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Modeling the Factors of Productivity in Airline Industry in India: A Hybrid TISM-P and Fuzzy-MICMAC Approach

Abstract

The present study explores the productivity drivers of the airline industry in India for their national and international performance. Interpretive structural modeling with polarity (TISM-P) approach is opted for exploring the interrelationships among productivity drivers of the airline industry by considering the experts’ inputs. The study identified 17 factors driving the productivity of the airline industry, and experts’ inputs had placed them in nine levels using a TISM-P approach. Fuzzy-MICMAC (Matrice d’impacts croisés multiplication appliquée á un classment) analysis further has classified these 17 factors into the following four groups: autonomous, dependent, linkage, and independent group. Also, it is observed that refining productivity issues have increased the airline industry’s export performance. The airlines’ administration can plan the short-term objectives by considering the independent factors and long-term policies by focussing on the linkage and dependent factors for improving the overall productivity and export performance.

Introduction

With the opening up of the skies by the Indian Government, the aviation industry has undergone a rapid transformation. Srivastava and Chaurasia (2015) proclaim that previously, the Indian aviation sector was primarily a government-owned industry, but now it is dominated by most of the private players. With the intense competition in the aviation industry, airlines need to improve their performance to sustain themselves in the market for a long time. The exports and financial performance of the airline industry in India in the last decade have been highlighted in Table A1, (given in supplementary file). Barbot et al. (2008), and Arulraj and Annamalai (2020) assert that productivity has been the central importance of competitiveness and world prosperity since the beginning of industrialization, but describing the specific industry’s productivity function is challenging (Arulraj & Annamalai 2020). Pekuri et al. (2011) have identified productivity as a critical driver for measuring an organization’s performance. In the contemporary turbulent business situation, firm operational excellence has become of utmost significance for gaining international competitiveness (Gelmez et al., 2020). Sushil and Garg (2019) state that export performance could be used as a surrogate measure for international competitiveness. Vasigh and Fleming (2005) have analyzed airlines’ efficiency and effectiveness through the total factor productivity (TFP) method-based utilization of input resources.

Table 1 Factors affecting the productivity of the airline industry

Though a lot of work has been conducted on airlines’ productivity, but very few have tried to develop a relationship between the factors associated with airlines’ productivity and competitiveness. Moreover, the recent hit by the COVID-19 outbreak has made the situation worst for the aviation sector, where most of the routes have been either cancelled off or operating with limited capacity. Hence, the operational competitiveness of the airline industry in India needs thorough revision and pinpoints the main productivity drivers to enhance the overall performance (Arulraj & Annamalai, 2020). The present work has attempted to fulfil that void by modelling the selected factors related to airlines’ productivity. This model would help airlines’ administration identify the strategically more significant factors for an airline. The contemporary study has tried to look for the following research questions:

  1. (i)

    What are the various factors affecting the productivity and competitiveness of an airline?

  2. (ii)

    How are the selected factors related to each other?

  3. (iii)

    How can these selected factors be classified according to their driving and dependence in the developed model?

To answer the above research questions, contemporary research aims to target the following objectives:

  • To identify and prioritize the factors affecting the productivity of the airline industry.

  • To establish the interaction among the factors using interpretive structural modeling with polarity (TISM-P).

  • To classify the selected factors into four quadrants based on their driving power and dependence using Fuzzy-MICMAC analysis.

Factors Affecting Productivity of the Airlines Industry

Export Performance of the Airline Industry in India

India is the third-largest national aviation market globally and is likely to overtake U.K. in the coming years (IBEF reports, 2020). As per the IBEF reports, foreign investment of up to 49% is allowed in the airline industry in India. International passengers for Indian airlines have increased to 69 million in 2019 from 65.48 million in 2018. International passengers constitute nearly 20% of total passengers, and international freight traffic constituted roughly 60% of total freight traffic in 2020. For this reason, its forex earnings and export performance has improved a lot in the past decade. Figure 1 portrays the air transport services’ total forex earnings/total income for financial years 1991–1992 to 2019–2020. Air Transport Services includes airlines industry and its associated industries. From the Fig. 1, it can be inferred that the total income and forex earning of the Air Transport Services in India have increased over the years. In this study, the factors affecting the productivity of airline industry in India is only considered. This research aims to look into the export performance of the four Airlines from India:(i) Air India Ltd., (ii) Interglobe Aviation Ltd, (iii) SpiceJet Ltd, and (iv) Go Airlines India Ltd. Table A1 (given in supplementary file) illustrates the financial overview and export performance for the previous decades of the airlines mentioned above.

Fig. 1
figure1

Source: Developed based on data accessed from CMIE Prowess Database, last accessed on 29th Nov., 2020 at prowessdx.cmie.com)

Trends in Total Income and Forex Earning for all Air Transport Services in India (in Billion INR) (

Productivity Factors of Airline Industry in India

An extensive literature review was done, and many experts were consulted to identify the factors affecting the productivity of airline industry in India. The identified enablers of operational excellence were examined and discussed in the four brainstorming sessions held with the experts working in the airline industry in India (Air India, SpiceJet, HAL, Indigo). The brainstorming sessions were completed in 42 days, starting from July 2020 to August 2020.The selected 17 factors affecting productivity in the airline industry are explained in Table 1. Thirty experts of considerable knowledge and experience in the concerned field were selected (experts’ profile has been shown in Table A2 given in supplementary file).

Methodology and Application

The TISM-P approach establishes the interplay among the identified factors and throws light on the relationship among the select factors (Garg & Sushil, 2021). This approach helps in identifying the most critical factors in the research. Fuzzy-MICMAC further assists in classifying the factors depending upon their driving and dependence power. The Fuzzy-MICMAC approach would make the analysis more specific.

Total Interpretive Structural Modeling-Polarity (TISM-P)

TISM is an interpretive and qualitative method that aids in apprehending complex and poorly enunciated problems in a defined and organized form (Thakur, 2020; Dhir et al., 2021). The modified TISM-P is a better approach that incorporates polarity in the established relationships (Sushil, 2018).

Steps Involved in TISM-P Methodology

Step 1: The present study has identified various factors affecting airlines’ productivity through a literature survey and opinions from industry veterans.

Step2: Then, contextual relationships among various factors and outcome factors related to productivity in the airline industry have been examined by brainstorming sessions held with the experts.

Step 3: After that, a reachability matrix with polarity is developed to reflect each factor’s influence on the other factor (see Table 2). The ‘+’ sign signifies in Table 2 that ‘X’ is influencing ‘Y’ positively, and the ‘-’ sign infers that ‘X’ is influencing ‘Y’ negatively. After that, the polarity has been removed from the final reachability table for further calculations (for more details, see Sushil, 2018).

Table 2 Reachability matrix with polarity for the productivity of airlines industry

Step 4: After that, the partitioning of the airline industry’s productivity factors is done (Refer to Table A3 given in supplementary file). A hierarchical relationship model is constructed, and only significant transitive links are kept.

Step 5: Finally, the developed TISM model with incorporated polarity is checked for conceptual inconsistency, and if required, modifications are done (see Fig. 2).

Fig. 2
figure2

TISM-based model for airline productivity

Fuzzy-MICMAC Analysis

Fuzzy-MICMAC analysis helps to scrutinize the factors depending upon their driving and dependence powers in the developed model (Singh & Sushil, 2013). MICMAC analysis classifies the factors into four quadrants based on the binary relationships that have been defined in the reachability matrix. The binary relationship shows the presence or absence, based on 1 and 0 scores, respectively. Fuzzy-MICMAC analysis aids in explaining the strength of relationships among various factors on 0–1 scale (0—no, 0.1—negligible, 0.3—low, 0.5—medium, 0.7—high, 0.9—very high, 1—full). Thus, fuzzy numbers describing the probable interactions among all the selected factors make the MICMAC analysis more sensitive. Thus, fuzzy MICMAC would help the decision-makers to interpret the results more precisely. The fuzzy numerical value is levied on the binary direct relationship matrix and transformed into FDRM (shown in Table A4 in supplementary file). For computing the fuzzy indirect relationship matrix, the developed FDRM matrix is multiplied repeatedly until all the hierarchy factors’ drive and dependence power hierarchy factors’ driving and dependence powers get stable. The multiplication of a fuzzy matrix will always result in a fuzzy matrix only (Thakur & Anbanandam, 2016a, 2016b).

$$ X \, * \, Y = \max \, \left[ {\min \, \left( {x_{ik} , \, y_{kj} } \right)} \right], $$
(1)

where, X = [xik], Y = [ykj], X and Y are fuzzy matrices.

After finding the stabilized matrix, the driving and dependence powers for each factor have been computed. Dependence power has been calculated by taking the sum of corresponding row values for each factor, and dependence power has been computed by summing all values in the corresponding column. Factors are arranged following their driving and dependence power, as shown in Table 3.

Table 3 Stabilized Fuzzy-MICMAC matrix for factors of productivity of the airline industry

Results and Discussions

This conceptual model would assist in identifying the factors that need to be focused on to improve airlines’ operational excellence. For instance, in our research, outsourcing, training program, alliance, quality of the process, resource allocation is critical drivers that need to be paid special attention to improve the operational excellence of an airline. Figure 3 portrays the seventeen factors on a two-dimensional graph: dependence power and driving power. Fuzzy-MICMAC analysis has categorized these factors into four groups based on polarity of ‘Driver power’ and ‘Dependence’ as shown in Fig. 3: Group 1 (autonomous group), Group 2 (dependent group), Group 3 (linkage group), and Group 4 (independent group).

Fig. 3
figure3

Analysis of driving and dependence power of factors of productivity

Group I: Weak driving and dependence power: The factors in this cluster are debarred from the developed TISM model, and they are identified as the autonomous group. In this research, no factor appeared in the first quadrant.

Group II: Weak driving and strong dependence: The second quadrant factors have a strong dependence power and less influence on other factors. In the present study, the following factors fell in this quadrant: network structure, frequency of service, available seat mile, distribution channel, frequent traveling scheme, revenue passenger mile. Therefore, the second group factors should be given lesser priority, and airlines’ administrators should critically explore the dependence power of the related factors while formulating strategies.

Group III: Strong driving and dependence power: In this research, six factors are having strong driving and dependence power, namely: training program, quality of process, technological advancement, alliance, resource allocation, operating cost, maintenance. The above-stated six factors lie in the middle of the conceptualized model and should be handled with the utmost care while formulating policies.

Group IV: Strong driving and weak dependence power: Group IV: Strong driving and weak dependence power: The following factors are identified as independent variables: business model, outsourcing, ownership and control, and labor union. Airlines’ policy-makers should focus primarily on these factors in the first stage, and these factors need to be on top priority while developing strategy.

Utility of the Presented Model

The present research has developed a conceptualized model for the factors affecting the productivity of airline industry in India. TISM model kept the factors (outsourcing, ownership control, and business model) at the hierarchy’s base, and these factors are essential to the airline industry’s operational excellence. Revenue passenger mile is our outcome factor and is placed at the top of the developed model. Figure 3 divides the selected factors into four clusters based on their driving and dependence powers obtained from the fuzzy-MICMAC analysis. This clustering creates insights for airline administrators so that they can proactively deal with the above-selected factors.

TISM model has placed the factors’ Business model’ ‘Outsourcing’, ‘Ownership and control’, ‘Training program’, ‘Alliance’ ‘Labor Union’, and Technological advancement’ at the hierarchy’s base, showing that these factors have the highest driving power and are vital for improving the operational performance of airline industry in India. Fuzzy-MICMAC has also validated that these factors are the essential pillars for enhancing an airlines’ operational excellence. Sengur and Sengur (2017) and Thakur and Mangla (2019) assert that business model innovation creates the value proposition, including resource allocation, designing employees’ training programs, technological development, minimizing operational costs, deciding on the network structure, and many more. Wan et al. (2009) also confirmed in their study that alliance decides the network structure of an airline. Byles (2007) observes that agreements such as “EU-US Open Skies” bring stiff competition to non-members where Virgin Atlantic, United Airlines, British Airways, and American Airlines are allowed to fly between the United States and London’s Heathrow airport and vice versa. Chong (2007) studied Singapore Airlines and observed that training plays an essential role in infusing corporate values.

The factors that lie in the middle of the hierarchal model include: ‘Quality of process’, ‘Resource allocation’, ‘Operating cost’, ‘Maintenance’, ‘Available seat mile’, ‘Network structure’, and ‘Frequency of service’. Fuzzy-MICMAC analysis has also placed these factors in the third quadrant depicting them as linkage factors. These five factors are having high driving as well as high dependence powers. These are linkage factors that are influencing and being influenced by other factors in the system. Dominic and Jati (2011) examined many quality dimensions in five Asian carrier flag airlines and noticed that the process quality positively impacts airlines’ operational excellence. IndiGo has managed to achieve high aircraft utilization by effectively using its resources. May and Barry (2011) proclaim that an airline with a higher number of seat miles would earn more revenue per passenger mile. The following factors are placed at the top of the hierarchy in the developed TISM model ‘Frequent traveling scheme’, ‘Distribution channel,’ ‘Revenue passenger mile’. Fuzzy-MICMAC analysis also confirmed the results from the empirical investigations and classified these factors into the dependent group. While formulating any strategy to improve an airline’s operational excellence, these second group factors should be given lesser priority compared to the other factors. The top management should efficiently utilize these input resources and follow a holistic approach to improve the operational excellence of the airline industry in India.

Conclusion

To gain international market share, airlines should focus on improving their operational excellence. Therefore, the research’s primary objective was to identify the factors affecting the airline industry’s productivity issues to improve the competitiveness of an airline. The study has identified the interaction among the 17 factors affecting the operational excellence of the airline industry using interpretive structural modeling with polarity (TISM-P). The selected factors are classified into four clusters based on their driving power and dependence using Fuzzy-MICMAC analysis. The study identified that factors identified that business model, ownership and control, training, alliance are the significant factors that need to be focused on to improve the operational excellence of an airline. This research would help top management of the airline industry in formulating the strategy to increase the overall system’s efficiency and effectiveness.

Contemporary research has few limitations, and these open up opportunities for the future scope of the study. First, the developed model is built by reviewing select writings and is based upon the inputs given by a limited number of experts; hence biasedness in collecting opinion may be there. Inadequate linkage of drivers of productivity with relevant factors of competitiveness may be a major limitation. One topic of high potential for future research can be deeper analysis of competitiveness dynamics using structured frameworks such as “Competitiveness Assets-Processes-Performance (APP)” (Momaya, 2001) to find options to improve service and export competitiveness. This model could be further validated using the structural equation modeling technique (SEM).

Key Questions Reflecting Applicability in Real Life

  1. 1.

    What are the various factors affecting the productivity of an airline?

  2. 2.

    How are the selected factors related to each other?

  3. 3.

    How can these selected factors be classified according to their driving and dependence in the developed model?

  4. 4.

    Explore the potentials of airline productivity factors in post-pandemic times.

  5. 5.

    What are the major pandemic challenges ahead of airline productivity, how these challenges can impact service excellence of airline industry?

  6. 6.

    Compare and benchmark the productivity factors of airline industry in India across international counter parts, discuss international competitiveness of airline industry in post-pandemic times.

Availability of data and material

Available on request.

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Acknowledgements

Authors are very thankful to all the anonymous reviewers, who have invested their valuable time for reviewing the work and providing their suggestions. Authors are also thankful to Dr. K. S. Momaya (Editor-in-chief) and Dr. Sourabh D. Kulkarni (Lead Guest Editor) for their inputs to improve the overall quality of the manuscript.

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Authors further state that there is no funding support has been received to carry out this study.

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SG: Conceptualization of model, methodology, formal analysis, writing—original draft, writing—review and editing. VT: Conceptualization of model, supervision, review and editing.

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Correspondence to Shamita Garg.

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Garg, S., Thakur, V. Modeling the Factors of Productivity in Airline Industry in India: A Hybrid TISM-P and Fuzzy-MICMAC Approach. JGBC (2021). https://doi.org/10.1007/s42943-021-00035-7

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Keywords

  • Productivity
  • Operational excellence
  • Service competitiveness
  • Airline industry
  • TISM-P
  • Fuzzy-MICMAC