Examination of bitcoin prices and indexes of stock exchange by causement and cointegration tests: NYSE, FTSE, HKSE and BIST example

Throughout history, money has been found in many different forms depending on the conditions and needs of the period. The last form of money was developed with Bitcoin which is the first of its kind that entered our lives in 2008. Bitcoin, which is a crypto currency, has a system that can operate without the need for any central authority and can be transferred between people without the need for a third party. Bitcoin, wich has no equivalent, in time, it has been thought that it will replace traditional currencies with the spread of Bitcoin. Therefore, Bitcoin has been analyzed in many subjects both with its system and price. In the study, Bitcoin price and indices that belongs to NYSE US 100, FTSE 100, Hang Seng and BIST 100 were analyzed with econometric methods. The data created in the form of time series were tested with the stationarity test and were determined to be suitable for analysis. In order to examine whether there is a long-term relationship between Bitcoin and the indices, the Johansen cointegration test was applied and as a result of the test, it was determined that only Bitcoin and the NYSE US 100 index had a long-term relationship. In the next step of the analysis, the causality relationship of the cointegrated series was tested with the Granger causality test. According to the causality test results, it was concluded that there is a bidirectional causality relationship between the Bitcoin price and the NYSE US 100 index. Keywords: Cryptocurrency, Bitcoin, Exchange, Johansen Cointegration Test, Granger Causality Test