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The aviation industry has grown rapidly worldwide and is struggling against intense competition. Especially in Thailand, the compound annual growth rate of passengers traveling by air has increased continuously over the past decade. Unfortunately, during the past two years, the ongoing COVID-19 pandemic has caused severe economic crises for nearly all businesses and industries, including the aviation industry and especially for passenger airlines whose number of customers has decreased astoundingly due to travel restriction. To maintain business stability, therefore, airlines must build customer loyalty to survive in times of crisis. This study thus examines critical factors’ impact on airline loyalty by using a Bayesian network (BN) derived from a structural equation modeling (SEM). The study integrates the SEM and BN to refine causal relationships between critical factors, identified as critical pathways. Findings reveal that customer satisfaction and customer trust, followed by perceived value, dramatically influence customer loyalty and so are considered priorities for building airlines’ customer loyalty. This study also recommends practical strategies and policies to improve customer loyalty amid the competitive airline business during and after the COVID-19 era.
Kattreeya Chanpariyavatevong; Warit Wipulanusat; Thanapong Champahom; Sajjakaj Jomnonkwao; Dissakoon Chonsalasin; Vatanavongs Ratanavaraha. Predicting Airline Customer Loyalty by Integrating Structural Equation Modeling and Bayesian Networks. Sustainability 2021, 13, 7046 .
AMA StyleKattreeya Chanpariyavatevong, Warit Wipulanusat, Thanapong Champahom, Sajjakaj Jomnonkwao, Dissakoon Chonsalasin, Vatanavongs Ratanavaraha. Predicting Airline Customer Loyalty by Integrating Structural Equation Modeling and Bayesian Networks. Sustainability. 2021; 13 (13):7046.
Chicago/Turabian StyleKattreeya Chanpariyavatevong; Warit Wipulanusat; Thanapong Champahom; Sajjakaj Jomnonkwao; Dissakoon Chonsalasin; Vatanavongs Ratanavaraha. 2021. "Predicting Airline Customer Loyalty by Integrating Structural Equation Modeling and Bayesian Networks." Sustainability 13, no. 13: 7046.
Cross-departmental collaboration, one of the most salient administrative reforms, has been promoted to resolve cross-jurisdictional administration issues over the previous three decades. Nearly all previous empirical studies have examined the direct impact of cross-departmental collaboration on organizational performance without accounting for the indirect effects of managerial practices. Using data from the Federal Highway Administration, this study develops an integrated structural equation modeling and Bayesian network model used to examine both direct and indirect impacts of cross-departmental collaboration on organizational performance. The structural model indicates that cross-departmental collaboration has a direct effect on organizational performance and indirect effects through its influence on resource acquisition and knowledge creation. The scenario-based simulation suggests the optimal integration of managerial actions to improve agency performance, which is achieved by encouraging cross-departmental collaboration and supporting the knowledge creation process. Finally, implications are provided to present practical managerial actions from the Federal Highway Administration as an exemplar for other highway agencies.
Warit Wipulanusat; Jirapon Sunkpho; Rodney Stewart. Effect of Cross-Departmental Collaboration on Performance: Evidence from the Federal Highway Administration. Sustainability 2021, 13, 6024 .
AMA StyleWarit Wipulanusat, Jirapon Sunkpho, Rodney Stewart. Effect of Cross-Departmental Collaboration on Performance: Evidence from the Federal Highway Administration. Sustainability. 2021; 13 (11):6024.
Chicago/Turabian StyleWarit Wipulanusat; Jirapon Sunkpho; Rodney Stewart. 2021. "Effect of Cross-Departmental Collaboration on Performance: Evidence from the Federal Highway Administration." Sustainability 13, no. 11: 6024.
This article presents a field-performance investigation on an Integrated Solar Water Supply System (SWSS) at two isolated agricultural areas in Thailand. The two case-study villages (Pongluek and Bangkloy) have experienced severe draughts in recent decades, and, therefore, water supply has become a major issue. A stand-alone 15.36 kW solar power and a 15 kW solar submersible pump were installed along with the input power generated by solar panels supported by four solar trackers. The aim is to lift water at the static head of 64 and 48 m via a piping length of 400 m for each village to be stored in 1000 and 1800 m3 reservoirs at an average of 300 and 400 m3 per day, respectively, for Pongluek and Bangkloy villages. The case study results show that the real costs of electricity generated by SWSS using solar photovoltaic (PV) systems intergraded with the solar tracking system yield better performance and are more advantageous compared with the non-tracking system. This study illustrates how system integration has been employed. System design and commercially available simulation predictions are elaborated. Construction, installation, and field tests for SWSS are discussed and highlighted. Performances of the SWSS in different weather conditions, such as sunny, cloudy, and rainy days, were analysed to make valuable suggestions for higher efficiency of the integrated solar water supply systems.
Thanongsak Imjai; Kamon Thinsurat; Pakorn Ditthakit; Warit Wipulanusat; Monthian Setkit; Reyes Garcia. Performance Study of an Integrated Solar Water Supply System for Isolated Agricultural Areas in Thailand: A Case-study of the Royal Initiative Project. Water 2020, 12, 2438 .
AMA StyleThanongsak Imjai, Kamon Thinsurat, Pakorn Ditthakit, Warit Wipulanusat, Monthian Setkit, Reyes Garcia. Performance Study of an Integrated Solar Water Supply System for Isolated Agricultural Areas in Thailand: A Case-study of the Royal Initiative Project. Water. 2020; 12 (9):2438.
Chicago/Turabian StyleThanongsak Imjai; Kamon Thinsurat; Pakorn Ditthakit; Warit Wipulanusat; Monthian Setkit; Reyes Garcia. 2020. "Performance Study of an Integrated Solar Water Supply System for Isolated Agricultural Areas in Thailand: A Case-study of the Royal Initiative Project." Water 12, no. 9: 2438.
This article presents a field-performance investigation on an Integrated Solar Water Supply System (SWSS) at two isolated agricultural areas in Thailand. The two case-study villages (Pongluek and Bangkloy ) have experienced severe draughts in the last decades, and therefore water supply has become a major issue. A stand-alone 15.36 kW solar power and a 15 kW solar submersible pump were installed along with the input power generated by solar panels supported by four solar trackers. The aim is to lift water at the static head of 64 and 48 m via piping length of 400 metres for each village to be stored in 1,000 m3 and 1,800 m3 reservoirs at an average of 300 m3 and 400 m3 per day, respectively for Pongluek and Bangkloy villages. The case study results have shown that the real costs of electricity generated by SWSS using solar PV systems intergraded with the solar tracking system yield better performance and are more advantageous compared with the non-tracking system. This study illustrates how system integration has been employed. System design and commercially available simulation predictions are elaborated. Construction, installation, and field tests for SWSS are discussed and highlighted. Performances of the SWSS in different weather conditions such as sunny, cloudy, and rainy days were analysed to make valuable suggestions for higher efficiency of the integrated solar water supply systems.
Thanongsak Imjai; Kamon Thinsurat; Pakorn Ditthakit; Warit Wipulanusat; Monthian Setkit; Reyes Garcia. Performance Study of Integrated Solar-Water Supply System for Isolated Agricultural Areas in Thailand: Two Case-Study Villages of The Royal Initiative Project. 2020, 1 .
AMA StyleThanongsak Imjai, Kamon Thinsurat, Pakorn Ditthakit, Warit Wipulanusat, Monthian Setkit, Reyes Garcia. Performance Study of Integrated Solar-Water Supply System for Isolated Agricultural Areas in Thailand: Two Case-Study Villages of The Royal Initiative Project. . 2020; ():1.
Chicago/Turabian StyleThanongsak Imjai; Kamon Thinsurat; Pakorn Ditthakit; Warit Wipulanusat; Monthian Setkit; Reyes Garcia. 2020. "Performance Study of Integrated Solar-Water Supply System for Isolated Agricultural Areas in Thailand: Two Case-Study Villages of The Royal Initiative Project." , no. : 1.
This paper examined the innovation process in the Australian Public Service (APS) using a Bayesian network (BN) founded on an empirically derived structural equation model. The focus of the BN was to examine the impact of leadership style and organisational culture on workplace innovation and career satisfaction in the APS. Using scenario analysis, the best combination of managerial actions for enhancing APS career satisfaction was determined. The results emphasise the benefit of encouraging management to adopt a transformational leadership style and instilling innovative culture in their organisation. In addition, innovative culture was a key driver of workplace innovation, which served to improve the career satisfaction of APS employees. Implications are discussed to propose practical strategies for organisations wish to encourage innovation among employees.
Warit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart; Stewart L. Arnold; Jue Wang. Bayesian network revealing pathways to workplace innovation and career satisfaction in the public service. Journal of Management Analytics 2020, 7, 253 -280.
AMA StyleWarit Wipulanusat, Kriengsak Panuwatwanich, Rodney A. Stewart, Stewart L. Arnold, Jue Wang. Bayesian network revealing pathways to workplace innovation and career satisfaction in the public service. Journal of Management Analytics. 2020; 7 (2):253-280.
Chicago/Turabian StyleWarit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart; Stewart L. Arnold; Jue Wang. 2020. "Bayesian network revealing pathways to workplace innovation and career satisfaction in the public service." Journal of Management Analytics 7, no. 2: 253-280.
The purpose of this paper was to identify common themes from archival records related to innovation in the Australian Public Service (APS). A thematic analysis was conducted to review and evaluate archival records which consisted of transcripts from senior manager presentations at Innovation Month seminars from 2014 to 2018 and other related official documents. This empirical study addressed innovation from the leaders’ perspective, reflecting upon their experience. Analysing themes within archival records helped to gain insights from various perspectives of leaders on how they regard an innovation agenda for the APS. Three themes emerged from archival records: (1) innovation characteristics; (2) drivers of innovation; and (3) barriers to innovation. Synthesis of these drivers and barriers can provide important insights for senior APS managers on how they can enhance their organisations’ ability to innovate in order to respond to digital disruption challenges and opportunities. Variety of perspectives with leader’s perceptions informs about authors’ selection of the research question among consistent patterns and legitimates the salient themes as input for QSR NVivo 11.
Warit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart; Jirapon Sunkpho. Drivers and barriers to innovation in the Australian public service: A qualitative thematic analysis. Engineering Management in Production and Services 2019, 11, 7 -22.
AMA StyleWarit Wipulanusat, Kriengsak Panuwatwanich, Rodney A. Stewart, Jirapon Sunkpho. Drivers and barriers to innovation in the Australian public service: A qualitative thematic analysis. Engineering Management in Production and Services. 2019; 11 (1):7-22.
Chicago/Turabian StyleWarit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart; Jirapon Sunkpho. 2019. "Drivers and barriers to innovation in the Australian public service: A qualitative thematic analysis." Engineering Management in Production and Services 11, no. 1: 7-22.
Opportunities for replicating large data sets that have already been collected by government, and made available to the public to provide the possibility of statistical data analysis, are starting to emerge. This study examines the factor structure of ambidextrous culture for innovation. Survey data was extracted from the State of the Service Employee Census 2014 comprising 3,125 engineering professionals in Commonwealth of Australia departments. Data were analysed using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). EFA returned a two-factor structure explaining 61.1% of the variance of the construct. CFA revealed that a two-factor structure was indicated as a validated model (GFI = 0.99, AGFI = 0.98, RMSEA = 0.05, RMR = 0.02, IFI = 0.99, NFI = 0.99, CFI = 0.99, and TLI = 0.98). From the results, the two factors extracted as characterising ambidextrous culture for innovation were innovative culture and performance-oriented culture.
Warit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart. Statistical Data Analysis of Culture for Innovation Using an Open Data Set from the Australian Public Service. Computer Vision 2017, 10365, 78 -89.
AMA StyleWarit Wipulanusat, Kriengsak Panuwatwanich, Rodney A. Stewart. Statistical Data Analysis of Culture for Innovation Using an Open Data Set from the Australian Public Service. Computer Vision. 2017; 10365 ():78-89.
Chicago/Turabian StyleWarit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart. 2017. "Statistical Data Analysis of Culture for Innovation Using an Open Data Set from the Australian Public Service." Computer Vision 10365, no. : 78-89.
Workplace innovation enables the development and improvement of products, processes and services leading simultaneously to improvement in organisational performance. This study has the purpose of examining the factor structure of workplace innovation. Survey data, extracted from the 2014 APS employee census, comprising 3,125 engineering professionals in the Commonwealth of Australia’s departments were analysed using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). EFA returned a two-factor structure explaining 69.1% of the variance of the construct. CFA revealed that a two-factor structure was indicated as a validated model (GFI = 0.98, AGFI = 0.95, RMSEA = 0.08, RMR = 0.02, IFI = 0.98, NFI = 0.98, CFI = 0.98, and TLI = 0.96). Both factors showed good reliability of the scale (Individual creativity:α= 0.83, CR = 0.86, and AVE = 0.62; Team Innovation:α= 0.82, CR = 0.88, and AVE = 0.61). These results confirm that the two factors extracted for characterising workplace innovation included individual creativity and team innovation.
Warit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart. Workplace Innovation: Exploratory and Confirmatory Factor Analysis for Construct Validation. Management and Production Engineering Review 2017, 8, 57 -68.
AMA StyleWarit Wipulanusat, Kriengsak Panuwatwanich, Rodney A. Stewart. Workplace Innovation: Exploratory and Confirmatory Factor Analysis for Construct Validation. Management and Production Engineering Review. 2017; 8 (2):57-68.
Chicago/Turabian StyleWarit Wipulanusat; Kriengsak Panuwatwanich; Rodney A. Stewart. 2017. "Workplace Innovation: Exploratory and Confirmatory Factor Analysis for Construct Validation." Management and Production Engineering Review 8, no. 2: 57-68.
In the construction of an infrastructure project, completion delay is one of the major risks to the financial outlook of an infrastructure project under construction. During the construction phase, if the project is delayed, project managers can take specific actions to shorten the duration of certain activities on the critical path in order to restore the project to its original schedule. However, not all management actions to shorten the duration of activities are cost-effective: the cost of reducing some activities’ duration may exceed the savings. Risk that project managers cannot economically reduce through management feedback reactions should instead be transferred to third parties such as insurance companies that have risk pooling capacity. In this paper, we present a novel way of managing completion delay risk through “dynamic risk insurance” by combining a technique known as the envelope method with a stochastic-based Monte Carlo method. Two important features of this implementation of dynamic completion risk insurance are (1) a stochastic risk premium between the contractor and the surety over the course of construction and (2) evolution of the risk premium as a function of management feedback reaction. Finally, two illustrative examples, a BOT road and a commercial building, demonstrate how the proposed model may be applied in practice. The new model of dynamic risk insurance presented in this paper may improve risk management practice in large-scale construction projects that are loaded with uncertainty.
Nakhon Kokkaew; Warit Wipulanusat. Completion delay risk management: A dynamic risk insurance approach. KSCE Journal of Civil Engineering 2014, 18, 1599 -1608.
AMA StyleNakhon Kokkaew, Warit Wipulanusat. Completion delay risk management: A dynamic risk insurance approach. KSCE Journal of Civil Engineering. 2014; 18 (6):1599-1608.
Chicago/Turabian StyleNakhon Kokkaew; Warit Wipulanusat. 2014. "Completion delay risk management: A dynamic risk insurance approach." KSCE Journal of Civil Engineering 18, no. 6: 1599-1608.
Warit Wipulanusat; Jirapon Sunkpho. QUALITY ASSESSMENT IN PUBLIC SECTOR: A VIEW FROM PUBLIC SECTOR MANAGEMENT QUALITY AWARD. Proceedings of the 2013 (4th) International Conference on Engineering, Project, and Production Management 2013, 1 .
AMA StyleWarit Wipulanusat, Jirapon Sunkpho. QUALITY ASSESSMENT IN PUBLIC SECTOR: A VIEW FROM PUBLIC SECTOR MANAGEMENT QUALITY AWARD. Proceedings of the 2013 (4th) International Conference on Engineering, Project, and Production Management. 2013; ():1.
Chicago/Turabian StyleWarit Wipulanusat; Jirapon Sunkpho. 2013. "QUALITY ASSESSMENT IN PUBLIC SECTOR: A VIEW FROM PUBLIC SECTOR MANAGEMENT QUALITY AWARD." Proceedings of the 2013 (4th) International Conference on Engineering, Project, and Production Management , no. : 1.