Türkiye’de Sektörel Çeşitliliğin ve Bölgesel Uzmanlaşmanın Endüstriyel İstihdam Üzerine Etkileri
Year 2026,
Volume: 15 Issue: 1
,
72
-
97
,
12.03.2026
İrfan Kaygalak
Abstract
Bölgesel uzmanlaşma ve endüstriyel çeşitliliğin yarattığı dışsallıklar nedeniyle ekonomik kalkınma ve gelişme üzerinde olumlu etki ettiğine dair yaygın bir kabul vardır. Bu açıdan endüstriyel uzmanlaşmanın mı yoksa endüstriyel çeşitliliğin mi ekonomik büyüme ve gelişme performansına daha çok etki ettiği önemli bir tartışma konusudur. Bu çalışma da Türkiye’de sektörel uzmanlaşma ve çeşitliliğin illerin imalat sanayi istihdam artışı üzerindeki etkisini sorgulamaktadır. Bu kapsamda illerdeki ilişkili ve ilişkisiz çeşitlilik düzeylerinin büyüme performansı üzerindeki etkisi doğrusal olmayan iki terimli regresyon analiziyle incelemektedir. Bulgular, illerin imalat sanayi istihdam artışındaki başarısını açıklamada endüstriyel çeşitlilikten ziyade bölgesel uzmanlaşmanın daha açıklayıcı olduğunu göstermektedir. Çeşitlilik türlerinin bu anlamda fark yaratan bir etkiye sahip olup olmadıkları illerin ihracat bağlantıları ile iç piyasa bağlantılarının da analize dâhil edilmesiyle test edilmektedir. Bu yönüyle çalışma konuyla ilgili hem metodolojik bir öneri sunmuş olmakta hem de teorik varsayımları sorgulayan ampirik bulgular sunmaktadır.
Ethical Statement
Bu çalışma bilimsel araştırma ve yayın etiği kurallarına uygun olarak hazırlanmıştır.
Thanks
Yazar, illerin ilişkili ve ilişkisiz çeşitlilik düzeyleri verisini açık kaynak olarak paylaşıp bu çalışmayı mümkün kılan İbrahim Tuğrul Çınar'a ve yapıcı eleştirileri ile çalışmanın daha nitelikli hale gelip yayınlanmasına yardımcı olan hakemlere minnettar olup teşekkür eder.
References
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Abay, M., Akgüngör, S., Akyıldız, Y.T. (2021). Innovation, Relatedness and Complexity in Turkey: A Regional Analysis for 1978-2017. Ekonomi-Tek, 10(3), 135-171.
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Akgüngör, S. ve Abay, M. (2021). Knowledge Space, Relatedness and Complexity: A Regional Analysis in Turkey. Yıldız Social Science Review, 7(2), 110-122. https://doi.org/10.51803/yssr.869824
-
Akgüngör, S., Kustepeli, Y. ve Gülcan, Y. (2013). An overview on industry clusters and the impact of related variety on regional performance in Turkey. European Review of Industrial Economics and Policy, 5(1), 1-10. DOI : 10.61953/suptest.2870
-
Balassa, B. (1965). Trade Liberalisation and “Revealed” Comparative Advantage. The Manchester School, 33(2), 99–123. https://doi.org/10.1111/j.1467-9957.1965.tb00050.x
-
Bathelt, H. ve Storper, M. (2023). Related Variety and Regional Development: A Critique. Economic Geography, 99(5), 441–470. https://doi.org/10.1080/00130095.2023.2235050
-
Beaudry, C. ve Schiffauerova, A. (2009). Who’s Right, Marshall or Jacobs? The Localization versus Urbanization Debate. Research Policy, 38(2), 318-337. https://doi.org/10.1016/j.respol.2008.11.010
-
Boschma, R. (2017). Relatedness as driver of regional diversification: a research agenda. Regional Studies, 51(3), 351–364. https://doi.org/10.1080/00343404.2016.1254767
-
Boschma, R.A. ve Frenken, K. (2006). Why is economic geography not an evolutionary science? Towards an evolutionary economic geography. Journal of Economic Geography, 6(3), 273-302. https://doi.org/10.1093/jeg/lbi022
-
Boschma, R. A. ve Frenken, K. (2011). Technological relatedness and regional branching. H. Bathelt, M.P. Feldman ve D.F. Kogler (Ed.). Beyond territory: dynamic geographies of knowledge creation, diffusion and innovation. içinde (s. 64-81). London: Routledge.
-
Boschma, R., Eriksson, R. ve Lindgren, U. (2014). Labour market externalities and regional growth in Sweden: The importance of labour mobility between skill-related industries. Regional Studies, 48(10), 1669–90. https://doi.org/10.1080/00343404.2013.867429
-
Boschma, R., Minondo, A. ve Navarro, M. (2012). Related variety and regional growth in Spain. Papers in Regional Science, 91(2), 241–56. https://doi.org/10.1111/j.1435-5957.2011.00387.x
-
Caragliu, A., de Dominicis, L. ve de Groot, H. (2016). Both Marshall and Jacobs were right!. Economic Geography, 92(1), 87–111. https://doi.org/10.1080/00130095.2015.1094371
-
Castaldi, C., Frenken, K. ve Los, B. (2015). Related variety and unrelated variety and technological breakthroughs: An analysis of US state-level patenting. Regional Studies, 49(5), 767–781. https://doi.org/10.1080/00343404.2014.940305
-
Content, J. ve Frenken, K. (2016). Related variety and economic development: a literature review. European Planning Studies, 24(12), 2097–2112. https://doi.org/10.1080/09654313.2016.1246517
-
Çınar, İ.T. (2023a). Regional development trap in Turkey: Can relatedness find a way out?. Papers in Regional Science, 102(4), 817-851. https://doi.org/10.1111/pirs.12739
-
Çınar, İ.T. (2023b). Regional development trap and economic complexity in Turkey: Evidence from provincial data. Regional Science, Policy & Practice, 15(9), 2224-2253. https://doi.org/10.1111/rsp3.12719
-
Çınar, İ.T. (2023c). İlişkili – İlişkisiz Çeşitlilik ve Gelir Dağılımı: Türkiye’de Düzey-2 Bölgeleri için Bir Analiz. İzmir İktisat Dergisi, 38(1), 233-252.
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Çınar, İ.T. (2025). Related variety and Unrelated Variety: NUTS-3 Türkiye. (https://doi.org/10.6084/m9.figshare.28457789.v1).
-
Da Silva, G. D., Goncalves, E. Ve De Araújo, I. F. (2020). Related variety and employment growth: A spatial dynamic model for Brazilian microregions. Regional Science Policy & Practice, 12(1), 105-123. https://doi.org/10.1111/rsp3.12185
-
Diemer, A., Iammarino, S., Rodriguez-Pose, A. ve Storper, M. (2022). The regional development trap in Europe. Economic Geography, 98(5), 487–509. https://doi.org/10.1080/00130095.2022.2080655
-
Eraydin, A. (2015). Attributes and Characteristics of Regional Resilience: Defining and Measuring the Resilience of Turkish Regions. Regional Studies, 50(4), 600–614. https://doi.org/10.1080/00343404.2015.1034672
-
Essletzbichler, J. (2015). Relatedness, industrial branching and technological cohesion in US metro-politan areas. Regional Studies, 49(5), 752–766. https://doi.org/10.1080/00343404.2013.806793
-
Falcıoglu, P. (2011). Location and determinants of productivity: The case of the manufacturing industry in Turkey. Emerging Markets Finance and Trade, 47(5), 86–96. http://www.jstor.org/stable/41343389
-
Frenken, K., Van Oort, F. ve Verburg, T. (2007). Related Variety, Unrelated Variety and Regional Economic Growth”, Regional Studies, 41(5), 685–697. https://doi.org/10.1080/00343400601120296
-
Glaeser, E.L., Kallal, H.D., Scheinkman, J.A. ve Shleifer, A. (1992). Growth in Cities. Journal of Political Economy, 100(6), 1126-1152. https://www.jstor.org/stable/2138829
-
Gomez-Zaldivar, M., Mosqueda, M.T. ve Duran, J.A. (2018). Localization of manufacturing industries and specialization in Mexican states: 1993-2013. Regional Science Policy & Practice, 9(4), 301-316. https://doi.org/10.1111/rsp3.12111
-
Gordon, I.R. ve McCann, P. (2000). Industrial Clusters: Complexes, Agglomeration and/or Social Networks?. Urban Studies, 37(3), 513-532. https://doi.org/10.1080/0042098002096
-
Gültekin, L., Yavan, N. ve Kurul, Z. (2023). Evrimsel Ekonomik Coğrafya Perspektifinden Türkiye’de Bölgelerin İlişkili Çeşitlilik Dinamiklerine Yönelik Ampirik Bir Analiz. Coğrafi Bilimler Dergisi, 21(2), 616-659. https://doi.org/10.33688/aucbd.1354132
-
Hidalgo, C. A., Klinger, B., Barabási, A. L. ve Hausmann, R. (2007). The product space conditions the development of nations. Science, 5837(317), 482-487. DOI:10.1126/science.1144581
-
Kaygalak, İ. (2018). Localization and specialization tendency of manufacturing in Turkey”, International Journal of Geography and Geography Education, 38(1), 171-186. https://doi.org/10.32003/iggei.428136
-
Kemeny, T. ve Storper, M. (2015). Is specialization good for regional economic development?. Regional Studies, 49(6), 1003–1018. https://doi.org/10.1080/00343404.2014.899691
-
Kılıç, S. (2015). İki Durumlu Lojistik Regresyon Analizi. Journal of Mood Disorder, 5, 191-194.
-
King, J. E. (2008). Binary Logistic Regression. J.W. Osborne (Ed.) Best Practices in Quantitative Methods. içinde (s. 358-384). Sage: London.
-
Lazzeretti, L., Innocenti, N. ve Capone, F. (2017). The impact of related variety on the creative employment growth. Annals of Regional Science, 58(3), 491–512. https://doi.org/10.1007/s00168-016-0805-2
-
Mameli, F., Iammarino, S. ve Boschma, R. (2012). Regional variety and employment growth in Italian labour market areas: Services versus manufacturing industries. Papers in Evolutionary Economic Geography, 12(3), 1-23.
-
Martin, R. Ve Sunley, P. (2006). Path dependence and regional economic evolution. Journal of Economic Geography, 6(4), 395–437. https://doi.org/10.1093/jeg/lbl012
-
Neffke, F. Ve Henning, M. (2013). Skill relatedness and firm diversification. Strategic Management Journal, 34(3), 297–316. https://doi.org/10.1002/smj.2014
-
Neffke, F., Henning, M., Boschma, R., Lundquist, K.J. ve Olander, L.O. (2010). The Dynamics of Agglomeration Externalities along the Life Cycle of Industries. Regional Studies, 45(1), 49–65. https://doi.org/10.1080/00343401003596307
-
Osborne, J.W. (2015). Best Practices in Logistic Regression. London: Sage.
-
Rana, S., Midi, H. ve Sarkar, S.K. (2010). Validation and performance analysis of binary logistic regression model. In: WSEAS International Conference on Environment, Medicine and Health Sciences (EMEH '10), 23-25 Mar. 2010, Penang, Malaysia. (pp. 51-55).
-
Schober, P. ve Vetter, R.T. (2021). Logistic Regression in Medical Research. Anesthesia & Analgesia, 132(2), 365-366. DOI: 10.1213/ANE.0000000000005247
-
Sedita, S.R., De Noni, I. ve Pilotti, L. (2017). Out of the crisis: An empirical investigation of places pecific determinants of economic resilience. European Planning Studies, 25(2),155–80. https://doi.org/10.1080/09654313.2016.1261804
-
Shrestha, N. (2019). Application of Binary Logistic Regression Model to Assess the Likelihood of Overweight. American Journal of Theoretical and Applied Statistics, 8(1), 18-25. doi: 10.11648/j.ajtas.20190801.13
-
Storper, M. ve Venables, A.J. (2004). Buzz: face-to-face contact and the urban economy. Journal of Economic Geography, 4(4), 351–370. http://www.jstor.org/stable/26160910
-
Tomasz, M. ve Paweł, D. (2020). Related and unrelated variety vs. basic labour market variables - regional analysis for Poland. European Planning Studies, 29(2), 221–240. https://doi.org/10.1080/09654313.2020.1728520
-
Turkcan, B. (2014). Knowledge Externalities and Knowledge Spillovers in Social Networks: The Case of Izmir Metalwork Industrial District. European Planning Studies, 22(7), 1425–1443. https://doi.org/10.1080/09654313.2013.789488
-
Van Oort, F., de Geus, S. ve Dogaru, T. (2014). Related Variety and Regional Economic Growth in a Cross-Section of European Urban Regions. European Planning Studies, 23(6), 1110–1127. https://doi.org/10.1080/09654313.2014.905003
-
Wixe, S. ve Andersson, M. (2017). Which types of relatedness matter in regional growth? Industry, occupation and education. Regional Studies, 51(4), 523–36. https://doi.org/10.1080/00343404.2015.1112369
The Effects of Industrial Diversity and Regional Specialization on Manufacturing Employment Growth in Türkiye
Year 2026,
Volume: 15 Issue: 1
,
72
-
97
,
12.03.2026
İrfan Kaygalak
Abstract
There is a widespread consensus that regional specialization and industrial diversity have a positive impact on economic development and growth due to the externalities they create. In this respect, whether industrial specialization or industrial diversity has a greater impact on economic growth and development is a significant topic of debate. This study examines the impact of sectoral specialization and diversity on the manufacturing employment growth in Turkish provinces. Using a nonlinear binary logistic regression model, the study analyses the role of industrial diversity by distinguishing between related and unrelated variety. The study reveals that regional specialization is a better explanatory factor than industrial diversity in predicting provincial success in manufacturing employment growth. The study tests the impact of diversity via incorporating provinces' export linkages and domestic market linkages into the analysis. In this regard, it not only offers a methodological contribution to the field but also presents empirical findings that question theoretical assumptions.
Thanks
I would like to thank İbrahim Tuğrul Çınar for making this study possible by sharing data on related and unrelated variety levels of the provinces as open-source data.
References
-
Abay, M., Akgüngör, S., Akyıldız, Y.T. (2021). Innovation, Relatedness and Complexity in Turkey: A Regional Analysis for 1978-2017. Ekonomi-Tek, 10(3), 135-171.
-
Akgüngör, S. ve Abay, M. (2021). Knowledge Space, Relatedness and Complexity: A Regional Analysis in Turkey. Yıldız Social Science Review, 7(2), 110-122. https://doi.org/10.51803/yssr.869824
-
Akgüngör, S., Kustepeli, Y. ve Gülcan, Y. (2013). An overview on industry clusters and the impact of related variety on regional performance in Turkey. European Review of Industrial Economics and Policy, 5(1), 1-10. DOI : 10.61953/suptest.2870
-
Balassa, B. (1965). Trade Liberalisation and “Revealed” Comparative Advantage. The Manchester School, 33(2), 99–123. https://doi.org/10.1111/j.1467-9957.1965.tb00050.x
-
Bathelt, H. ve Storper, M. (2023). Related Variety and Regional Development: A Critique. Economic Geography, 99(5), 441–470. https://doi.org/10.1080/00130095.2023.2235050
-
Beaudry, C. ve Schiffauerova, A. (2009). Who’s Right, Marshall or Jacobs? The Localization versus Urbanization Debate. Research Policy, 38(2), 318-337. https://doi.org/10.1016/j.respol.2008.11.010
-
Boschma, R. (2017). Relatedness as driver of regional diversification: a research agenda. Regional Studies, 51(3), 351–364. https://doi.org/10.1080/00343404.2016.1254767
-
Boschma, R.A. ve Frenken, K. (2006). Why is economic geography not an evolutionary science? Towards an evolutionary economic geography. Journal of Economic Geography, 6(3), 273-302. https://doi.org/10.1093/jeg/lbi022
-
Boschma, R. A. ve Frenken, K. (2011). Technological relatedness and regional branching. H. Bathelt, M.P. Feldman ve D.F. Kogler (Ed.). Beyond territory: dynamic geographies of knowledge creation, diffusion and innovation. içinde (s. 64-81). London: Routledge.
-
Boschma, R., Eriksson, R. ve Lindgren, U. (2014). Labour market externalities and regional growth in Sweden: The importance of labour mobility between skill-related industries. Regional Studies, 48(10), 1669–90. https://doi.org/10.1080/00343404.2013.867429
-
Boschma, R., Minondo, A. ve Navarro, M. (2012). Related variety and regional growth in Spain. Papers in Regional Science, 91(2), 241–56. https://doi.org/10.1111/j.1435-5957.2011.00387.x
-
Caragliu, A., de Dominicis, L. ve de Groot, H. (2016). Both Marshall and Jacobs were right!. Economic Geography, 92(1), 87–111. https://doi.org/10.1080/00130095.2015.1094371
-
Castaldi, C., Frenken, K. ve Los, B. (2015). Related variety and unrelated variety and technological breakthroughs: An analysis of US state-level patenting. Regional Studies, 49(5), 767–781. https://doi.org/10.1080/00343404.2014.940305
-
Content, J. ve Frenken, K. (2016). Related variety and economic development: a literature review. European Planning Studies, 24(12), 2097–2112. https://doi.org/10.1080/09654313.2016.1246517
-
Çınar, İ.T. (2023a). Regional development trap in Turkey: Can relatedness find a way out?. Papers in Regional Science, 102(4), 817-851. https://doi.org/10.1111/pirs.12739
-
Çınar, İ.T. (2023b). Regional development trap and economic complexity in Turkey: Evidence from provincial data. Regional Science, Policy & Practice, 15(9), 2224-2253. https://doi.org/10.1111/rsp3.12719
-
Çınar, İ.T. (2023c). İlişkili – İlişkisiz Çeşitlilik ve Gelir Dağılımı: Türkiye’de Düzey-2 Bölgeleri için Bir Analiz. İzmir İktisat Dergisi, 38(1), 233-252.
-
Çınar, İ.T. (2025). Related variety and Unrelated Variety: NUTS-3 Türkiye. (https://doi.org/10.6084/m9.figshare.28457789.v1).
-
Da Silva, G. D., Goncalves, E. Ve De Araújo, I. F. (2020). Related variety and employment growth: A spatial dynamic model for Brazilian microregions. Regional Science Policy & Practice, 12(1), 105-123. https://doi.org/10.1111/rsp3.12185
-
Diemer, A., Iammarino, S., Rodriguez-Pose, A. ve Storper, M. (2022). The regional development trap in Europe. Economic Geography, 98(5), 487–509. https://doi.org/10.1080/00130095.2022.2080655
-
Eraydin, A. (2015). Attributes and Characteristics of Regional Resilience: Defining and Measuring the Resilience of Turkish Regions. Regional Studies, 50(4), 600–614. https://doi.org/10.1080/00343404.2015.1034672
-
Essletzbichler, J. (2015). Relatedness, industrial branching and technological cohesion in US metro-politan areas. Regional Studies, 49(5), 752–766. https://doi.org/10.1080/00343404.2013.806793
-
Falcıoglu, P. (2011). Location and determinants of productivity: The case of the manufacturing industry in Turkey. Emerging Markets Finance and Trade, 47(5), 86–96. http://www.jstor.org/stable/41343389
-
Frenken, K., Van Oort, F. ve Verburg, T. (2007). Related Variety, Unrelated Variety and Regional Economic Growth”, Regional Studies, 41(5), 685–697. https://doi.org/10.1080/00343400601120296
-
Glaeser, E.L., Kallal, H.D., Scheinkman, J.A. ve Shleifer, A. (1992). Growth in Cities. Journal of Political Economy, 100(6), 1126-1152. https://www.jstor.org/stable/2138829
-
Gomez-Zaldivar, M., Mosqueda, M.T. ve Duran, J.A. (2018). Localization of manufacturing industries and specialization in Mexican states: 1993-2013. Regional Science Policy & Practice, 9(4), 301-316. https://doi.org/10.1111/rsp3.12111
-
Gordon, I.R. ve McCann, P. (2000). Industrial Clusters: Complexes, Agglomeration and/or Social Networks?. Urban Studies, 37(3), 513-532. https://doi.org/10.1080/0042098002096
-
Gültekin, L., Yavan, N. ve Kurul, Z. (2023). Evrimsel Ekonomik Coğrafya Perspektifinden Türkiye’de Bölgelerin İlişkili Çeşitlilik Dinamiklerine Yönelik Ampirik Bir Analiz. Coğrafi Bilimler Dergisi, 21(2), 616-659. https://doi.org/10.33688/aucbd.1354132
-
Hidalgo, C. A., Klinger, B., Barabási, A. L. ve Hausmann, R. (2007). The product space conditions the development of nations. Science, 5837(317), 482-487. DOI:10.1126/science.1144581
-
Kaygalak, İ. (2018). Localization and specialization tendency of manufacturing in Turkey”, International Journal of Geography and Geography Education, 38(1), 171-186. https://doi.org/10.32003/iggei.428136
-
Kemeny, T. ve Storper, M. (2015). Is specialization good for regional economic development?. Regional Studies, 49(6), 1003–1018. https://doi.org/10.1080/00343404.2014.899691
-
Kılıç, S. (2015). İki Durumlu Lojistik Regresyon Analizi. Journal of Mood Disorder, 5, 191-194.
-
King, J. E. (2008). Binary Logistic Regression. J.W. Osborne (Ed.) Best Practices in Quantitative Methods. içinde (s. 358-384). Sage: London.
-
Lazzeretti, L., Innocenti, N. ve Capone, F. (2017). The impact of related variety on the creative employment growth. Annals of Regional Science, 58(3), 491–512. https://doi.org/10.1007/s00168-016-0805-2
-
Mameli, F., Iammarino, S. ve Boschma, R. (2012). Regional variety and employment growth in Italian labour market areas: Services versus manufacturing industries. Papers in Evolutionary Economic Geography, 12(3), 1-23.
-
Martin, R. Ve Sunley, P. (2006). Path dependence and regional economic evolution. Journal of Economic Geography, 6(4), 395–437. https://doi.org/10.1093/jeg/lbl012
-
Neffke, F. Ve Henning, M. (2013). Skill relatedness and firm diversification. Strategic Management Journal, 34(3), 297–316. https://doi.org/10.1002/smj.2014
-
Neffke, F., Henning, M., Boschma, R., Lundquist, K.J. ve Olander, L.O. (2010). The Dynamics of Agglomeration Externalities along the Life Cycle of Industries. Regional Studies, 45(1), 49–65. https://doi.org/10.1080/00343401003596307
-
Osborne, J.W. (2015). Best Practices in Logistic Regression. London: Sage.
-
Rana, S., Midi, H. ve Sarkar, S.K. (2010). Validation and performance analysis of binary logistic regression model. In: WSEAS International Conference on Environment, Medicine and Health Sciences (EMEH '10), 23-25 Mar. 2010, Penang, Malaysia. (pp. 51-55).
-
Schober, P. ve Vetter, R.T. (2021). Logistic Regression in Medical Research. Anesthesia & Analgesia, 132(2), 365-366. DOI: 10.1213/ANE.0000000000005247
-
Sedita, S.R., De Noni, I. ve Pilotti, L. (2017). Out of the crisis: An empirical investigation of places pecific determinants of economic resilience. European Planning Studies, 25(2),155–80. https://doi.org/10.1080/09654313.2016.1261804
-
Shrestha, N. (2019). Application of Binary Logistic Regression Model to Assess the Likelihood of Overweight. American Journal of Theoretical and Applied Statistics, 8(1), 18-25. doi: 10.11648/j.ajtas.20190801.13
-
Storper, M. ve Venables, A.J. (2004). Buzz: face-to-face contact and the urban economy. Journal of Economic Geography, 4(4), 351–370. http://www.jstor.org/stable/26160910
-
Tomasz, M. ve Paweł, D. (2020). Related and unrelated variety vs. basic labour market variables - regional analysis for Poland. European Planning Studies, 29(2), 221–240. https://doi.org/10.1080/09654313.2020.1728520
-
Turkcan, B. (2014). Knowledge Externalities and Knowledge Spillovers in Social Networks: The Case of Izmir Metalwork Industrial District. European Planning Studies, 22(7), 1425–1443. https://doi.org/10.1080/09654313.2013.789488
-
Van Oort, F., de Geus, S. ve Dogaru, T. (2014). Related Variety and Regional Economic Growth in a Cross-Section of European Urban Regions. European Planning Studies, 23(6), 1110–1127. https://doi.org/10.1080/09654313.2014.905003
-
Wixe, S. ve Andersson, M. (2017). Which types of relatedness matter in regional growth? Industry, occupation and education. Regional Studies, 51(4), 523–36. https://doi.org/10.1080/00343404.2015.1112369