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    Study of the robustness of the European air routes network  Open access

     Lordan Gonzalez, Oriol; Florido, Joel; Sallán Leyes, José María; Fernández Alarcón, Vicenç; Simo Guzman, Pep; Gonzalez Prieto, David
    Date: 2014-02-26
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    In this working paper we make analysis on flight flow network structure of Europe. The aim of this study is to analyze the robustness of the European civil European air transportation network from the perspective of the theory of complex networks. This study is based on analyzing the behavior of the network when its nodes (airports) are removed by random attacks and deliberate attacks. The selection of nodes on deliberate attacks is based on four criteria: degree, betweenness, pagerank and eigenvector. This study aims to contribute to the understanding of the logistics network of European commercial flights, analyzing their strengths and weaknesses. The calculation of network statistical indicators as degree and betweenness distribution reveals that the flight flow network has the small-world characteristics and scale-free property.

  • Influencia de efectos contextuales y rasgos psicológicos sobre opciones señuelo: revisión de la literatura y propuestas de investigación  Open access

     Gonzalez Prieto, David; Lordan Gonzalez, Oriol
    Intangible capital
    Date of publication: 2013-03
    Journal article

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    Purpose: The purpose of this paper is to develop future research proposals aiming to contribute the extant theory which explains decoy effects. Design/methodology/approach: Firstly, a review of the existing literature about decoy options and its interactions with contextual effects that could affect their performance is presented. Next, two research proposals are presented: the introduction of a double decoy choice set and the evaluation of decoy effect under different levels of cognitive effort in a purchasing process. Findings and Originality/value: For the research proposal concerning double decoy choice sets, different hypothesis are introduced based on the different theories aiming to explain the effect of simple decoy choice sets. This hypothesis predict different outcomes for the same experimental design, fact that could provide further support for at least one of the current explanations for decoy effects. Regarding the effect of decoy options under different levels of cognitive effort, implications for experimental design for sequential purchasing process are expected. Especially for those designed with complex options, with many steps or high number of options. Originality/value: Two new research proposal approaches are presented in order enhance the current theory. Moreover, both have managerial implications concerning the real usage of decoy options in reduced choice sets as well as in sequential purchasing processes.

    Objeto: El objetivo del artículo es desarrollar propuestas de investigación cuyos resultados contribuyan a la teoría existente sobre el efecto decoy Diseño/metodología: Primeramente, se presenta una revisión de la literatura sobre el efecto decoy y las interacciones con otros efectos contextuales que sean susceptibles de afectar a su funcionalidad. Después, se presentan dos propuestas de investigación: la introducción del doble decoy dentro de un mismo conjunto de opciones y el desempeño de opciones decoy bajo distintos niveles de fatiga cognitiva a lo largo de un proceso de compra. Aportaciones y resultados: En relación a la propuesta de investigación del doble decoy, se introducen distintas hipótesis acerca de su funcionamiento, generadas a partir de las distintas teorías existentes. Estas hipótesis predicen distintos comportamientos para el mismo diseño experimental. Este hecho reforzaría a al menos una de las vigentes explicaciones acerca del funcionamiento de opciones decoy. En relación a la proposición acerca del efecto decoy bajo distintos niveles de fatiga cognitiva, se esperan implicaciones relevantes para el diseño de procesos de compra que incorporen múltiples opciones, varios pasos a lo largo del proceso de compra u opciones complejas. Valor añadido: Ambas propuestas de investigación tienen como objetivo contribuir y mejorar la teoría existente sobre opciones decoy. Además, ambas aportarán información importante de cara al uso real de opciones decoy en procesos de compra.

    Purpose: The purpose of this paper is to develop future research proposals aiming to contribute the extant theory which explains decoy effects. Design/methodology/approach: Firstly, a review of the existing literature about decoy options and its interactions with contextual effects that could affect their performance is presented. Next, two research proposals are presented: the introduction of a double decoy choice set and the evaluation of decoy effect under different levels of cognitive effort in a purchasing process. Findings and Originality/value: For the research proposal concerning double decoy choice sets, different hypothesis are introduced based on the different theories aiming to explain the effect of simple decoy choice sets. This hypothesis predict different outcomes for the same experimental design, fact that could provide further support for at least one of the current explanations for decoy effects. Regarding the effect of decoy options under different levels of cognitive effort, implications for experimental design for sequential purchasing process are expected. Especially for those designed with complex options, with many steps or high number of options. Originality/value: Two new research proposal approaches are presented in order enhance the current theory. Moreover, both have managerial implications concerning the real usage of decoy options in reduced choice sets as well as in sequential purchasing processes.

  • Effects of the addition of simple and double decoys on the purchasing process of airline tickets

     Gonzalez Prieto, David; Sallán Leyes, José María; Simo Guzman, Pep; Carrion Martí, Raimon
    Journal of air transport management
    Date of publication: 2013-06
    Journal article

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    Air ticket purchases can be considered to be based on sequential decision-making processes with a limited number of alternatives with clearly identified product attributes. With this scenario, decoy contextual effects could potentially be useful in increasing the profitability of each choice set through driving the attention of the users to a particular alternative by changing their perceptions, such as the perceived attractiveness of particular options, to benefit one specific alternative. This study validates the efficiency of the addition of decoy options in increasing the proportion of users who select the target option in a choice set and introduces, theoretically and empirically, the use of double decoys. Three distinct hypothetical choice sets are configured using two different types of decoy.

  • Preliminary study of the full-service and low-cost carriers network configuration

     Lordan Gonzalez, Oriol; Bigorra, Jordi; Gonzalez Prieto, David; Sallán Leyes, José María; Simo Guzman, Pep
    Air Transport Research Society Annual Conference
    Presentation's date: 2013-06-27
    Presentation of work at congresses

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    Network strategies used by airline carriers have been a recurring theme in research into air transport. The aim of this paper is to investigate the interrelationship between the different operational characteristics of the airline and its route network configuration. For this purpose, it will analyzed the two main airline carrier typologies - Full-Service and Low-Cost carriers - using empirical models developed on the complex network research and relate them to their business model. It has been developed a preliminary study with multiple airline case studies around the world and been found that, just in Europe, one can differentiate between Full-Service and Low- Cost Carriers by complex network analyses. In this process, it has been also found that new concept of Low-Cost Carriers, as Vueling, have networks properties more similar to Full-Service Carriers. The analysis carried out in this research can help to assess the evolution of the strategies of airline carriers, and has also operational implications, since the configuration of an airline route network can determine its resilience to attacks and errors.

  • A panel data model of passenger air transport demand

     Lordan Gonzalez, Oriol; Setien, Marta; Gonzalez Prieto, David; Sallán Leyes, José María; Simo Guzman, Pep
    Air Transport Research Society Annual Conference
    Presentation's date: 2013-06-27
    Presentation of work at congresses

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    Considering the low contribution margins for commercial aviation, it is vital for airline carriers to make a good forecast of changes in demand for a particular region. For this purpose, it has been analyzed the causal relations established between both demographic and regional economic characteristics related to commercial passenger air traffic in Europe. It has been constructed a panel data model considering three main groups of variables: demographic, economic and tourist attractiveness. Preliminary results showed that Eastern andWestern European countries respond to different models. Although the significant explanatory variables are the same in both regions, the coefficients are significantly lower in Eastern European countries. For this reason it has been conduct two parallel models for Eastern and Western European countries that fit with the actual passenger demand in each country with significant results. The proposed models could help airlines to more accurately predict passenger demand in a particular region as well as to decide where to expand or open new routes.

  • Robustness of an airline route network

     Lordan Gonzalez, Oriol; Escorihuela, Nuria; Gonzalez Prieto, David; Sallán Leyes, José María; Simo Guzman, Pep
    Air Transport Research Society Annual Conference
    Presentation's date: 2013-06-26
    Presentation of work at congresses

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    Network strategies used by airline carriers have been a recurring theme in air transport research. Disruption of communication via air routes by intended causes (e.g., terrorist attack on an airport) or unintended (e.g., weather) could be crucial for the operations of airlines affected. Airlines should be able to reduce the effects of such interruptions in order to ensure good communication through air transport (i.e., maximize the robustness of their network at a reasonable cost). To do this, a complex network approach provides us with the network robustness analysis. The literature review of the study of air transport route networks through an analysis of complex networks has highlighted a lack of contributions to the study of the dynamic behavior of such networks which is, however, being analyzed for other transport networks or communication systems. Since the airline carriers have different network strategies - especially considering the use of hub airports where traffic intensifies and therefore exists greater risk to an attack on the hub - it can be seen how the airline carriers respond to intended and unintended airport closures depending on their network configurations.

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    Análisis de modelos de ecuaciones estructurales mediante el paquete Lavaan  Open access

     Sallán Leyes, José María; Fernández Alarcón, Vicenç; Simo Guzman, Pep; Lordan Gonzalez, Oriol; Gonzalez Prieto, David
    International Conference on Industrial Engineering and Industrial Management
    Presentation's date: 2012-07
    Presentation of work at congresses

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    El análisis de ecuaciones estructurales es una técnica para evaluar modelos con relaciones complejas entre variables (path analysis), así co-mo modelos con variables latentes. Un caso especialmente interesante de aplica-ción es el análisis factorial confirmatorio, que permite evaluar la validez de cons-tructo de escalas de medida. En este artículo se presenta el paquete de R lavaan, que permite evaluar con facilidad modelos de ecuaciones estructurales. Se reporta información sobre la sintaxis del modelo, así como de las posibilidades del paque-te. Structural equation modeling is a technique to asses models with complex relationships between variables (path analysis), and models with la-tent variables. An especially interesting case is confirmatory factor analysis, a technique that allows assessing the construct validity of measurement scales. In this paper the lavaan package of R is presented, which easily allows testing struc-tural equation models. Information about the model syntax is reported, and of the possibilites of the package.

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    Estudio del actual proceso de reestructuración bancario en España mediante el uso de las consejerías cruzadas  Open access

     Simo Guzman, Pep; Sicilia Espín, Carlos; Lordan Gonzalez, Oriol; Fernández Alarcón, Vicenç; Gonzalez Prieto, David; Sallán Leyes, José María
    International Conference on Industrial Engineering and Industrial Management
    Presentation's date: 2012
    Presentation of work at congresses

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    El actual proceso de reestructuración bancario en España está concentrando las entidades financieras mediante fusiones y absorciones. En este contexto, las consejerías cruzadas entre las distintas entidades en proceso de reestructuración pueden estar funcionando como mecanismo de coordinación de los procesos de fusión y absorción. Por esta razón, analizamos la red longitudinal de consejerías cruzadas desde 2006 a 2010 de bancos y cajas de ahorros españoles. Los resultados muestran que, en múltiples casos, las fusiones y absorciones vienen precedidas de la compartición directa de consejeros entre las distintas entidades involucradas. The restructuring process in Spain is concentrating banking financial institutions through mergers and takeovers. In this context, interlocking directorates between entities in the process of restructuring may be functioning as a coordinating mechanism of the processes of mergers or takeovers. We analyse the longitudinal network of interlocking directorates from 2006 to 2010 of Spanish banks and saving banks. The results show that, in many cases, mergers and takeo-vers are preceded by direct interlocking directorates among the entities involved.

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    Estudio de la red accionarial de las empresas del IBEX-35  Open access

     Sicilia Espín, Carlos; Simo Guzman, Pep; Sallán Leyes, José María; Lordan Gonzalez, Oriol; Fernández Alarcón, Vicenç; Gonzalez Prieto, David
    International Conference on Industrial Engineering and Industrial Management
    Presentation's date: 2012-07
    Presentation of work at congresses

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    La adquisición de participaciones accionariales de otra empresa puede tener influencia sobre la gestión de ésta. Por otro lado, la ubicación de la sede de las grandes empresas en una comunidad autónoma o, empresas con influencia en éstas, puede ser relevante para la comunidad autónoma. En este con-texto, analizaremos mediante técnicas de redes sociales las propiedades estructura-les de la red de participaciones accionariales de las empresas pertenecientes al IBEX-35 y analizaremos su distribución sectorial por comunidades autónomas. El estudio muestra una gran concentración de participaciones accionariales entre las empresas más importantes del IBEX-35 y Madrid aparece como sede central de España, seguida por Catalunya y el País Vasco. The restructuring process in Spain is concentrating banking financial institutions through mergers and takeovers. In this context, interlocking directorates between entities in the process of restructuring may be functioning as a coordinating mechanism of the processes of mergers or takeovers. We analyse the longitudinal network of interlocking directorates from 2006 to 2010 of Spanish banks and saving banks. The results show that, in many cases, mergers and takeo-vers are preceded by direct interlocking directorates among the entities involved.

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    Journal of Airline and Airport Management: taking off on an exciting journey into air transport research  Open access

     Gonzalez Prieto, David; Lordan Gonzalez, Oriol; Sallán Leyes, José María; Simo Guzman, Pep; Enache, Mihaela; Fernández Alarcón, Vicenç
    Journal of Airline and Airport Management
    Date of publication: 2011-11
    Journal article

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    We are pleased to introduce this first and inaugural issue of the first volume of the Journal of Airline and Airport Management (JAIRM). JAIRM is an international journal that proposes and fosters discussion on the theory and application in all areas of air transport, including (but not limited to) air transport and globalization, airline and airport management. We are interested in issues related to production, logistics, operations, marketing, policy and regulation, information systems, project management, quality, as well as regional development, economics, organizational behaviour, finance and accounting in air transport research

  • The business prestige: A preliminary study based on interlocks within companies [El prestigi empresarial: Anàlisi a través de les conselleries creuades]

     Sicilia Espín, Carlos; Lordan Gonzalez, Oriol; Gonzalez Prieto, David
    Intangible capital
    Date of publication: 2011-10
    Journal article

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    Estudio de las interconexiones entre aerolíneas pertenecientes a una misma alianza aérea mediante técnicas de redes sociales  Open access

     Lordan Gonzalez, Oriol; Sallán Leyes, José María; Simo Guzman, Pep; Gonzalez Prieto, David; Fernández Alarcón, Vicenç
    International Conference on Industrial Enginnering and Industrial Management
    Presentation's date: 2011-09
    Presentation of work at congresses

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    Los efectos decoy y marca en las estrategias de venta de las aerolíneas comerciales  Open access

     Gonzalez Prieto, David; Sallán Leyes, José María; Simo Guzman, Pep; Lordan Gonzalez, Oriol; Fernández Alarcón, Vicenç
    International Conference on Industrial Engineering and Industrial Management. Congreso de Ingeniería de Organización
    Presentation's date: 2011-09
    Presentation of work at congresses

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    Esta investigación es una contribución a la evolución de la teoría mediante la aportación de dos elementos significativos. El primero es la comprobación de la existencia de posiciones de decoy inferiores que no producen efecto alguno sobre la opción target reforzando la idea de que los procesos que gobiernan los efectos contextuales, value shift y value added, se producen de manera simultánea y se compensan el uno al otro anulando el efecto del decoy. Además, en el presente estudio se propone una solución para la aplicación de estrategias de venta que incorporan decoys en la venta de billetes de avión. Del mismo modo, se evalúa la interacción que presenta un diseño concreto de decoy con el efecto marca. Es decir, si la introducción de la variable marca dentro de los distintos conjuntos opciones originales-decoy tiene implicaciones significativas.

  • Los efectos decoy y marca en la estrategia de venta de una aerolínea comercial low cost

     Gonzalez Prieto, David; Sallán Leyes, José María; Simo Guzman, Pep; Lordan Gonzalez, Oriol
    Congreso de la Red Iberoamericana de Investigación en Transporte Aéreo
    Presentation's date: 2011-10
    Presentation of work at congresses

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    La situación actual del transporte aéreo y de la aviación comercial en concreto, dónde las compañías deben adquirir un fuerte posicionamiento, asegurando un segmento concreto de mercado; ha conducido a un aumento de la necesidad de obtener datos sobre la viabilidad de la implementación de técnicas de marketing que incorporen opciones Decoy. La finalidad es obtener rendimiento de la tendencia que actualmente presenta el mercado: la personalización del billete, "el billete a medida". Esta investigación es una contribución al desarrollo de estrategias de pricing que aprovechen la presencia de múltiples opciones en el conjunto de alternativas disponibles. Además, se comprueba la existencia de posiciones decoy inferiores que no producen efecto alguno sobre la opción target reforzando la idea de que los procesos que gobiernan los efectos contextuales, value shift y value added, se producen de manera simultánea y se compensan el uno al otro anulando el efecto del decoy. Además, en el presente estudio se propone una solución para la aplicación de estrategias de venta que incorporan dos tipos de opciones decoy en la venta de billetes de avión.

  • Estudio de la red de acuerdos de código compartido en las grandes alianzas aéreas

     Lordan Gonzalez, Oriol; Sallán Leyes, José María; Simo Guzman, Pep; Gonzalez Prieto, David
    Congreso de la Red Iberoamericana de Investigación en Transporte Aéreo
    Presentation's date: 2011-10
    Presentation of work at congresses

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