{"title":"地缘政治不确定性对加密货币市场的溢出效应","authors":"Saliha Theiri","doi":"10.1108/emjb-01-2024-0021","DOIUrl":null,"url":null,"abstract":"<h3>Purpose</h3>\n<p>This study aims to examine the influence of geopolitical uncertainty on cryptocurrency markets (CM).</p><!--/ Abstract__block -->\n<h3>Design/methodology/approach</h3>\n<p>Utilizing two distinct sets of daily returns data spanning from January 1, 2019, to May 4, 2023, the analysis employs the geopolitical risk (GPR) index formulated by Caldara and Iacoviello (2022), which encapsulates two pivotal events: the COVID-19 pandemic and the Russia–Ukraine conflict. The cryptocurrency market (CM) encompasses Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC) and Dogecoin (DOGE). Employing the DCC-GARCH model and supplementing it with wavelet coherence analysis to discern perceptual distinctions between short- and long-term market reactions.</p><!--/ Abstract__block -->\n<h3>Findings</h3>\n<p>The main findings indicate that the GPR index clearly impacts the return of CM in the short-, mid- and long-term periods. BTC exhibited the highest volatility in response to changes in the GPR index. The cryptocurrency market offers a better diversification opportunity, and the impact of geopolitical events varies across time, with their direction and magnitude closely related to the specificity of the CM.</p><!--/ Abstract__block -->\n<h3>Practical implications</h3>\n<p>This research is helpful for financial market investors, portfolio and risk managers, make informed decisions about including cryptocurrencies in their investment portfolios to mitigate the risks in uncertainty period.</p><!--/ Abstract__block -->\n<h3>Originality/value</h3>\n<p>Cryptocurrency market volatility is treated weakly during the risk period. With advanced statistical method, this study links two important events: the COVID-19 pandemic and the Russia–Ukraine conflict and selects the top four cryptocurrencies constituting 80% of the market. This study examines the impact of geopolitical risk on the cryptocurrency market and shows that this market is considered a safe haven.</p><!--/ Abstract__block -->","PeriodicalId":46475,"journal":{"name":"EuroMed Journal of Business","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spillover effect of the geopolitical uncertainty on the cryptocurrency market\",\"authors\":\"Saliha Theiri\",\"doi\":\"10.1108/emjb-01-2024-0021\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3>Purpose</h3>\\n<p>This study aims to examine the influence of geopolitical uncertainty on cryptocurrency markets (CM).</p><!--/ Abstract__block -->\\n<h3>Design/methodology/approach</h3>\\n<p>Utilizing two distinct sets of daily returns data spanning from January 1, 2019, to May 4, 2023, the analysis employs the geopolitical risk (GPR) index formulated by Caldara and Iacoviello (2022), which encapsulates two pivotal events: the COVID-19 pandemic and the Russia–Ukraine conflict. The cryptocurrency market (CM) encompasses Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC) and Dogecoin (DOGE). Employing the DCC-GARCH model and supplementing it with wavelet coherence analysis to discern perceptual distinctions between short- and long-term market reactions.</p><!--/ Abstract__block -->\\n<h3>Findings</h3>\\n<p>The main findings indicate that the GPR index clearly impacts the return of CM in the short-, mid- and long-term periods. BTC exhibited the highest volatility in response to changes in the GPR index. The cryptocurrency market offers a better diversification opportunity, and the impact of geopolitical events varies across time, with their direction and magnitude closely related to the specificity of the CM.</p><!--/ Abstract__block -->\\n<h3>Practical implications</h3>\\n<p>This research is helpful for financial market investors, portfolio and risk managers, make informed decisions about including cryptocurrencies in their investment portfolios to mitigate the risks in uncertainty period.</p><!--/ Abstract__block -->\\n<h3>Originality/value</h3>\\n<p>Cryptocurrency market volatility is treated weakly during the risk period. With advanced statistical method, this study links two important events: the COVID-19 pandemic and the Russia–Ukraine conflict and selects the top four cryptocurrencies constituting 80% of the market. This study examines the impact of geopolitical risk on the cryptocurrency market and shows that this market is considered a safe haven.</p><!--/ Abstract__block -->\",\"PeriodicalId\":46475,\"journal\":{\"name\":\"EuroMed Journal of Business\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"EuroMed Journal of Business\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1108/emjb-01-2024-0021\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BUSINESS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"EuroMed Journal of Business","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1108/emjb-01-2024-0021","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BUSINESS","Score":null,"Total":0}
Spillover effect of the geopolitical uncertainty on the cryptocurrency market
Purpose
This study aims to examine the influence of geopolitical uncertainty on cryptocurrency markets (CM).
Design/methodology/approach
Utilizing two distinct sets of daily returns data spanning from January 1, 2019, to May 4, 2023, the analysis employs the geopolitical risk (GPR) index formulated by Caldara and Iacoviello (2022), which encapsulates two pivotal events: the COVID-19 pandemic and the Russia–Ukraine conflict. The cryptocurrency market (CM) encompasses Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC) and Dogecoin (DOGE). Employing the DCC-GARCH model and supplementing it with wavelet coherence analysis to discern perceptual distinctions between short- and long-term market reactions.
Findings
The main findings indicate that the GPR index clearly impacts the return of CM in the short-, mid- and long-term periods. BTC exhibited the highest volatility in response to changes in the GPR index. The cryptocurrency market offers a better diversification opportunity, and the impact of geopolitical events varies across time, with their direction and magnitude closely related to the specificity of the CM.
Practical implications
This research is helpful for financial market investors, portfolio and risk managers, make informed decisions about including cryptocurrencies in their investment portfolios to mitigate the risks in uncertainty period.
Originality/value
Cryptocurrency market volatility is treated weakly during the risk period. With advanced statistical method, this study links two important events: the COVID-19 pandemic and the Russia–Ukraine conflict and selects the top four cryptocurrencies constituting 80% of the market. This study examines the impact of geopolitical risk on the cryptocurrency market and shows that this market is considered a safe haven.
期刊介绍：
The EuroMed Journal of Business (EMJB) is the premier publication facilitating dialogue among researchers from Europe and the Mediterranean. It plays a vital role in generating and disseminating knowledge about various business environments and trends in this region. By offering an up-to-date overview of emerging business practices in specific countries, EMJB serves as a valuable resource for its readers.
As the official journal of the EuroMed Academy of Business, EMJB is committed to reflecting the economic growth seen in the European-Mediterranean region. It aims to be a focused and targeted business journal, highlighting environmental opportunities, threats, and marketplace developments in the area. Through its efforts, EMJB promotes collaboration and open dialogue among diverse research cultures and practices.
EMJB serves as a platform for debating and disseminating research findings, new research areas and techniques, conceptual developments, and practical applications across various business segments. It seeks to provide a forum for discussing new ideas in business, including theory, practice, and the issues that arise within the field.
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