which the fundamental factor in managing these revenues is the customers’ experience. This study numerically analyzed the influence of passenger satisfaction and waiting time on consumption made in the commercial facilities of the Airport Passenger Terminal, operating predominantly with domestic flights. This research was made through a structured questionnaire and the passengers in the airport to support the definition of the behavior of the Fuzzy Inference System. The results show that the greater the passenger satisfaction and waiting time, the greater the chances of significantly shopping. Furthermore, this study presents fuzzy modeling of a rule-based computational intelligence system capable of forecasting non-aeronautical revenues referring to shopping and dining experience, with significant contributions to the literature and airport management.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102595"},"PeriodicalIF":6.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140894998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The COVID-19 pandemic posed unprecedented challenges to the airline industry, necessitating a focus on maintaining high efficiency for profitability. This study assesses the efficiency of 26 international airlines from 2019 to 2022 using a dynamic network data envelopment analysis (DNDEA) methodology. The model accounts for the dynamic effect between two consecutive periods and incorporates an internal structure to evaluate airline performance across multiple dimensions. It enables the assessment of overall, period-specific, and stage-specific efficiencies. The findings reveal that while overall efficiency is moderately high on average, no airline achieved full efficiency during the pandemic. Efficiency decreased notably from 2019 to 2020, with a partial recovery but not a return to pre-pandemic levels by 2022. Operational performance remains satisfactory and stable, while service and financial performance exhibit lower efficiency, especially among low-cost airlines compared to full-service counterparts. Additionally, the study explores airlines' environmental impact by considering greenhouse gas emissions. Comparative analysis with a dynamic DEA model without internal structure highlights theoretical contributions, and the study offers managerial insights for airline leaders and policymakers.
{"title":"Performance evaluation of the global airline industry under the impact of the COVID-19 pandemic: A dynamic network data envelopment analysis approach","authors":"Sijin Wu , Marios Dominikos Kremantzis , Umair Tanveer , Shamaila Ishaq , Xianghan O'Dea , Hua Jin","doi":"10.1016/j.jairtraman.2024.102597","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102597","url":null,"abstract":"<div><p>The COVID-19 pandemic posed unprecedented challenges to the airline industry, necessitating a focus on maintaining high efficiency for profitability. This study assesses the efficiency of 26 international airlines from 2019 to 2022 using a dynamic network data envelopment analysis (DNDEA) methodology. The model accounts for the dynamic effect between two consecutive periods and incorporates an internal structure to evaluate airline performance across multiple dimensions. It enables the assessment of overall, period-specific, and stage-specific efficiencies. The findings reveal that while overall efficiency is moderately high on average, no airline achieved full efficiency during the pandemic. Efficiency decreased notably from 2019 to 2020, with a partial recovery but not a return to pre-pandemic levels by 2022. Operational performance remains satisfactory and stable, while service and financial performance exhibit lower efficiency, especially among low-cost airlines compared to full-service counterparts. Additionally, the study explores airlines' environmental impact by considering greenhouse gas emissions. Comparative analysis with a dynamic DEA model without internal structure highlights theoretical contributions, and the study offers managerial insights for airline leaders and policymakers.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102597"},"PeriodicalIF":6.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0969699724000620/pdfft?md5=98e0d827b0a914a557ac7f1e0e3faa5d&pid=1-s2.0-S0969699724000620-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140894999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-09DOI: 10.1016/j.jairtraman.2024.102596
Omar Alharasees, Utku Kale
The aviation operator's role and duties undergo a dramatic change from direct engagement to information management and surveillance in today's advanced aviation environment. In this modern and highly automated working environment, operators must handle various information, data, and transmission during operations, particularly while making decisions in specific situations. The total load system of operators (information, communication, mental, task, and workload) has been fundamentally reshaped in response to these dynamic changes. The highly automated system is linked to unbalanced operator loads, unanticipated losses in situation awareness, inappropriate decision-making quality, and higher stress levels. This research employs the Analytical Hierarchy Process (AHP) as a foundational framework, integrating the Fuzzy Analytical Hierarchy Process (FAHP) on the AHP model to address uncertainties and applying the Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS) for ranking the aviation operators' total loads. online Survey distributed among 63 experts across four aviation operator groups: less experienced pilots, expert pilots, less experienced Air Traffic Controllers (ATCOs), and experienced ATCOs. serves to evaluate the pivotal characteristics of the operators' total loads model. The results highlighted the communication load's effect on the aviation operators specifically the level of the language as well the workload specifically both practicing referring to the experience and skills.
{"title":"Aviation Operators’ Total Loads Analysis by Multi-Criteria Decision-Making","authors":"Omar Alharasees, Utku Kale","doi":"10.1016/j.jairtraman.2024.102596","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102596","url":null,"abstract":"<div><p>The aviation operator's role and duties undergo a dramatic change from direct engagement to information management and surveillance in today's advanced aviation environment. In this modern and highly automated working environment, operators must handle various information, data, and transmission during operations, particularly while making decisions in specific situations. The total load system of operators (information, communication, mental, task, and workload) has been fundamentally reshaped in response to these dynamic changes. The highly automated system is linked to unbalanced operator loads, unanticipated losses in situation awareness, inappropriate decision-making quality, and higher stress levels. This research employs the Analytical Hierarchy Process (AHP) as a foundational framework, integrating the Fuzzy Analytical Hierarchy Process (FAHP) on the AHP model to address uncertainties and applying the Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS) for ranking the aviation operators' total loads. online Survey distributed among 63 experts across four aviation operator groups: less experienced pilots, expert pilots, less experienced Air Traffic Controllers (ATCOs), and experienced ATCOs. serves to evaluate the pivotal characteristics of the operators' total loads model. The results highlighted the communication load's effect on the aviation operators specifically the level of the language as well the workload specifically both practicing referring to the experience and skills.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"118 ","pages":"Article 102596"},"PeriodicalIF":6.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0969699724000619/pdfft?md5=9a757ba26019ae18f5645041cb191368&pid=1-s2.0-S0969699724000619-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140901177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.1016/j.jairtraman.2024.102594
Philip J. Slater, Alfred Greenfield, Earl Godfrey, Felice Policastro
The global airline industry represents fertile ground for research due to its susceptibility to extraneous demand shocks such as fuel price hikes, terrorist attacks, and global pandemics coupled with high leverage and high reliance on leasing. Accounting Standards Codification (ASC) 842 Leases and International Financial Reporting Standard (IFRS) 16 Leases became effective January 1st, 2019 for publicly-traded firms in the U.S. and overseas, requiring capitalization of the majority of leased assets. This study was motivated by how the acts may have affected reported airline liquidity, leverage, profitability and stock price, and if any evidence existed of lease restructure attempts in order to avoid capitalization; which may provide initial impacts. Using a sample of publicly-traded airlines incorporated in the U.S. and Europe, the current study used firm year-level filings from 2017 to 2019 to determine if passage of the acts were associated with changes in liquidity, leverage, profitability and stock price. One-way analysis of variance (ANOVA) and independent samples t-test parametric statistical testing was employed to determine any statistically significant change in the means of selected ratios operationalizing liquidity, leverage, profitability and firm valuation. The results indicated no significance for any of the variables operationalizing the latent constructs providing evidence contrary to previous predictions, and a significant difference between the two regions, worthy of further study. These findings are significant due to the vast financial reporting implications associated with these acts and their potential to skew financial ratios, juxtaposed against the ever-present threat of extraneous demand shocks which permeate this industry. The research also suggests management may have attempted lease restructures to circumvent the capitalization requirements of the act and warrants further research to investigate the generalizability of these findings to other industries.
{"title":"Losing altitude: The impact of new leasing standards on the liquidity, leverage, profitability and valuation of U.S. and European airlines","authors":"Philip J. Slater, Alfred Greenfield, Earl Godfrey, Felice Policastro","doi":"10.1016/j.jairtraman.2024.102594","DOIUrl":"https://doi.org/10.1016/j.jairtraman.2024.102594","url":null,"abstract":"<div><p>The global airline industry represents fertile ground for research due to its susceptibility to extraneous demand shocks such as fuel price hikes, terrorist attacks, and global pandemics coupled with high leverage and high reliance on leasing. Accounting Standards Codification (ASC) 842 Leases and International Financial Reporting Standard (IFRS) 16 Leases became effective January 1st, 2019 for publicly-traded firms in the U.S. and overseas, requiring capitalization of the majority of leased assets. This study was motivated by how the acts may have affected reported airline liquidity, leverage, profitability and stock price, and if any evidence existed of lease restructure attempts in order to avoid capitalization; which may provide initial impacts. Using a sample of publicly-traded airlines incorporated in the U.S. and Europe, the current study used firm year-level filings from 2017 to 2019 to determine if passage of the acts were associated with changes in liquidity, leverage, profitability and stock price. One-way analysis of variance (ANOVA) and independent samples t-test parametric statistical testing was employed to determine any statistically significant change in the means of selected ratios operationalizing liquidity, leverage, profitability and firm valuation. The results indicated no significance for any of the variables operationalizing the latent constructs providing evidence contrary to previous predictions, and a significant difference between the two regions, worthy of further study. These findings are significant due to the vast financial reporting implications associated with these acts and their potential to skew financial ratios, juxtaposed against the ever-present threat of extraneous demand shocks which permeate this industry. The research also suggests management may have attempted lease restructures to circumvent the capitalization requirements of the act and warrants further research to investigate the generalizability of these findings to other industries.</p></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"117 ","pages":"Article 102594"},"PeriodicalIF":6.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}