PRICE EFFICIENCY IN OPTION MARKETS: AN EMPIRICAL STUDY ON IZMIR DERIVATIVES EXCHANGE


Bektas C., KARAN M. B. , Arslan O.

6th International Scientific Conference Business and Management 2010, Vilnius, Litvanya, 13 - 14 Mayıs 2010, ss.9-14 identifier

  • Doi Numarası: 10.3846/bm.2010.002
  • Basıldığı Şehir: Vilnius
  • Basıldığı Ülke: Litvanya
  • Sayfa Sayıları: ss.9-14

Özet

In this study, in order to test whether TRYUSD and TRYEUR futures contracts are price efficient in the weak form, a random walk model is utilized covering the period of 04.02.2005 and 16.01.2009. Results of the Corelogram test shows that there exists an autocorrelation within the observed values for TRYUSD futures contract, however such a finding is not obtained for TRYEUR futures contracts. Low level of coefficient of determination for TRYUSD and TRYEUR contracts supports the existence of random walk for TRYEUR contracts indicating the necessity of making different analysis for TRYUSD contracts. Our findings show that neither TRYUSD nor TRYEUR futures contracts are normally distributed. Besides, both of the contracts have leptokurtic distribution therefore we referred to the nonparametric tests, which resulted in a failure to reject existence of random walk for TRYUSD and TRYEUR contracts. Finally unit root tests results in failure to reject existence of random walk. As a conclusion, TRYEUR contracts are found to be more volatile than TRYUSD contracts in the IDE.