Bu çalışmanın amacı, korku endeksi (VIX endeksi) ile Türkiye hisse senedi piyasası ve döviz kurları arasındaki ilişkileri ampirik olarak analiz etmektir. VIX şokunun BIST-100 ve dolar kuru üzerindeki dinamik etkileri etkitepki fonksiyonları ve varyans ayrıştırması yoluyla belirlenmiş ve son olarak değişkenler arası nedensellik ilişkisi Granger nedensellik yöntemiyle incelenmiştir. Etki ve tepki fonksiyonları, korku endeksi şokunun BIST-100 üzerinde negatif, dolar kuru üzerinde pozitif etkisi olduğunu göstermiştir. Varyans ayrıştırması analizi, VIX'in dolar kurunun öngörü hata varyansını açıklama oranının BIST'e kıyasla daha büyük olduğunu ortaya koymuştur. Nedensellik analizine göre ise, VIX'ten BIST-100'e ve dolar kuruna doğru bir nedensellik vardır.
Bu çalışmanın amacı; BIST100 Endeksi, ABD Doları ve VIX Endeksi'nin 02.01.2009-12.11.2018 dönemi günlük verileri aracılığıyla, pay senedi piyasaları ve döviz kuru piyasası oynaklıkları arasındaki risk transfer mekanizmasını asimetrik nedensellik yöntemi ile ele almaktır. Belirlenen piyasa dinamikleri risk transferinin varlığı, Hatemi-J (2012) asimetrik nedensellik yaklaşımıyla araştırılmıştır. Bulgular, risk transferinde asimetrik nedenselliğe yönelik kanıtlar göstermektedir. Buna göre VIX'in pozitif oynaklığından BIST100'ün negatif oynaklığına; ABD Dolarının pozitif oynaklığından BIST100'ün hem pozitif hem negatif oynaklığına ve BIST100'ün negatif oynaklığından ABD Dolarının negatif oynaklığına nedensellik ilişkisi tespit edilmiştir.
The aim of this study is to examine the relationship between economic growth and tourism revenues in Turkey within the scope of the tourism-led growth hypothesis with the help of tests that take into account structural breaks. In this context, causality and cointegration tests based on the Fourier approach were used by considering the industrial production index, tourism revenues and real effective exchange rate data for the January 2005-December 2019 period. The results of the causality test revealed that, unlike the Granger causality test, which does not take into account the structural break, the results of the causality tests that take into account the structural break have a unidirectional causality relationship from tourism revenues to economic growth. Similarly, contrast to the Johansen test, which does not take into account the break in the cointegration analysis, the Fourier Johansen test detected the existence of a long-term relationship between economic growth, tourism revenues and the real exchange rate. In addition, the long-term cointegration estimation showed that tourism revenues have a positive and statistically significant effect on economic growth.
The aim of this paper is to empirically investigate financial contagion between developed and emerging markets and Turkish stock market. With this purpose, daily closing values of Turkish (BIST100), US (SPX), German (DAX), Brazilian (IBOV), Russian (RTSI), Indian (NIFTY), Chinese (SHCOMP) market indexes for the period 04.01.2000-12.11.2019 have been used in cointegration and causality analyses, where the latter takes into account structural breaks endogenously. While findings of co-integration analysis demonstrate tendency of Turkish stock market to move together with developed markets SPX and DAX, and with NIFTY from among emerging ones, allowing for structural breaks has been found significant in terms of methodological perspective. Findings from causality analysis, on the other hand, indicate presence of various causality relations among markets, including unilateral relations from SPX and DAX to BIST100, bilateral relations of BIST100 with IBOV and NIFTY, and unilateral ones of RTSI and SHCOMP with BIST100 index. Our analyses in general point out contagion to Turkish market from both developed markets and Russia and China from among emerging markets, moreover mutual interdependence between Turkey and the emerging markets of Brazil and India.
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