7 results on '"johansen eşbütünleşme"'
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2. IS ECONOMIC GROWTH A PROBLEM IN TERMS OF CURRENT ACCOUNT DEFICIT? AN EMPIRICAL APPROACH TO VICIOUS CIRCLE: CASE OF TURK.
- Author
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ÇİĞDEM, Gülgün
- Abstract
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- Published
- 2019
3. TURİZM SEKTÖRÜNÜN TÜRKİYE'NİN EKONOMİK BÜYÜMESİ ÜZERİNDEKİ ETKİSİ: 1963-2011.
- Author
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TOPALLI, Nurgün
- Subjects
- *
TOURISM research , *ECONOMIC development , *COINTEGRATION , *GRANGER causality test , *VECTOR error-correction models ,ECONOMIC conditions in Turkey, 1960- - Abstract
Tourism is recognized as one of the important service sector of countries in economic and social majors. The purpose of this study is to investigate the relationship between tourism and economic growth for Turkey. In the study, the relationship between tourism and economic growth for the period 1963-2011 were examined through the Johansen cointegration test and the Toda Yamamoto causality test. According to Johansen cointegration test in the long run there is a cointegration realitionship between tourism and economic growth. Granger causality test based on VECM model indicated that there was uni-directional relationship from tourism to economic growth but the results which derived from Toda-Yamomato causality test indicated that in Turkey there was no causality from tourism to economic growth or no causality from economic growth to tourism. [ABSTRACT FROM AUTHOR]
- Published
- 2015
4. BİST Endeksleri ile Kurumsal Yönetim Endeksi Arasındaki Volatilite İlişkisinin İncelenmesi Investigation of Volatility Relation Between BIST Indexes and Corporate Governance Index
- Author
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Emre Çevik, Ömer Faruk Güleç, and Raif Cergibozan
- Subjects
Volatilite ,ARCH-GARCH ,Cointegration ,Kurumsal Yönetim ,Corporate governance ,VECM Granger Causality ,lcsh:Business ,Johansen Eşbütünleşme ,VECM Granger Nedensellik ,Corporate Governance ,Granger causality ,Volatility ,Econometrics ,Unit root ,Johansen Cointegration ,Volatility (finance) ,lcsh:HF5001-6182 ,Johansen test ,Mathematics - Abstract
Bu çalışma temel Borsa İstanbul endeksleri ile kurumsal yönetim endeksi (XKURY) arasındaki volatilite yayılımı ve uzun dönemli ilişkiyi test etmektedir. Endeksler arasındaki uzun dönemli ilişki Johansen Eşbütünleşme testi ile sınanmış ve zaman serilerinin durağanlığı ADF ve PP birim kök testleri ile tespit edilmiştir. Çalışma sonuçlarına göre, en yüksek getiriye sahip endeks XKURY ve en yüksek volatiliteye sahip endeks BİST 30 olarak belirlenmiştir. XKURY, BİST100, BİST50 ve BİST30 endeksleri arasındaki eşbütünleşme ilişkileri ayrı olarak tahmin edilmiştir. Tahmin sonuçlarına göre, en yüksek ayarlama (yakınsama) hızına sahip değişkenler XKURY ve BİST50'dir. Granger nedensellik sonuçlarına göre, XKURY, BİST100'ün Granger nedeni değilken, BİST100 XKURY Granger nedenidir. Diğer değişkenler arasında iki yönlü bir nedensellik vardır. Nedenselliğin yönünün en güçlü olduğu ilişki BİST30’un XKURY üzerine olan ilişkisi üzerinedir. Kurumsal yönetim endeksine dâhil olan şirketler göreceli daha yüksek getiriye ve daha düşük volatiliteye sahiptir. This study tests the volatility spread and long-term relationship between Borsa Istanbul indexes and Corporate Governance Index (XKURY). The long-run relationship between the indexes is analyzed by the Johansen Cointegration test and the stationarity of time series is investigated by ADF and PP unit root tests. According to the study results, the index with the highest return is XKURY and the index with the highest volatility is BIST 30. The cointegration relations between XKURY, BIST100, BIST50 and BIST30 indexes are separately estimated. According to the estimation results, the variables with the highest speed of adjustment (cointegration) are XKURY and BIST50. According to the results of Granger Causality, XKURY is not the Granger cause of BIST100 but BIST100 is the Granger cause of XKURY. Among other variables, there is a two-way causality. Firms included in the corporate governance index have relatively higher return and lower volatility.
- Published
- 2018
5. TEKSTİL VE KONFEKSİYON İHRACATININ TALEP FONKSİYONU DEMAND FUNCTION OF TEXTILE AND APPAREL EXPORT.
- Author
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HATIRLI, Selim Adem, OĞUZTüRK, Bekir Sami, ÖNDER, Kübra, and DEMİREL, Onur
- Subjects
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TEXTILE industry , *EXPORTS , *FOREIGN exchange rates , *EURO , *COINTEGRATION , *TIME series analysis - Abstract
The most important factors influencing the export performance of the textile-apparel industry are the foreign income level, real exchange rate and relative prices. In the study, the function of textile-apparel industry exports is investigated by using monthly data, covering 1998-2011. For the variables of textile-apparel industry export, real exchange rate, Euro area of industrial production index and relative prices, first of all ADF unit root tests are carried out. All of the variables are found to be same degree integrated. Thus, long run relations among the variables are examined in the framework of Johansen co-integration analysis. In accordance with the long run relation explored, vector correction model (VECM) is estimated. In conclusion, some evidence are found that there is a long-run relationship among textile-apparel industry, the real exchange rate, Euro area of industrial production index and relative prices. [ABSTRACT FROM AUTHOR]
- Published
- 2012
6. Estimation of oil and natural gas import demand functions in Turkey
- Author
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Özbey, Ali Can, Çatık, A. Nazif, and Ege Üniversitesi, Sosyal Bilimler Enstitüsü, İktisat, Ana Bilim Dalı
- Subjects
Eşbütünleşme ,ARDL Bound Test ,Petrol İthalat Talebi ,Natural Gas Import Demand ,Cointegration ,Doğal Gaz İthalat Talebi ,ARDL Sınır Testi ,Johansen Cointegration ,Oil Import Demand ,Johansen Eşbütünleşme - Abstract
Bu çalışmada, Türkiye’nin petrol ve doğal gaz ithalat talebinin uzun dönemli gelir ve fiyat esnekliklerinin tahmin edilmesi amaçlanmıştır. Bu çerçevede, enerji ithalatı, GSYİH ve enerji fiyatlarının olduğu zaman serisi modelleri tahmin edilmiştir. Eşbütünleşme ilişkisinin varlığı, Johansen eşbütünleşme yaklaşımı ile Otoregresif Gecikmesi Dağıtılmış (ARDL) modeli üzerinden yapılan sınır testi ile araştırılmıştır. Elde edilen sonuçlara göre her iki modelde de değişkenler arasında anlamlı bir eşbütünleşme ilişkisinin olduğu görülmektedir. Petrol ve doğal gaz ithalat talebinin gelir esnekliği, istatiksel olarak anlamlı olup Johansen yaklaşımına göre sırasıyla 0.474 ve 1.549 iken, ARDL yaklaşımına göre sırasıyla 0.504 ve 1.147 olarak bulunmuştur. Dolayısıyla, Türkiye'de petrol talebi gelir esnek değilken, doğal gaz talebi gelir esnektir. Petrol talebinin fiyat esnekliği, ARDL sınır testi sonuçlarına göre istatistiksel olarak anlamlı bulunmasına rağmen katsayısal olarak oldukça düşük (−0.06) bulunmuştur. Doğal gaz talebinin fiyat esnekliği ise talep kanuna ilişkin önsel beklentilerin aksine Johansen ve ARDL yaklaşımlarına göre sırasıyla, 0.575 ve 0.423 olarak elde edilmiştir. Pozitif ve anlamlı doğal gaz fiyat esnekliğine dair kanıtlar, Türkiye'de doğal gazın bir Giffen malı olarak kabul edilebileceğini göstermektedir. Ayrıca, doğal gaz ithalat talebinin gelir esnekliğinin petrol talebinden daha yüksek olması Türkiye'nin reel gelirindeki artışın petrol ithalatına kıyasla doğal gaz ithalat talebini daha yüksek oranda arttırdığını ima etmektedir., This study aims to estimate long-run income and price elasticities of Turkey’s import demand for oil and natural gas. In this context, time series models composed of the variables oil and natural imports, GDP and oil and natural gas prices are estimated. The existence of the cointegration relationship is investigated with Johansen cointegration approach and the Autoregressive Distributed Lag (ARDL) bound testing model. Both methodologies confirm the presence of a long run relationship among the variables for both oil and natural gas import demand equations. According to Johansen approach, income elasticity of oil and natural gas import demand is statistically significant and obtained as 0.474 and 1.549, respectively. The respective parameters are estimated as 0.504 and 1.147 based on ARDL approach. Hence, one can conclude that the demand for oil is not income elastic, whereas the demand for natural gas is elastic with respect to income in Turkey. The price elasticity of oil demand is found be negative and statistically significant according to ARDL model, though it is inelastic. Price elasticity of oil import demand according to Johansen cointegration is close to zero similar to ARDL results but it is statistically insignificant. In contrast with the prior expectation, price elasticity of natural gas is estimated as 0.575 and 0.423, respectively, according to Johansen and ARDL approaches. The evidence on the positive and significant natural gas price elasticity implies that natural gas in Turkey can be considered as a Giffen good. Income elasticity of natural gas import demand is higher than that of oil import demand, is implied that an increase in real income in Turkey give rise to higher rate of increase on natural gas imports compared to oil imports.
- Published
- 2020
7. Test for cointegration and causality between ISE and emerging market ındices; diversification opportunities for ınvestorsBİST ile yükselen piyasalara ait endeksler arasındaki eş bütünleşme ve nedenselliğin test edilmesi; yatırımcılar açısından çeşitlendirme fırsatları
- Author
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Umut Burak Geyikçi
- Subjects
Cointegration ,Economy ,Granger causality ,Finance ,Economics ,International Finance ,Finans ,Ekonomi ,Uluslararası Finans ,Cusum test ,İnternational Finance Classification ,Uluslararası Finans Sınıflandırması ,Emerging markets ,Johansen test ,Humanities ,Johansen Eşbütünleşme ,Vektör Hata Düzeltme ,Yükselen Piyasalar ,BİST, Birim Kök ,Zvot-Andrews - Abstract
It was aimed to show the diversification possibilities that investors can catch in terms of emerging markets in the study. Within the scope of the study, the emerging markets of Turkey, Europe, Asia and America were compared. A total of 12 markets, 4 from Europe, 1 from the Americas and 7 from Asia were selected. Monthly closing values for the capital market were used for 16 years period (176 observations) for July 2002 - June 2017. The series were tested with the ADF, PP and Zivot andrews unit root tests, then Johansen Cointegration test and Wector Erroro Correction/Granger Causality test were used after it was found that there was no structural break with the Cusum test. As a result of the research, all the markets are found cointegrated in the long term. In a short term it is found that Turkey has mutual causality with Thailand, Russia, Poland, Brazil and also Taiwan, Malaysia and Czechia have one-way causality with Turkey. As a result, it can be said that there is no short-term causality relation with some emerging markets with the ISE and that it is possible to diversify in the short term in terms of investors. Extended English abstract is in the end of PDF (TURKISH) file . Ozet Bu calisma ile yatirimcilarin yukselen piyasalar acisindan yakalayabilecekleri cesitlendirme imkanlari ortaya konmaya calisilmistir. Calisma kapsaminda Turkiye ile Avrupa, Asya ve Amerika kitasinda yer alan yukselen piyasalar karsilastirilmistir. Bu amacla 4’u Avrupadan, 1’i Amerikadan, 7’si de Asyadan olmak uzere toplamda 12 piyasa secilmistir. Temmuz 2002 – Haziran 2017 donemine ait 16 yillik periyotta (176 gozlem) sermaye piyasasina ait aylik kapanis degerleri kullanilmistir. Gerceklestirilen calismada once ADF, PP ve Zivot-Andrews birim kok testleri ile seriler test edilmis, sonrasinda Cusum testi ile yapisal kirilma olmadigi anlasildiktan sonra, Johansen Esbutunlesme testi ve ardindan da Vektor Hata Duzeltme/Granger Nedensellik Testi kullanilmistir. Arastirma neticesinde incelenen tum piyasalarin uzun donemde esbutunlesik olduklari, kisa donemde ise Turkiye’nin Taylan, Rusya, Polonya ve Brezilya ile karsilikli, Tayvan, Malezya ve Cekya’nin ise Turkiye ile tek yonlu bir nedensellik iliskisinde oldugu tespit edilmistir. Bu cercevede, BIST’in inceleme kapsamindaki bazi yukselen piyasalarla kisa donemde nedensellik iliskisi bulunmadigi ve yatirimcilar acisindan kisa vadede hali hazirda bir cesitlendirme imkani sundugu soylenebilmektedir.
- Published
- 2017
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