Araştırma Makalesi
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An Examination of Individual Investors' Investment Decisions from a Behavioral Finance Perspective

Yıl 2025, Cilt: 10 Sayı: 3, 969 - 993, 29.10.2025
https://doi.org/10.25229/beta.1643860

Öz

This study examines the investment decisions of 542 individual investors in Türkiye’s Southeastern Anatolia Region (Diyarbakır, Bingöl, Mardin) from a behavioral finance perspective. Data were collected through face-to-face interviews using a structured questionnaire, tailored to the region’s low literacy and limited digital access. The relationships between demographic factors (gender, marital status, age, occupation, income, education) and behavioral finance tendencies were analyzed using t-tests and ANOVA. No significant relationships were found for gender, marital status, age, occupation, or income, but education level significantly influenced behavioral finance tendencies (p=0.010), with high school graduates showing lower cognitive biases (e.g., overconfidence, loss aversion) than primary school graduates. Investors exhibited a conservative approach, favoring traditional instruments like gold (32.3%) and real estate (24.4%), reflecting cultural influences and risk aversion. These findings highlight education’s critical role in enhancing financial literacy and reducing biases in socio-economically disadvantaged regions, informing targeted financial education programs.

Kaynakça

  • Afriany, A., Putranti, L., Herdiany, H., & Tisya, V. (2022). Covid 19: Investment decisions of individual investor based on behavioral finance factors. Proceedings of the 1st UPY International Conference on Education and Social Science (UPINCESS 2022). Advances in Social Science, Education and Humanities Research https://doi.org/10.2991/978-2-494069-39-8_9
  • Anshu, P. (2024). Behavioral biases influencing individual investors decision making in bearish trend at nepse. Journal of Corporate Finance Management and Banking System, 4(2), 11–24. https://doi.org/10.55529/jcfmbs.42.11.24
  • Baker, M., & Wurgler, J. (2007). Investor sentiment in the stock market. Journal of Economic Perspectives, 21(2), 129–151. https://doi.org/10.1257/jep.21.2.129
  • Barber, B. M., & Odean, T. (2001). Boys will be boys: Gender, overconfidence, and common stock investment. The Quarterly Journal of Economics, 116(1), 261–292. https://doi.org/10.1162/003355301556400
  • Chen, S. (2023). An empirical study of the impact of investor sentiment on stock returns from a behavioural finance perspective. Proceedings of the 2nd International Conference on Bigdata Blockchain and Economy Management, ICBBEM 2023, May 19–21, 2023, Hangzhou, China. https://doi.org/10.4108/eai.19-5-2023.2334284
  • Devadas, M., & Vijayakumar, D. (2019). Investment decisions, herd behaviour and retail investors. International Journal of Innovative Technology and Exploring Engineering, 8(10), 3291–3294. https://doi.org/10.35940/ijitee.j1210.0881019
  • Divanoğlu, S., & Bağcı, H. (2018). Determining the factors affecting individual investors’ behaviours. International Journal of Organizational Leadership, 7(3), 284–299. https://doi.org/10.33844/ijol.2018.60407
  • Fama, E. F. (1970). Efficient capital markets: A review of theory and empirical work. The Journal of Finance, 25(2), 383–417. https://doi.org/10.2307/2325486
  • Fikriyah, T. (2023). Analysis of factors that influence investment decisions with financial literacy as a moderating variable. Indonesian Journal of Business Analytics, 3(4), 1363–1376. https://doi.org/10.55927/ijba.v3i4.5200
  • Herwiyanti, E., Suwito, G., & Astuti, T. (2023). Investment decisions in the capital market: Perceptions of Christian students. Journal of Economics Finance and Management Studies, 6(7), 3162–3170. https://doi.org/10.47191/jefms/v6-i7-49
  • Husnatarina, F., Arafah, M., Andiyan, A., Azmi, Z., & Suzana, S. (2022). The Influence of Investor Intrinsic Motivation on Islamic Stock Investment Decision Making. Proceedings of the International Conference on Social, Economics, Business, and Education (ICSEBE 2021). Doi : 10.2991/aebmr.k.220107.008
  • Jain, J., Walia, N., Kaur, M., & Singh, S. (2021). Behavioural biases affecting investors’ decision-making process: A scale development approach. Management Research Review, 45(8), 1079–1098. https://doi.org/10.1108/mrr-02-2021-0139
  • Kahneman, D., & Tversky, A. (1979). Prospect theory: An analysis of decision under risk. Econometrica, 47(2), 263–291. https://doi.org/10.2307/1914185
  • Karaca, Y. (2015). Davranışsal Finans Yaklaşımı ve Bireysel Yatırımcı Davranışları Üzerine Ampirik Bir Uygulama .Gazi Üniversitesi, Sosyal Bilimler Enstitüsü, Ankara.
  • Kumari, A., Goyal, R., & Kumar, S. (2022). Review on behavioral factors and individual investors psychology towards investment decision making. ECS Transactions, 107(1), 8009–8023. https://doi.org/10.1149/10701.8009ecst
  • Kuzey, G. (2019). Bireysel yatırımcıların yatırım kararlarının davranışsal finans yönünden incelenmesi: Ankara ili örneği .Muğla Sıtkı Koçman Üniversitesi, Sosyal Bilimler Enstitüsü.
  • Lusardi, A., & Mitchell, O. S. (2011). Financial literacy around the world: An overview. Journal of Pension Economics & Finance, 10(4), 497–508. https://doi.org/10.1017/S1474747211000448
  • Lusardi, A., & Mitchell, O. S. (2014). The economic importance of financial literacy: Theory and evidence. Journal of Economic Literature, 52(1), 5–44. https://doi.org/10.1257/jel.52.1.5
  • Metwally, A. (2023). The effect of overconfidence bias on investors decisions in the Egyptian stock market: The role of information acquisition. Alexandria University Journal of Administrative Sciences, 60(2), 47–85. https://doi.org/10.21608/acj.2023.294144
  • Nunnally, J. C. (1978). Psychometric theory (2nd ed.). McGraw-Hill.
  • Rauf, A., Khurshid, M., & Afzal, M. (2018). Impact of overconfidence and loss aversion biases on equity investor’s decision-making process and performance. Nice Research Journal, 11(1), 156–180. https://doi.org/10.51239/nrjss.v0i0.76
  • Sachdeva, M., Lehal, R., Gupta, S., & Garg, A. (2021). What make investors herd while investing in the Indian stock market? A hybrid approach. Review of Behavioral Finance, 15(1), 19–37. https://doi.org/10.1108/rbf-04-2021-0070
  • Sapkota, M. (2023). Emotional biases and equity investment decision of individual investors. Journal of Business Management Review, 4(1), 036–049. https://doi.org/10.47153/jbmr41.5682023
  • Sapkota, M., & Chalise, D. (2023). Investors’ behavior and equity investment decision: An evidence from Nepal. Binus Business Review, 14(2), 209–221. https://doi.org/10.21512/bbr.v14i2.9575
  • Shah, S., Ahmad, M., & Mahmood, F. (2018). Heuristic biases in investment decision-making and perceived market efficiency; A survey at the Pakistan stock exchange. Qualitative Research in Financial Markets, 10(1), 85–110. https://doi.org/10.1108/qrfm-04-2017-0033
  • Shefrin, H. (2002). Beyond greed and fear: Understanding behavioral finance and the psychology of investing. Harvard Business School Press.
  • Shiller, R. J. (2000). Irrational exuberance. Princeton University Press.
  • Shiller, R. J. (2003). From efficient markets theory to behavioral finance. Journal of Economic Perspectives, 17(1), 83–104. https://doi.org/10.1257/089533003321164967
  • Statman, M. (2008). What is behavioral finance? In Handbook of finance. https://doi.org/10.1002/9780470404324.hof002009
  • Thaler, R. H. (1993). Advances in behavioral finance. Russell Sage Foundation.
  • Tversky, A., & Kahneman, D. (1992). Advances in prospect theory: Cumulative representation of uncertainty. Journal of Risk and Uncertainty, 5(4), 297–323. https://doi.org/10.1007/BF00122574
  • Zhang, Y. (2023). The impact of investors overconfidence bias on investment strategy based on behavioral finance. Advances in Economics Management and Political Sciences, 8(1), 114–119. https://doi.org/10.54254/2754-1169/8/20230292
  • Zhou, X. (2023). Theoretical discussion on individual investor behavior from a quantitative finance perspective: Possibilities for machine learning applications. Open Journal of Business and Management, 11(6), 2802–2810. https://doi.org/10.4236/ojbm.2023.116153

Bireysel Yatırımcıların Yatırım Kararlarının Davranışsal Finans Yönünden İncelenmesi

Yıl 2025, Cilt: 10 Sayı: 3, 969 - 993, 29.10.2025
https://doi.org/10.25229/beta.1643860

Öz

Bu çalışma, Türkiye’nin Güneydoğu Anadolu Bölgesi’nde (Diyarbakır, Bingöl, Mardin) yaşayan 542 bireysel yatırımcının yatırım kararlarını davranışsal finans perspektifinden incelemektedir. Veriler, bölgenin düşük okuryazarlık düzeyi ve sınırlı dijital erişimine uygun olarak yüz yüze görüşmelerle yapılandırılmış bir anket yoluyla toplanmıştır. Demografik faktörler (cinsiyet, medeni durum, yaş, meslek, gelir, eğitim) ile davranışsal finans eğilimleri arasındaki ilişkiler t-testleri ve ANOVA ile analiz edilmiştir. Cinsiyet, medeni durum, yaş, meslek ve gelir ile davranışsal finans eğilimleri arasında anlamlı bir ilişki bulunmamıştır. Ancak, eğitim düzeyi ile davranışsal finans eğilimleri arasında anlamlı bir ilişki ortaya çıkmıştır (p=0.010); post-hoc testler, lise mezunlarının ilkokul mezunlarına kıyasla aşırı güven ve kayıptan kaçınma gibi bilişsel önyargılara daha az eğilim gösterdiğini göstermiştir. Ayrıca, bölgedeki yatırımcıların muhafazakâr bir yaklaşım sergileyerek altın (%32,3) ve gayrimenkul (%24,4) gibi geleneksel araçları tercih ettiği, bu tercihin kültürel etkiler ve riskten kaçınma eğiliminden kaynaklandığı belirlenmiştir. Bu bulgular, sosyo-ekonomik olarak dezavantajlı bölgelerde finansal okuryazarlığın bilişsel önyargıları azaltmadaki kritik rolünü vurgular ve hedefe yönelik finansal eğitim programlarına yönelik içgörüler sunar.

Kaynakça

  • Afriany, A., Putranti, L., Herdiany, H., & Tisya, V. (2022). Covid 19: Investment decisions of individual investor based on behavioral finance factors. Proceedings of the 1st UPY International Conference on Education and Social Science (UPINCESS 2022). Advances in Social Science, Education and Humanities Research https://doi.org/10.2991/978-2-494069-39-8_9
  • Anshu, P. (2024). Behavioral biases influencing individual investors decision making in bearish trend at nepse. Journal of Corporate Finance Management and Banking System, 4(2), 11–24. https://doi.org/10.55529/jcfmbs.42.11.24
  • Baker, M., & Wurgler, J. (2007). Investor sentiment in the stock market. Journal of Economic Perspectives, 21(2), 129–151. https://doi.org/10.1257/jep.21.2.129
  • Barber, B. M., & Odean, T. (2001). Boys will be boys: Gender, overconfidence, and common stock investment. The Quarterly Journal of Economics, 116(1), 261–292. https://doi.org/10.1162/003355301556400
  • Chen, S. (2023). An empirical study of the impact of investor sentiment on stock returns from a behavioural finance perspective. Proceedings of the 2nd International Conference on Bigdata Blockchain and Economy Management, ICBBEM 2023, May 19–21, 2023, Hangzhou, China. https://doi.org/10.4108/eai.19-5-2023.2334284
  • Devadas, M., & Vijayakumar, D. (2019). Investment decisions, herd behaviour and retail investors. International Journal of Innovative Technology and Exploring Engineering, 8(10), 3291–3294. https://doi.org/10.35940/ijitee.j1210.0881019
  • Divanoğlu, S., & Bağcı, H. (2018). Determining the factors affecting individual investors’ behaviours. International Journal of Organizational Leadership, 7(3), 284–299. https://doi.org/10.33844/ijol.2018.60407
  • Fama, E. F. (1970). Efficient capital markets: A review of theory and empirical work. The Journal of Finance, 25(2), 383–417. https://doi.org/10.2307/2325486
  • Fikriyah, T. (2023). Analysis of factors that influence investment decisions with financial literacy as a moderating variable. Indonesian Journal of Business Analytics, 3(4), 1363–1376. https://doi.org/10.55927/ijba.v3i4.5200
  • Herwiyanti, E., Suwito, G., & Astuti, T. (2023). Investment decisions in the capital market: Perceptions of Christian students. Journal of Economics Finance and Management Studies, 6(7), 3162–3170. https://doi.org/10.47191/jefms/v6-i7-49
  • Husnatarina, F., Arafah, M., Andiyan, A., Azmi, Z., & Suzana, S. (2022). The Influence of Investor Intrinsic Motivation on Islamic Stock Investment Decision Making. Proceedings of the International Conference on Social, Economics, Business, and Education (ICSEBE 2021). Doi : 10.2991/aebmr.k.220107.008
  • Jain, J., Walia, N., Kaur, M., & Singh, S. (2021). Behavioural biases affecting investors’ decision-making process: A scale development approach. Management Research Review, 45(8), 1079–1098. https://doi.org/10.1108/mrr-02-2021-0139
  • Kahneman, D., & Tversky, A. (1979). Prospect theory: An analysis of decision under risk. Econometrica, 47(2), 263–291. https://doi.org/10.2307/1914185
  • Karaca, Y. (2015). Davranışsal Finans Yaklaşımı ve Bireysel Yatırımcı Davranışları Üzerine Ampirik Bir Uygulama .Gazi Üniversitesi, Sosyal Bilimler Enstitüsü, Ankara.
  • Kumari, A., Goyal, R., & Kumar, S. (2022). Review on behavioral factors and individual investors psychology towards investment decision making. ECS Transactions, 107(1), 8009–8023. https://doi.org/10.1149/10701.8009ecst
  • Kuzey, G. (2019). Bireysel yatırımcıların yatırım kararlarının davranışsal finans yönünden incelenmesi: Ankara ili örneği .Muğla Sıtkı Koçman Üniversitesi, Sosyal Bilimler Enstitüsü.
  • Lusardi, A., & Mitchell, O. S. (2011). Financial literacy around the world: An overview. Journal of Pension Economics & Finance, 10(4), 497–508. https://doi.org/10.1017/S1474747211000448
  • Lusardi, A., & Mitchell, O. S. (2014). The economic importance of financial literacy: Theory and evidence. Journal of Economic Literature, 52(1), 5–44. https://doi.org/10.1257/jel.52.1.5
  • Metwally, A. (2023). The effect of overconfidence bias on investors decisions in the Egyptian stock market: The role of information acquisition. Alexandria University Journal of Administrative Sciences, 60(2), 47–85. https://doi.org/10.21608/acj.2023.294144
  • Nunnally, J. C. (1978). Psychometric theory (2nd ed.). McGraw-Hill.
  • Rauf, A., Khurshid, M., & Afzal, M. (2018). Impact of overconfidence and loss aversion biases on equity investor’s decision-making process and performance. Nice Research Journal, 11(1), 156–180. https://doi.org/10.51239/nrjss.v0i0.76
  • Sachdeva, M., Lehal, R., Gupta, S., & Garg, A. (2021). What make investors herd while investing in the Indian stock market? A hybrid approach. Review of Behavioral Finance, 15(1), 19–37. https://doi.org/10.1108/rbf-04-2021-0070
  • Sapkota, M. (2023). Emotional biases and equity investment decision of individual investors. Journal of Business Management Review, 4(1), 036–049. https://doi.org/10.47153/jbmr41.5682023
  • Sapkota, M., & Chalise, D. (2023). Investors’ behavior and equity investment decision: An evidence from Nepal. Binus Business Review, 14(2), 209–221. https://doi.org/10.21512/bbr.v14i2.9575
  • Shah, S., Ahmad, M., & Mahmood, F. (2018). Heuristic biases in investment decision-making and perceived market efficiency; A survey at the Pakistan stock exchange. Qualitative Research in Financial Markets, 10(1), 85–110. https://doi.org/10.1108/qrfm-04-2017-0033
  • Shefrin, H. (2002). Beyond greed and fear: Understanding behavioral finance and the psychology of investing. Harvard Business School Press.
  • Shiller, R. J. (2000). Irrational exuberance. Princeton University Press.
  • Shiller, R. J. (2003). From efficient markets theory to behavioral finance. Journal of Economic Perspectives, 17(1), 83–104. https://doi.org/10.1257/089533003321164967
  • Statman, M. (2008). What is behavioral finance? In Handbook of finance. https://doi.org/10.1002/9780470404324.hof002009
  • Thaler, R. H. (1993). Advances in behavioral finance. Russell Sage Foundation.
  • Tversky, A., & Kahneman, D. (1992). Advances in prospect theory: Cumulative representation of uncertainty. Journal of Risk and Uncertainty, 5(4), 297–323. https://doi.org/10.1007/BF00122574
  • Zhang, Y. (2023). The impact of investors overconfidence bias on investment strategy based on behavioral finance. Advances in Economics Management and Political Sciences, 8(1), 114–119. https://doi.org/10.54254/2754-1169/8/20230292
  • Zhou, X. (2023). Theoretical discussion on individual investor behavior from a quantitative finance perspective: Possibilities for machine learning applications. Open Journal of Business and Management, 11(6), 2802–2810. https://doi.org/10.4236/ojbm.2023.116153
Toplam 33 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Davranışsal İktisat
Bölüm Araştırma Makaleleri
Yazarlar

Muhammed Fatih Yürük 0000-0001-7429-2278

Erken Görünüm Tarihi 20 Ekim 2025
Yayımlanma Tarihi 29 Ekim 2025
Gönderilme Tarihi 20 Şubat 2025
Kabul Tarihi 5 Temmuz 2025
Yayımlandığı Sayı Yıl 2025 Cilt: 10 Sayı: 3

Kaynak Göster

APA Yürük, M. F. (2025). An Examination of Individual Investors’ Investment Decisions from a Behavioral Finance Perspective. Bulletin of Economic Theory and Analysis, 10(3), 969-993. https://doi.org/10.25229/beta.1643860

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