期刊
SAGE OPEN
卷 13, 期 2, 页码 -出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/21582440231178666
关键词
Bitcoin; cryptocurrencies; bubbles; stock markets; GSADF
In this paper, the effect of explosive behaviors in the Bitcoin market on the top 10 largest stock markets of developed and emerging countries was examined. The study found evidence of multiple bubble episodes, coinciding with the monetary policy actions of the FED and ECB. Using a GARCH model, it was found that these explosive behaviors have a negative impact on the variance of equity returns, although the magnitude and significance vary among stock indices.
In this paper, we examine the effect of explosive behaviors in the Bitcoin market on the top 10 largest stock markets of developed and emerging countries. The daily dataset, including the Dow Jones Industrial Index (DJIA), Nasdaq (NSQ), Shanghai Composite Index (SSE), Nikkei 225 (N225), Hang Seng Index (HSI), Shenzhen Composite Index (SZSE), Euronext Amsterdam Index (AEX), London Stock Exchange (LSE), Toronto Stock Exchange (TSX), and Bombay Stock Exchange (BSE), spans July 21, 2010, to December 9, 2022. We first investigate the existence of explosive price behaviors using the bubble detection test of Phillips and Shi and the results provide evidence of multiple bubble episodes, coinciding with the monetary policy actions of the FED and ECB. Then, we address the question of whether the explosive behaviors detected affect the variance of equity returns by employing a GARCH model. The impact is negative, albeit its magnitude and significance vary among stock indices.
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