TY - JOUR T1 - Yüksek Enflasyonda Farklı Varlık Sınıflarının Performansı ve Etkin Portföy Yönetimi TT - PERFORMANCE OF DIFFERENT ASSET CLASSES AND EFFECTIVE PORTFOLIO MANAGEMENT DURING HIGH INFLATION AU - Yerli, Çiğdem PY - 2025 DA - June Y2 - 2025 DO - 10.17130/ijmeb.1563207 JF - Uluslararası Yönetim İktisat ve İşletme Dergisi JO - ijmeb PB - Zonguldak Bulent Ecevit University WT - DergiPark SN - 2147-9208 SP - 625 EP - 648 VL - 21 IS - 2 LA - tr AB - Son yıllarda Türkiye'de yaşanan yüksek enflasyon, yatırımcıların reel değerini koruyabilen yatırım araçlarına olan ihtiyacını artırmıştır. Bu nedenle, enflasyona göre ayarlanmış portföylerin oluşturulması önem kazanmıştır. Bu çalışma, Mayıs 2013 ile Ağustos 2024 dönemini kapsayan bir veri seti kullanarak—enflasyon, BIST100, USD/TRY döviz kuru, altın fiyatları ve Türkiye Konut Fiyat Endeksi—bu ihtiyacı yanıtlamayı amaçlamıştır. Özellikle USDTRY, enflasyona karşı koruma aracı olarak literatürde sınırlı sayıda incelenmiş olup, bu çalışmaya dahil edilerek önemli bir katkı sağlanmıştır. Varlık getirilerinin enflasyon ile ilişkisi Fisher denklemiyle incelenmiştir. Regresyon sonuçları, dövizin ve altının enflasyona karşı koruma potansiyeline sahip olduğunu, ancak konut getirilerinin en güçlü korumayı sağladığını ortaya koymuştur. BIST100'ün enflasyona karşı anlamlı bir koruma sağlamadığı gözlenmiştir. Daha sonra, klasik ortalama-varyans modeli yerine enflasyona göre ayarlanmış ortalama-varyans optimizasyonu kullanılarak portföy oluşturulmuştur; böylece reel getiriye göre optimizasyon hedeflenmiştir. Enflasyonun portföy getiri ve risk hesaplamalarına doğrudan dahil edilmesini sağlamak önemli bir katkı sunmaktadır. Böylece, yatırımcıların enflasyon etkisini minimize eden ve reel getiriyi maksimize eden daha etkili bir portföy stratejisi geliştirilmiştir. Portföyün kümülatif getirisi enflasyonu önemli ölçüde aşmış ve yatırımcılara reel getiri sunmuştur. Özellikle 2023 yılından itibaren portföy getirilerinin enflasyonu aşması, yatırımcılar için enflasyonist baskılar karşısında etkin bir koruma sağlamıştır. Bu çalışma, enflasyon riskini azaltmaya yönelik etkili stratejiler geliştirilmesine katkıda bulunmaktadır. KW - Enflasyon Koruma KW - Portföy Optimizasyonu KW - BIST100 KW - Altın KW - Gayrimenkul N2 - In recent years, the high inflation in Turkey has increased the need for investment instruments that can preserve real value. As a result, creating inflation-adjusted portfolios has become increasingly important. This study aims to address this need by using data from May 2013 to August 2024, including inflation, the BIST100 index, USD/TRY exchange rates, gold prices, and the Turkey Property Price Index. Notably, USD/TRY has been rarely examined in the literature as an inflation hedge, making its inclusion in this study a significant contribution. The relationship between asset returns and inflation was analyzed using the Fisher equation. The regression results show that foreign exchange and gold have the potential to hedge against inflation, while real estate offers the strongest protection. In contrast, the BIST100 index did not provide significant protection against inflation. The portfolio was constructed using inflation-adjusted mean-variance optimization instead of the classical model, targeting real returns. Incorporating inflation directly into portfolio return and risk calculations adds a crucial benefit. This approach led to the development of a more effective portfolio strategy that minimizes inflation’s impact and maximizes real returns. The cumulative return of the portfolio significantly exceeded inflation, particularly from 2023 onwards, providing investors with strong protection against inflationary pressures. CR - Aktürk, H. (2016). Do stock returns provide a good hedge against inflation? An empirical assessment using Turkish data during periods of structural change. International Review of Economics & Finance, 45, 230-246. https://doi.org/10.1016/j.iref.2016.06.002 CR - Amonhaemanon, D., De Ceuster, M. J., Annaert, J., & Le Long, H. (2013). The inflation-hedging ability of real estate evidence in Thailand: 1987-2011. Procedia Economics and Finance, 5, 40-49. https://doi.org/10.1016/S2212-5671(13)00007-5 CR - Anari, A., ve Kolari, J. (2001). Stock prices and inflation. Journal of Financial Research, 24(4), 587–602. https://doi.org/10.1111/j.1475-6803.2001.tb00832.x CR - Anari, A., & Kolari, J. (2002). House prices and inflation. Real Estate Economics, 30(1), 67-84. https://doi.org/10.1111/1540-6229.00030 CR - Ang, A., Brière, M., & Signori, O. (2012). Inflation and individual equities. Financial Analysts Journal,68(4), 36–55. https://doi.org/10.2469/faj.v68.n4.3 CR - Arnold, S., & Auer, B. R. (2015). What do scientists know about inflation hedging?. The North American Journal of Economics and Finance, 34, 187-214. https://doi.org/10.1016/j.najef.2015.08.005 CR - Attié, A. P., & Roache, S. K. (2009). Inflation hedging for long-term investors. International Monetary Fund, Finance Department. CR - Aye G. C., Carcel H., Gil-Alana L. A., & Gupta R. (2017). Does gold act as a hedge against inflation in the UK? Evidence from a fractional cointegration approach over 1257 to 2016. Resources Policy, 54, 53-57. http://dx.doi.org/10.1016/j.resourpol.2017.09.001 CR - Barkham, R. J., Ward, C. W., & Henry, O. T. (1996). The inflation‐hedging characteristics of UK property. Journal of Property Finance, 7(1), 62-76. https://doi.org/10.1108/09588689610111629 CR - Batten, J. A., Ciner, C., & Lucey, B. M. (2014). On the economic determinants of the gold–inflation relation. Resources Policy, 41, 101-108. https://doi.org/10.1016/j.resourpol.2014.03.007 CR - Baur, D. G. (2011). Explanatory mining for gold: Contrasting evidence from simple and multiple regressions. Resources Policy, 36(3), 265–275. https://doi.org/10.1016/j.resourpol.2011.03.003 CR - Beckmann, J., & Czudaj, R. (2013). Gold as an inflation hedge in a time-varying coefficient framework. The North American Journal of Economics and Finance, 24, 208–227. https://doi.org/10.1016/j.najef.2012.10.007 CR - Bekaert, G., & Wang, X. (2010). Inflation risk and the inflation risk premium. Economic Policy, 25(64), 755–806. https://doi.org/10.1111/j.1468-0327.2010.00253.x CR - Bodie, Z. (1976). Common stocks as a hedge against inflation. The Journal of Finance, 31(2), 459-470. https://doi.org/10.1111/j.1540-6261.1976.tb01899.x CR - Boudoukh, J., & Richardson, M. (1993). Stock returns and inflation: A long‐horizon perspective. The American Economic Review, 83(5), 1346–1355. CR - Bourassa, S. C., Hoesli, M., Scognamiglio, D., & Zhang, S. (2011). Land leverage and house prices. Regional Science and Urban Economics, 41(2), 134-144. https://doi.org/10.1016/j.regsciurbeco.2010.11.002 CR - Brière, M., & Signori, O. (2013). Hedging inflation risk in a developing economy: The case of Brazil. Research in International Business and Finance, 27(1), 209-222. https://doi.org/10.1016/j.ribaf.2012.04.003 CR - Brown, K. C., & Howe, J. S. (1987). On the use of gold as a fixed income security. Financial Analysts Journal, 43(4), 73-76. https://doi.org/10.2469/faj.v43.n4.73 CR - Chatrath, A., & Liang, Y. (1998). REITs and inflation: a long-run perspective. Journal of Real Estate Research, 16(3), 311-326. https://doi.org/10.1080/10835547.1998.12090955 CR - Christou, C., Gupta, R., Nyakabawo, W., & Wohar, M. E. (2018). Do house prices hedge inflation in the US? A quantile cointegration approach. International Review of Economics & Finance, 54, 15-26. https://doi.org/10.1016/j.iref.2017.12.012 CR - Chua, J., & Woodward, R. S. (1982). Gold as an inflation hedge: a comparative study of six major industrial countries. Journal of Business Finance & Accounting, 9(2), 191-197. https://doi.org/10.1111/j.1468-5957.1982.tb00985.x CR - Ciner, C. (2015). Are equities good inflation hedges? A frequency domain perspective. Review of Financial Economics, 24, 12–17. https://doi.org/10.1016/j.rfe.2014.12.001 CR - Dempster, N., & Artigas, J. C. (2010). Gold: Inflation hedge and long-term strategic asset. The Journal of Wealth Management, 13(2), 69. https://doi.org/10.3905/jwm.2010.13.2.069 CR - Diler, H. G. (2020). Enflasyondan korunma aracı olarak altın yatırımı. Gümüşhane Üniversitesi Sosyal Bilimler Dergisi, 11(2), 370-384. CR - Erol, I., & Tirtiroglu, D. (2008). The inflation-hedging properties of Turkish REITs. Applied Economics, 40(20), 2671-2696. https://doi.org/10.1080/00036840600970237 CR - Eyüboğlu, S., & Eyüboğlu, K. (2018). Examining the Relationship between Inflation Rate and Borsa. Anadolu University Journal of Social Sciences, 89, 99. CR - Fama, E. F., & Schwert, G. W. (1977). Asset returns and inflation. Journal of Financial Economics, 5(2), 115–146. https://doi.org/10.1016/0304-405X(77)90014-9 CR - Fisher, I. (1930). The theory of interest. New York: Macmillan. CR - Ganesan, S., & Chiang, Y. (1998). The inflation-hedging characteristics of real and financial assets in Hong Kong. Journal of Real Estate Portfolio Management, 4(1), 55-67. https://doi.org/10.1080/10835547.1998.12089548 CR - Ghosh, D., Levin, E. J., Macmillan, P., & Wright, R. E. (2004). Gold as an inflation hedge?. Studies in Economics and Finance, 22(1), 1-25. https://doi.org/10.1108/eb043380 CR - Glascock, J. L., Lu, C., & So, R. W. (2002). REIT returns and inflation: Perverse or reverse causality effects?. The Journal of Real Estate Finance and Economics, 24, 301-317. CR - Greer, R. (2005). The handbook of inflation hedging investments. New York, NY: McGraw Hill Professional. Gultekin, N. B. (1983). Stock market returns and inflation: Evidence from other countries. The Journal of Finance, 38(1), 49-65. https://doi.org/10.1111/j.1540-6261.1983.tb03625.x CR - Gunasekarage, A., Power, D. M., & Ting Zhou, T. (2008). The long‐term inflation hedging effectiveness of real estate and financial assets: A New Zealand investigation. Studies in Economics and Finance, 25(4), 267-278. https://doi.org/10.1108/10867370810918155 CR - Gürel, S. P. (2020). Hedging ability of gold, stock market and housing: The case of Turkey. İçinde M. O. Gülbahar & H. Yıldız (Ed.). Challenges in Economics and Business Studies From Researches To Practices (s. 105-116). London: IJOPEC. CR - Hamelink, F., & Hoesli, M. (1996). Swiss real estate as a hedge against inflation: new evidence using hedonic and autoregressive models. Journal of Property Finance, 7(1), 33-49. https://doi.org/10.1108/09588689610111601 CR - Hoesli, M., Lizieri, C., & MacGregor, B. (2008). The inflation hedging characteristics of US and UK investments: A multi-factor error correction approach. The Journal of Real Estate Finance and Economics, 36, 183-206. CR - Horasan, M. (2008). Enflasyonun hisse senedi getirilerine etkisi: İMKB 100 endeksi üzerine bir uygulama. Atatürk Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 12(2), 427-435. CR - Kara, E. (2021). Türkiye’de uzun dönemde altın ve enflasyon ilişkisi. Uluslararası Finans ve Bankacılık İncelemeleri, 1(1), 10-17. CR - Lee, K. N. H. (2012). Inflation and residential property markets: A bounds testing approach. International Journal of Trade, Economics and Finance, 3(3), 183. https://doi.org/10.7763/IJTEF.2012.V3.196 CR - Lee, H. K. N. (2013). A cointegration analysis of inflation and real estate returns. Journal of Real Estate Portfolio Management, 19(3), 207-223. https://doi.org/10.1080/10835547.2013.12089956 CR - Lee, H. K. N. (2021). The inflation hedging effectiveness of residential property-evidence from three emerging Asian markets. International Real Estate Review, 24(2), 221-251. CR - Lee, M., & Lee, M. (2012). Long-run inflation-hedging properties of United State equity real estate investment trusts (REITs): Before and after the structural break in the 1990. African Journal of Business Management, 6(6), 2162–2168. CR - Levin, E. R., & Wright, R. E. (2006). Short-run and long-run determinants of the price of gold. Research Study No. 32. World Gold Council. CR - Li, L.H. and Ge, C.L. (2008). Inflation and housing market in Shanghai. Property Management, 26(4), 273-288. https://doi.org/10.1108/02637470810894902 CR - Lintner, J. (1975). Inflation and security returns. The journal of finance, 30(2), 259-280. https://doi.org/10.2307/2978713 CR - Mahdavi, S., & Zhou, S. (1997). Gold and commodity prices as leading indicators of inflation: Tests of long-run relationship and predictive performance. Journal of Economics and Business, 49(5), 475-489. https://doi.org/10.1016/S0148-6195(97)00034-9 CR - Nguyen, B. T. T. (2023). Can housing investment hedge against inflation?. International Journal of Housing Markets and Analysis, 16(6), 1071-1088. https://doi.org/10.1108/IJHMA06-2022-0084. CR - Nguyen, B. T. T. (2023). How to hedge against ınflation risk in Vietnam. Economies, 11(3), 94. https://doi.org/10.21203/rs.3.rs-753285/v1 CR - Ojaghlou, M., & Satvati, R. (2021). An analysis of the relationship between inflation and gold prices: Evidence from Turkey. Bulletin of Economic Theory and Analysis, 6(2), 79-89. https://doi.org/10.25229/beta.1007869 CR - Onder, Z. (2000). High inflation and returns on residential real estate: Evidence from Turkey. Applied Economics, 32(7), 917-931. https://doi.org/10.1080/000368400322255 CR - Özaydın, O. (2021). Gelir dilimlerine ayrılmış enflasyon korumalı portföy optimizasyonu. Bankacılık ve Sermaye Piyasası Araştırmaları Dergisi, 5(11), 65-79. CR - Shahzad, S.J.H., Mensi, W., Hammoudeh, S., Sohail, A., & Al-Yahyaee, K.H. (2019). Does gold act as a hedge against different nuances of inflation? Evidence from quantile-on-quantile and causality-in quantiles approaches, Resource Policy, 62, 602-615. https://doi.org/10.1016/j.resourpol.2018.11.008 CR - Salisu, A. A., Raheem, I. D., & Ndako, U. B. (2020). The inflation hedging properties of gold, stocks and real estate: A comparative analysis. Resources Policy, 66, 101605. https://doi.org/10.1016/j.resourpol.2020.101605 CR - Sümer, L. (2023). Hedging abilities of stocks, gold, and real estate funds against inflation during COVID-19: Evidence from Türkiye. Doğuş Üniversitesi Dergisi, 24(2), 479-496. https://doi.org/10.31671/doujournal.1289675 CR - Tarbert, H. (1996). Is commercial property a hedge against inflation? A cointegration approach. Journal of Property finance, 7(1), 77-98. https://doi.org/10.1108/09588689610111638 CR - Ünal, S. (2021). Dövizin borsa İstanbul pay piyasasında yatırım yapan yatırımcılar tarafından koruma amaçlı olarak kullanılmasının etkinliği. Alanya Akademik Bakış, 5(1), 245-263. https://doi.org/10.29023/alanyaakademik.817412 CR - Wang, K.M., Lee, Y.M. & Nguyen, T.B. (2008). Asymmetric inflation hedge of housing return: A non-linear vector error correction approach. International Real Estate Review, 11(1), 65-82. CR - Worthington, A. C., & Pahlavani, M. (2007). Gold investment as an inflationary hedge: Cointegration evidence with allowance for endogenous structural breaks. Applied Financial Economics Letters, 3(4), 259-262. https://doi.org/10.1080/17446540601118301 CR - Wu, C. Y., & Pandey, V. K. (2012). The impact of housing on a homeowner's investment portfolio. Financial Services Review, 21(2). CR - Van Hoang, T. H., Lahiani, A., & Heller, D. (2016). Is gold a hedge against inflation? New evidence from a nonlinear ARDL approach. Economic Modelling, 54, 54-66. https://doi.org/10.1016/j.econmod.2015.12.013 CR - Yu, M., Gao, Q., Liu, Z., Zhou, Y., & Ralescu, D. (2015). A study on the optimal portfolio strategies under inflation. Journal of Systems Science and Information, 3(2), 111-132. https://doi.org/10.1515/JSSI-2015-0111 UR - https://doi.org/10.17130/ijmeb.1563207 L1 - https://dergipark.org.tr/en/download/article-file/4271311 ER -