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            <front>

                <journal-meta>
                                    <journal-id></journal-id>
            <journal-title-group>
                                                                                    <journal-title>İstanbul Ticaret Üniversitesi Girişimcilik Dergisi</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">2536-4456</issn>
                                        <issn pub-type="epub">2717-7416</issn>
                                                                                            <publisher>
                    <publisher-name>Istanbul Ticaret University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.55830/tje.1740475</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Business Administration</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>İşletme </subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <trans-title-group xml:lang="tr">
                                    <trans-title>G20 ÜLKELERİNİN HAVACILIK PERFORMANSININ İNCELENMESİ</trans-title>
                                </trans-title-group>
                                                                                                                                                                                                <article-title>EXAMINATION OF THE AVIATION PERFORMANCE OF G20  COUNTRIES</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0009-0003-9602-6212</contrib-id>
                                                                <name>
                                    <surname>Kudu</surname>
                                    <given-names>Cem</given-names>
                                </name>
                                                                    <aff>ERCİYES ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-0434-5834</contrib-id>
                                                                <name>
                                    <surname>Avcı</surname>
                                    <given-names>Tunahan</given-names>
                                </name>
                                                                    <aff>ERCİYES ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20260131">
                    <day>01</day>
                    <month>31</month>
                    <year>2026</year>
                </pub-date>
                                        <volume>9</volume>
                                        <issue>19</issue>
                                        <fpage>63</fpage>
                                        <lpage>88</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20250711">
                        <day>07</day>
                        <month>11</month>
                        <year>2025</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20251103">
                        <day>11</day>
                        <month>03</month>
                        <year>2025</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2017, Turkish Journal of Entrepreneurship</copyright-statement>
                    <copyright-year>2017</copyright-year>
                    <copyright-holder>Turkish Journal of Entrepreneurship</copyright-holder>
                </permissions>
            
                                                                                                <trans-abstract xml:lang="tr">
                            <p>Bu çalışmada, G20 ülkelerinin havacılık sektöründeki 2023 yılı performansı karşılaştırmalıolarak analiz edilmiştir. Amaç, ülkelerin mevcut kaynaklarla sektörel çıktılarını ne ölçüdemaksimize edebildiklerini ortaya koymaktır. Girdiler (ticari havalimanı sayısı, havacılıkyatırımı, toplam çalışan sayısı) ve çıktılar (yıllık yolcu trafiği, kargo hacmi, havacılığınekonomik katkısı) dikkate alınmıştır. Türkiye, ABD, Almanya, İngiltere, Çin, Fransa,Güney Kore, Endonezya, Arjantin, İtalya ve Güney Afrika&amp;#39;nın tam verimli olduğugörülmüştür. Buna karşılık, Avustralya, Brezilya, Hindistan, Japonya, Kanada, Meksika,Meksika ve Suudi Arabistan verimlilik eşiğinin altında kalmıştır. Özellikle Güney Kore veABD, birçok ülke için en örnek referans birimleri olarak öne çıkmaktadır. Bulgular,havacılık sektöründe kaynakların daha verimli kullanılması için politika önerilerisunmaktadır.</p></trans-abstract>
                                                                                                                                    <abstract><p>In this study, the performance of G20 countries in the aviation sector in 2023 is analyzedcomparatively. The aim is to reveal the extent to which countries are able to maximizetheir sectoral outputs with the available resources. Inputs (number of commercial airports,aviation investment, total number of employees) and outputs (annual passenger traffic,cargo volume, economic contribution of aviation) are considered. Turkey, USA, Germany,UK, China, France, South Korea, Indonesia, Argentina, Italy and South Africa were foundto be fully efficient. In contrast, Australia, Brazil, India, Japan, Japan, Canada, Mexico,Mexico and Saudi Arabia were below the efficiency threshold. In particular, South Koreaand the USA stand out as the most exemplary reference units for many countries. Thefindings provide policy recommendations for more efficient use of resources in theaviation sector.</p></abstract>
                                                            
            
                                                                                        <kwd-group>
                                                    <kwd>Envelopment Analysis</kwd>
                                                    <kwd>  Aviation</kwd>
                                                    <kwd>  G20 Countries</kwd>
                                                    <kwd>  Efficiency</kwd>
                                            </kwd-group>
                            
                                                <kwd-group xml:lang="tr">
                                                    <kwd>Veri Zarflama Analizi</kwd>
                                                    <kwd>  Havacılık</kwd>
                                                    <kwd>  G20 Ülkeleri</kwd>
                                                    <kwd>  Verimlilik</kwd>
                                            </kwd-group>
                                                                                                                                        </article-meta>
    </front>
    <back>
                            <ref-list>
                                    <ref id="ref1">
                        <label>1</label>
                        <mixed-citation publication-type="journal">Acer, A., &amp; Timor, M. (2017). Kümeleme ve veri zarflama analizi (DEA) ile konteyner terminal etkinliklerinin belirlenmesi. Alphanumeric Journal, 5(2), 339–352. https://doi.org/10.17093/alphanumeric.356455</mixed-citation>
                    </ref>
                                    <ref id="ref2">
                        <label>2</label>
                        <mixed-citation publication-type="journal">Asker, V. (2018). Veri Zarflama Analizi ile Finansal ve Operasyonel Etkinlik Ölçümü: Geleneksel Havayolu İşletmelerinde Bir Uygulama. Anadolu Üniversitesi Sosyal Bilimler Dergisi, 18(1), 153-172. https://doi.org/10.18037/ausbd.550951</mixed-citation>
                    </ref>
                                    <ref id="ref3">
                        <label>3</label>
                        <mixed-citation publication-type="journal">Asker, V., &amp; Aydın, N. (2021). Financial Efficiency Measurement in Airlines and Determining Factors of Efficiency. Alanya Akademik Bakış, 5(2), 793-814. https://doi.org/10.29023/alanyaakademik.809865</mixed-citation>
                    </ref>
                                    <ref id="ref4">
                        <label>4</label>
                        <mixed-citation publication-type="journal">Avcı, T., &amp; Aktaş, M. (2017). Ülkeler Bazında Katılım Bankacılığının Performanslarının Karşılaştırılması. International Journal of Social Science Research, 6(2), 66-82. https://dergipark.org.tr/tr/pub/ijssresearch/issue/33589/362255</mixed-citation>
                    </ref>
                                    <ref id="ref5">
                        <label>5</label>
                        <mixed-citation publication-type="journal">Avcı, T., &amp; Aktaş, M. (2016). Türkiye’de Faaliyet Gösteren Havalimanlarının Performanslarının Değerlendirilmesi. Uluslararası Alanya İşletme Fakültesi Dergisi, 7(3). https://dergipark.org.tr/tr/pub/uaifd/issue/21604/232042</mixed-citation>
                    </ref>
                                    <ref id="ref6">
                        <label>6</label>
                        <mixed-citation publication-type="journal">Banker, R. D., Charnes, A., &amp; Cooper, W. W. (1984). Some models for estimating technical and scale inefficiencies in data envelopment analysis. Management Science, 30(9), 1078–1092. https://doi.org/10.1287/mnsc.30.9.1078</mixed-citation>
                    </ref>
                                    <ref id="ref7">
                        <label>7</label>
                        <mixed-citation publication-type="journal">Barros, C., &amp; Dieke, P. (2007). Performance evaluation of Italian airports: A data envelopment analysis. Journal of Air Transport Management, 13, 184–191. https://doi.org/10.1016/j.jairtraman.2007.03.001</mixed-citation>
                    </ref>
                                    <ref id="ref8">
                        <label>8</label>
                        <mixed-citation publication-type="journal">Bazargan, M., &amp; Vasigh, B. (2003). Size versus efficiency: A case study of US commercial airports. Journal of Air Transport Management, 9, 187–193. https://doi.org/10.1016/S0969-6997(02)00084-4</mixed-citation>
                    </ref>
                                    <ref id="ref9">
                        <label>9</label>
                        <mixed-citation publication-type="journal">Bourjade, S., &amp; Muller-Vibes, C. (2023). Optimal leasing and airlines’ cost efficiency: A stochastic frontier analysis. Transportation Research Part A: Policy and Practice, 176, 103804. 
https://doi.org/10.1016/j.tra.2023.103804</mixed-citation>
                    </ref>
                                    <ref id="ref10">
                        <label>10</label>
                        <mixed-citation publication-type="journal">Boussofiane, A., Dyson, R. G., &amp; Thanassoulis, E. (1991). Applied data envelopment analysis. European Journal of Operational Research, 52(1), 1–15. https://doi.org/10.1016/0377-2217(91)90331-O</mixed-citation>
                    </ref>
                                    <ref id="ref11">
                        <label>11</label>
                        <mixed-citation publication-type="journal">Budak, H. (2011). Veri Zarflama Analizi ve Türk Bankacılık Sektöründe Uygulaması. Marmara Fen Bilimleri Dergisi, 23(3), 95-110. https://doi.org/10.7240/mufbed.41004</mixed-citation>
                    </ref>
                                    <ref id="ref12">
                        <label>12</label>
                        <mixed-citation publication-type="journal">Button, K., &amp; Pels, E. (2010). International air transport: The impact of globalisation on activity levels. https://doi.org/10.1787/9789264072916-6-en</mixed-citation>
                    </ref>
                                    <ref id="ref13">
                        <label>13</label>
                        <mixed-citation publication-type="journal">Bloom, N., &amp; Van Reenen, J. (2010). Why do management practices differ across firms and countries? Journal of Economic Perspectives, 24(1), 203–224. https://doi.org/10.1257/jep.24.1.203</mixed-citation>
                    </ref>
                                    <ref id="ref14">
                        <label>14</label>
                        <mixed-citation publication-type="journal">Koç, E., &amp; Çalıpınar, H. (2017). Comparison of Turkish Airports Efficiency with FarePrimont and Malmquist Productivity Index. International Journal of Academic Values Studies(8), 77-87. 
https://dergipark.org.tr/en/pub/ijavs/issue/28371/301664</mixed-citation>
                    </ref>
                                    <ref id="ref15">
                        <label>15</label>
                        <mixed-citation publication-type="journal">Carvalho, F. R. (2025, June 25). Unlocking Brazil’s aviation potential. International Airport Review. https://www.internationalairportreview.com/article/283816/unlocking-brazils-aviation-potential/</mixed-citation>
                    </ref>
                                    <ref id="ref16">
                        <label>16</label>
                        <mixed-citation publication-type="journal">Charnes, A., Cooper, W. W., &amp; Rhodes, E. (1978). Measuring the efficiency of decision making units. European Journal of Operational Research, 2(6), 429–444. https://doi.org/10.1016/0377-2217(78)90138-8</mixed-citation>
                    </ref>
                                    <ref id="ref17">
                        <label>17</label>
                        <mixed-citation publication-type="journal">Chen, Y., Cheng, S., &amp; Zhu, Z. (2021). Exploring the operational and environmental performance of Chinese airlines: A two-stage undesirable SBM-NDEA approach. Journal of Cleaner Production, 289, 125711. https://doi.org/10.1016/j.jclepro.2020.125711</mixed-citation>
                    </ref>
                                    <ref id="ref18">
                        <label>18</label>
                        <mixed-citation publication-type="journal">Competition Bureau Canada. (2025, June 19). Backgrounder: Unique air travel challenges for northern and remote communities. Government of Canada. https://www.canada.ca/en/competition-bureau/news/2025/06/backgrounder-unique-air-travel-challenges-for-northern-and-remote-communities.html</mixed-citation>
                    </ref>
                                    <ref id="ref19">
                        <label>19</label>
                        <mixed-citation publication-type="journal">Coto-Millán, P., Inglada, V., Fernández, X. L., Inglada-Pérez, L., &amp; Pesquera, M. Á. (2016). The “effect procargo” on technical and scale efficiency at airports: The case of Spanish airports (2009–2011). Utilities Policy, 39, 29–35. https://doi.org/10.1016/j.jup.2016.01.004</mixed-citation>
                    </ref>
                                    <ref id="ref20">
                        <label>20</label>
                        <mixed-citation publication-type="journal">Cooper, W. W., Seiford, L. M., &amp; Tone, K. (2007). Data envelopment analysis: A comprehensive text with models, applications, references and DEA-solver software (2nd ed.). Springer. https://doi.org/10.1007/978-0-387-45283-8</mixed-citation>
                    </ref>
                                    <ref id="ref21">
                        <label>21</label>
                        <mixed-citation publication-type="journal">Cui, Q., &amp; Yu, L.-T. (2021). A review of data envelopment analysis in airline efficiency: State of the art and prospects. Journal of Advanced Transportation, 2021, 1–13. https://doi.org/10.1155/2021/2931734</mixed-citation>
                    </ref>
                                    <ref id="ref22">
                        <label>22</label>
                        <mixed-citation publication-type="journal">Çınaroğlu, E., Doruk, N., &amp; Avcı, T. (2018). ERCİYES ÜNİVERSİTESİ FAKÜLTELERİNİN VERİ ZARFLAMA ANALİZİ YÖNTEMİYLE ETKİNLİK ANALİZİ. Uluslararası Yönetim İktisat Ve İşletme Dergisi, 14(4), 1025-1043. https://doi.org/10.17130/ijmeb.2018445668</mixed-citation>
                    </ref>
                                    <ref id="ref23">
                        <label>23</label>
                        <mixed-citation publication-type="journal">Farrell, M. J. (1957). The Measurement of Productive Efficiency. Journal of the Royal Statistical Society. Series A (General), 120(3), 253–290. https://doi.org/10.2307/2343100</mixed-citation>
                    </ref>
                                    <ref id="ref24">
                        <label>24</label>
                        <mixed-citation publication-type="journal">Güner, S., Antunes, J. J. M., Codal, K. S., &amp; Wanke, P. (2024). Network centrality driven airport efficiency: A weight-restricted network DEA. Journal of Air Transport Management, 116, 102551. https://doi.org/10.1016/j.jairtraman.2024.102551</mixed-citation>
                    </ref>
                                    <ref id="ref25">
                        <label>25</label>
                        <mixed-citation publication-type="journal">Hong, H.-J., Cho, Y.-H., &amp; Yoon, Y.-H. (2024, March 11). Korean government unveils plans to promote aviation industry. Invest Korea. https://www.investkorea.org/ik-en/bbs/i-465/detail.do?ntt_sn=492480</mixed-citation>
                    </ref>
                                    <ref id="ref26">
                        <label>26</label>
                        <mixed-citation publication-type="journal">ICAO. (2022). World air transport statistics. International Civil Aviation Organization. https://www.icao.int</mixed-citation>
                    </ref>
                                    <ref id="ref27">
                        <label>27</label>
                        <mixed-citation publication-type="journal">IATA. (2023). Value of air transport country reports. International Air Transport Association. https://www.iata.org</mixed-citation>
                    </ref>
                                    <ref id="ref28">
                        <label>28</label>
                        <mixed-citation publication-type="journal">Koçak, H. (2011). Efficiency examination of Turkish airports with DEA approach. International Business Research, 4(2), 204–212. https://doi.org/10.5539/ibr.v4n2p204</mixed-citation>
                    </ref>
                                    <ref id="ref29">
                        <label>29</label>
                        <mixed-citation publication-type="journal">Martí, L., Martín, J. C., &amp; Puertas, R. (2017). A Dea-Logistics Performance Index. Journal of Applied Economics, 20(1), 169–192. https://doi.org/10.1016/S1514-0326(17)30008-9</mixed-citation>
                    </ref>
                                    <ref id="ref30">
                        <label>30</label>
                        <mixed-citation publication-type="journal">Merkert, R., &amp; Hensher, D. (2011). The impact of strategic management and fleet planning on airline efficiency: A random effects Tobit model based on DEA efficiency scores. Transportation Research Part A: Policy and Practice, 45, 686–695. https://doi.org/10.1016/j.tra.2011.04.015</mixed-citation>
                    </ref>
                                    <ref id="ref31">
                        <label>31</label>
                        <mixed-citation publication-type="journal">NineSquared. (2024, August 4). Seven challenges for regional and remote airports. https://ninesquared.com.au/insights/seven-challenges-for-regional-and-remote-airports/</mixed-citation>
                    </ref>
                                    <ref id="ref32">
                        <label>32</label>
                        <mixed-citation publication-type="journal">Nguyen, M.-A. T., Yu, M.-M., &amp; Lirn, T.-C. (2022). Revenue efficiency across airline business models: A bootstrap non-convex meta-frontier approach. Transport Policy, 117, 108–117. https://doi.org/10.1016/j.tranpol.2022.01.007
Mhlanga, O.; Drivers of efficiency and their influence on airline performances in South Africa: a bootstrapped meta-frontier approach. International Journal of Culture Tourism and Hospitality Research 20 February 2020; 14 (1): 121–135. https://doi.org/10.1108/IJCTHR-06-2019-0109</mixed-citation>
                    </ref>
                                    <ref id="ref33">
                        <label>33</label>
                        <mixed-citation publication-type="journal">Örkcü, H. H., Balıkçı, C., Doğan, M. İ., &amp; Genç, A. (2016). An evaluation of the operational efficiency of Turkish airports using data envelopment analysis and the Malmquist productivity index: 2009–2014 case. Transport Policy, 48, 92–104. https://doi.org/10.1016/j.tranpol.2016.02.008</mixed-citation>
                    </ref>
                                    <ref id="ref34">
                        <label>34</label>
                        <mixed-citation publication-type="journal">Özden, Ü. (2009). Veri zarflama analizi (VZA) ile Türkiye’deki vakıf üniversitelerinin etkinliğinin ölçülmesi. İstanbul Üniversitesi İşletme Fakültesi Dergisi, 37(2), 167-185. https://dergipark.org.tr/en/pub/iuisletme/issue/9243/115660</mixed-citation>
                    </ref>
                                    <ref id="ref35">
                        <label>35</label>
                        <mixed-citation publication-type="journal">Pels, E., Nijkamp, P., &amp; Rietveld, P. (2003). Inefficiencies and scale economies of European airport operations. Transportation Research Part E: Logistics and Transportation Review, 39, 341–361. https://doi.org/10.1016/S1366-5545(03)00016-4</mixed-citation>
                    </ref>
                                    <ref id="ref36">
                        <label>36</label>
                        <mixed-citation publication-type="journal">Saranga, H., &amp; Nagpal, R. (2016). Drivers of operational efficiency and its impact on market performance in the Indian airline industry. Journal of Air Transport Management, 53, 165–176. https://doi.org/10.1016/j.jairtraman.2016.03.001</mixed-citation>
                    </ref>
                                    <ref id="ref37">
                        <label>37</label>
                        <mixed-citation publication-type="journal">Tunç, S., Gök, A., Vural, A., Sarıkaya, M. E., Karaaslan, A. A., &amp; Çayır Ervural, B. (2024). Turkey ve G‑20 Countrylerinin havacılık sektöründe etkinlik analizi. Aerospace Research Letters (ASREL), 3(1), 44–68. https://doi.org/10.56753/ASREL.2024.3.2</mixed-citation>
                    </ref>
                                    <ref id="ref38">
                        <label>38</label>
                        <mixed-citation publication-type="journal">Uygurtürk, H., &amp; Korkmaz, T. (2016). Borsa İstanbul’da işlem gören perakende ticaret sektörü firmalarının etkinliklerinin veri zarflama analizi ile belirlenmesi. Balkan Sosyal Bilimler Dergisi, 411-427 https://dergipark.org.tr/tr/pub/bsbd/issue/43860/539498</mixed-citation>
                    </ref>
                                    <ref id="ref39">
                        <label>39</label>
                        <mixed-citation publication-type="journal">Uzgören, E., &amp; Şahin, G. (2013). Dumlupınar Üniversitesi meslek yüksekokulları’nın performanslarının veri zarflama analizi yöntemiyle ölçümü. Uluslararası Yönetim İktisat ve İşletme Dergisi, 9(18), 91-110.  https://doi.org/10.11122/ijmeb.2013.9.18.148</mixed-citation>
                    </ref>
                                    <ref id="ref40">
                        <label>40</label>
                        <mixed-citation publication-type="journal">Yilmaz, M. K., Kusakci, A. O., Aksoy, M., &amp; Hacioglu, U. (2022). The evaluation of operational efficiencies of Turkish airports: An integrated spherical fuzzy AHP/DEA approach. Applied Soft Computing, 119, 108620. https://doi.org/10.1016/j.asoc.2022.108620</mixed-citation>
                    </ref>
                                    <ref id="ref41">
                        <label>41</label>
                        <mixed-citation publication-type="journal">Wang, Z., Zhu, X., Zhang, H., &amp; Boocock, A. (2023). Study on non-aeronautical efficiency of Chinese listed airports based on two-stage network DEA. Research in Transportation Business &amp; Management, 46, 100867. https://doi.org/10.1016/j.rtbm.2022.100867</mixed-citation>
                    </ref>
                            </ref-list>
                    </back>
    </article>
