Diversity in airline alliance portfolio configuration

Alliances in the airline industry operate as a basic strategy to stimulate competition and both the number and the types of alliances have increased over time. Each airline maintains alliances simultaneously with a variable number of partners. The set of airline's alliance partners constitutes its alliance portfolio. A central theme of these portfolios is the way in which partner selection improve performance. Is the alliance portfolio configuration based on either similar or different partners? We examine how the differences can arise from differences between the partners themselves, from resource complementarity, and from the partners structural positions in the network. The relations between these types of differences and whether they affect firm performance are studied. Codeshare alliances established between airline companies at a global level are analyzed to establish their effects on performance. In particular, the study comprises 135 alliance portfolios all of which from major airlines. The results suggest that structural homogeneity and complementarity improve performance and that alliance portfolio diversity favors network resource complementarity.     

Temporal configurations of European airline networks

The deregulation of the US domestic airline industry resulted in the reconfiguration of airline networks into hub-and-spoke systems. In contrast to the US airlines, airlines in Europe already operated spatially concentrated networks long before deregulation. This concentration at the national home-base was the outcome of bilateral traffic rights designated to the national carrier. With a few exemptions, however, most of these star-shaped networks were not coordinated in time. Transfer opportunities at most national airports only existed by accident. Only airports that were operated as gateways to Europe provided planned connectivity between intercontinental flights and European feeder services. The deregulation of the EU market stimulated a second phase of airline network restructuring. European airlines concentrated their networks by adopting or intensifying wave-system structures (‘banks’ to use the US term) in their flight schedules. This paper investigates these post-deregulation temporal concentrations in European aviation networks. The development and configuration of wave-system structures at European airline hubs is analyzed as well as the resulting transfer opportunities during the 1990s. It is found that a temporal concentration trend exists among European airlines with deregulation resulting in the adoption or intensification of wave-system structures by airlines. These wave-system structures, as well as overall traffic growth, have significantly stimulated the number of indirect hub connections. Airline hubs with wave-system structures generally perform better because of the increased indirect connectivity given the number of direct connections.     

Airline emissions charges and airline networks

Emissions charges are an effective tool to control aviation carbon dioxide emissions. This paper investigates how airline emissions charges affect a monopoly airline's network choice. By considering simultaneously fully-connected, hub-spoke and mixed networks, we find that the impact of emissions charges on airline network configuration depends crucially on some relevant parameters, for example, the marginal benefit of the reduction of schedule delays and the disutility of additional travel time of connecting flights. Welfare analysis shows a discontinuity in the network configuration from the social planner's perspective and an inefficiency related to the airline's choice on mixed network.     

欧美支线航空：家家有本难念的经

欧洲的航空公司行业从全球经济危机中复苏缓慢,支线航空公司行业也是如此。欧洲支线航空公司协会（ERA）代表了大约70家航空公司,2010年成员的客运运输量同比只增长了2．5％。欧洲机场的客运吞吐量在同期增长了4．2％。     

The impact of US–EU “Open Skies” agreement on airline market structures and airline networks

The gradual liberalization of international air transport has largely benefited the traveling public. Progress since the development of concepts such as “Open Skies” in the late 1970s as an alternative to the restrictive bilateral air service agreements that had effectively controlled most international air transport since the mid-1940s has been uneven and spasmodic. The recent move to open the North Atlantic more fully to competition has proved a particularly challenging task, and the agreement between the US and the European Union is still both partial and conditional. This paper offers an overview of the economics of the situation and provides insights into the reasons why it has developed in the way it has, the outcomes that we may expect from it, and some consideration of the wider, non-commercial, impacts that it may have.     

Mitigation of airspace congestion impact on airline networks

In recent years European airspace has become increasingly congested and airlines can now observe that en-route capacity constraints are the fastest growing source of flight delays. In 2010 this source of delay accounted for 19% of all flight delays in Europe and has been increasing with an average yearly rate of 17% from 2005 to 2010. This paper suggests and evaluates an approach to how disruption management can be combined with flight planning in order to create more proactive handling of the kind of disruptions, which are caused by congested airspace. The approach is evaluated using data from a medium size European carrier and estimates a lower bound saving of several million USD.     

China’s airline consolidation and its effects on domestic airline networks and competition

Air transportation in China has experienced tremendous growth and major reforms in the past three decades. While there is a large literature on airline liberalization, publications about China are limited. As China transforms from a centrally planned economy to a market economy, how closely has China followed the practice of liberalizing the airline industry seen in other countries around the world? This paper offers a review of air transportation development in China and compares China’s approach with other countries. In particular, this study examines the impact of the government-led airline consolidation of 2002 upon domestic network structure and competition.     

Restructuring Argentina's airline networks: Successes and challenges

Argentina's aviation networks underwent significant restructuring after the 2015 election of President Mauricio Macri. Historically constrained by poor aviation infrastructure, economic uncertainty, currency devaluations, labor unrest, comparatively weak passenger demand, and operational barriers to low-cost carriers (LCCs), Argentina's airline networks have experienced deep restructuring in both providers and network interactions. With less than 0.3 trips per capita in Argentina, compared to 3.0 in the mature U.S. aviation market, analysts argue that there is significant potential for moving bus and automobile travelers to airlines, and to expanding Argentina's airline connectivity profitably throughout the region. LCCs such as Flybondi, Norwegian, Air Europa, Sky, JetSmart, and others are challenging long-standing transportation relationships in the region and developing new routes for consumers. A set of interlinked questions aims to understand Argentina's changing aviation geography. Comparing O-D data from 1972, 1982, 1996, and 2019, the results indicate a significant reorganization of Argentinas domestic and regional network interactions, with modest adjustments to its global north-south connections. Challenges include outcomes of a recent change in Argentina's government and the long-term impact of the global COVID19 pandemic on the aviation system.     

A note on how to measure hubbing practices in airline networks

Benefits and costs associated to hubbing practices of airlines are still subject to much debate. In the previous literature, some standard spatial concentration indices have been proposed to measure it. However, we show that these indices are “ill-defined” because they do not take into account the salient characteristic of hubbing: connecting passengers. The purpose of this research is to present a new methodology which avoids the pitfalls of other methods. Our new methodology also analyzes the level of concentration of the connecting passengers studying two different dimensions: hub airports and routes. Finally, we apply our methodology to some US carriers.     

Connecting African urban areas: airline networks and intra-Sub-Saharan trade

Despite efforts to enhance the efficiency of the African air transportation sector through such actions the Yamoussoukro Decision, African represents less than 2% of the world’s air passenger kilometers. This is despite the fact that air transportation can act as a means of transporting traded goods directly (including the individuals that are the “product” of tourism) and provide complementary services of labor mobility for those engaged in the production of more bulky goods that are shipped by land and maritime modes. We examine the network of intra-Sub-Saharan African airline connections to highlight the differential access enjoyed by the region’s largest cities. Second, we develop a quantitative framework linking the availability of air connections to the main international trade flows in sub-Sahara Africa. Our findings suggest that, although there is a positive link between air transportation and economic development in Africa, the multilateral efforts at reducing institutional impediments to more open aviation markets have not produced significant results.     

Characterisation of airline networks: A North American and European comparison

This paper contrasts the North American and European air transport markets using the extensive Official Airline Guide Databases. The pattern of network development in the two continental regions is examined using data for 1996–2008. The top ten carriers in both regions are analysed closely in terms of network structures and the basic geographical characteristics of these networks are highlighted. In addition, different measures of air transport activity such as seating capacity, and number of movements and of routes are compared. Visualisations of carrier networks are used to highlight the different network strategies operated by low cost and full service carriers. European carrier networks display many significant differences to North American carrier networks. European carriers generally organise their networks around one or two key nodes within the member state in which they are registered and generally do not operate interactive, continental-wide, multiple hub-and-spoke networks as do North American carriers. European and North American low-cost carriers operate much more interconnected networks than full services carriers. Southwest Airlines stands out as operating a particularly highly interconnected network.     

The spatial and temporal dimensions of the interdependence between the airline industry and the Chinese economy

The airline industry contributes largely to the economic development of a region. At the same time, the fortunes of the industry can also be affected by regional economic change. This paper uses geographically weighted correlation analysis to investigate the spatial heterogeneity and temporal change of this interdependence as seen in China over the years from 2005 to 2016. The results show that the interdependence between the airline industry and provincial economies is non-stationary, generally with a spatial variation along the east-west axis across China's provinces. Further, the temporal change in the interdependence was affected by specific economic changes, such as the global crisis of 2008, when it weakened. Specifically, air passenger activities in the eastern provinces were more sensitive to some economic changes of 2012, while air freight activities in the western and central provinces were more sensitive to the global economic crisis of 2008. The size of urban agglomeration and regional GDP also influence the spatial heterogeneity of this interdependence with weaker links as GDP increases. It is possible that liberalization of the airline industry could enhance the interdependence in advanced regions. Thus, our results provide significant policy implications for a joint focus on the development of the regional economy and the airline industry.     

The dynamics of airline alliances

This paper explains the dynamics of airline alliances. Using a system dynamic approach we shall first describe the driving forces behind the formation of alliances before going on to examine the inherent stability of alliances, both internally and externally. Understanding the dynamics of alliances can be useful in two ways. Outwardly, it can help in the thinking up of future scenarios which is something that is especially important to airlines that are looking for an appropriate alliance group but also for established groups looking for new members. Inwardly, such understanding is crucial as far as existing members of alliance groups are concerned when it comes to managing the alliance and achieving better performance.     

The future of airline distribution

This paper provides an overview of the changes taking place in airline distribution and evaluates the impact of these changes on the key stakeholders; the airlines, travel agents, global distribution systems companies and corporate travellers. Conclusions as to the future of airline distribution are drawn. It is likely that global distribution systems deregulation will lead to the fragmentation of airline inventories across different distribution channels. Airlines will seek to increase the proportion of sales they make directly on their own website, thereby reducing their costs. Travel management companies will need to demonstrate their value to corporate clients clearly. Corporate clients are most concerned about ensuring access to the widest possible range of airline products and tariffs, at the same time as distribution costs are removed from the value chain.     

Leisure travel in Europe and airline business models: A study of regional airports in Great Britain

Tourism and air transport are explicitly linked especially in the context of leisure traffic. This paper highlights this relationship by focusing on the impact of the three main airline business models (traditional scheduled, charter and low-cost) on regional airports using Britain as a case study. The panel data econometric results show that despite the current perception, low cost carriers are not the only ones to contribute significantly to airport aeronautical and non-aeronautical revenue. This observation has important policy implications and calls for transparency in airport subsidies as argued in the conclusion.     

The geographic effects of US airline alliances

Code-share agreements in the airline industry allow participants the opportunity to offer service to destinations they do not physically serve. This paper concentrates on the recently proposed domestic code-share agreements between United/Delta, Continental/Northwest, and American/US Airways, six of the largest commercial carriers in the United States. Changes in destinations served as well as geographic regions of dominance based upon market share are examined. The result is a clearer view of regions of dominance for each alliance in the United States. The proposed United/Delta alliance shows an expansion across the entire United States. The Continental/Northwest alliance allows the carriers to compete with the “Big Three”. The American/US Airways proposed alliance appears to benefit US Airways (US) more than American.     

Fifth freedoms and airline alliances. The role of fifth freedom traffic in an understanding of airline alliances

An analysis of fifth freedom operations in the Single European Aviation Market identified trends and patterns, which were found to be fundamental to understanding the rationale for airline alliances. Priority issues in achieving the sought after market coverage included the formation of alliances, the achievement of higher corporate strength levels and the quest for lasting and sustainable market positions. The development of a Route/Network Portfolio Management matrix permitted the exploration of strategies available to airlines for the creation of effective alliances towards these ends.     

Megacorridors in north-west Europe: issues for transnational spatial governance

Megacorridors connecting the major urban regions in north-west Europe represent a major challenge for spatial governance. Collective action can only influence developments in these areas when it is innovative. Success depends on strong intersectoral, public–private, cross-border and central-local coordination. This paper discusses the various challenges by grouping them into three categories: the creation and circulation of relevant knowledge, translation of policy objectives into planning concepts and the conversion of these concepts into action.     

The impact of hubbing concentration on flight delays within airline networks: An empirical analysis of the US domestic market

This paper explores the relationship between hubbing activities and flight delays in the United States from an airline-specific network perspective. Airline hubbing is measured with the Hubbing Concentration Index. We estimate the impact of hubbing behavior on delays, using three measures of delay, two based on delay against schedule, and the third based on buffer-corrected excess travel times. A significant (and positive) influence of hubbing concentration can only be found for the latter delay indicator. We conclude that airlines use buffer times to mitigate passenger-perceived delays against schedule that would, without buffers, arise from more complex network operations.