{"title":"区块链技术和加密货币自愿披露的股价相关性","authors":"Ju-Chun Yen, Tawei Wang","doi":"10.1016/j.accinf.2021.100499","DOIUrl":null,"url":null,"abstract":"<div><p>This study examines the value relevance of blockchain and cryptocurrency disclosures in firms’ 10-K filings, which act as proxies for the firms’ involvement in this trending technology and its applications. Using textual analysis to quantify blockchain and cryptocurrency disclosures, the study first shows that these disclosures overall are value relevant. However, when the disclosures are further categorized into cryptocurrency and blockchain disclosures, the result only holds for blockchain disclosures, not for cryptocurrency disclosures. To further identify the topics and themes of these disclosures, we adopt latent Dirichlet allocation (LDA) topic modeling. Among the five topics that are identified from the blockchain and cryptocurrency disclosures through LDA (blockchain technology solutions, risk factors, general business descriptions, payment services, and bitcoin transactions), we find that only the disclosures about blockchain technology solutions and risk factors have positive value relevance, while the disclosures about bitcoin transactions are negative. The results indicate that investors positively value the involvement of blockchain technology applications in business operations or solutions and not cryptocurrency-related issues.</p></div>","PeriodicalId":47170,"journal":{"name":"International Journal of Accounting Information Systems","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.accinf.2021.100499","citationCount":"0","resultStr":"{\"title\":\"Stock price relevance of voluntary disclosures about blockchain technology and cryptocurrencies\",\"authors\":\"Ju-Chun Yen, Tawei Wang\",\"doi\":\"10.1016/j.accinf.2021.100499\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study examines the value relevance of blockchain and cryptocurrency disclosures in firms’ 10-K filings, which act as proxies for the firms’ involvement in this trending technology and its applications. Using textual analysis to quantify blockchain and cryptocurrency disclosures, the study first shows that these disclosures overall are value relevant. However, when the disclosures are further categorized into cryptocurrency and blockchain disclosures, the result only holds for blockchain disclosures, not for cryptocurrency disclosures. To further identify the topics and themes of these disclosures, we adopt latent Dirichlet allocation (LDA) topic modeling. Among the five topics that are identified from the blockchain and cryptocurrency disclosures through LDA (blockchain technology solutions, risk factors, general business descriptions, payment services, and bitcoin transactions), we find that only the disclosures about blockchain technology solutions and risk factors have positive value relevance, while the disclosures about bitcoin transactions are negative. The results indicate that investors positively value the involvement of blockchain technology applications in business operations or solutions and not cryptocurrency-related issues.</p></div>\",\"PeriodicalId\":47170,\"journal\":{\"name\":\"International Journal of Accounting Information Systems\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2021-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.accinf.2021.100499\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Accounting Information Systems\",\"FirstCategoryId\":\"91\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1467089521000014\",\"RegionNum\":3,\"RegionCategory\":\"管理学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BUSINESS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Accounting Information Systems","FirstCategoryId":"91","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1467089521000014","RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BUSINESS","Score":null,"Total":0}
Stock price relevance of voluntary disclosures about blockchain technology and cryptocurrencies
This study examines the value relevance of blockchain and cryptocurrency disclosures in firms’ 10-K filings, which act as proxies for the firms’ involvement in this trending technology and its applications. Using textual analysis to quantify blockchain and cryptocurrency disclosures, the study first shows that these disclosures overall are value relevant. However, when the disclosures are further categorized into cryptocurrency and blockchain disclosures, the result only holds for blockchain disclosures, not for cryptocurrency disclosures. To further identify the topics and themes of these disclosures, we adopt latent Dirichlet allocation (LDA) topic modeling. Among the five topics that are identified from the blockchain and cryptocurrency disclosures through LDA (blockchain technology solutions, risk factors, general business descriptions, payment services, and bitcoin transactions), we find that only the disclosures about blockchain technology solutions and risk factors have positive value relevance, while the disclosures about bitcoin transactions are negative. The results indicate that investors positively value the involvement of blockchain technology applications in business operations or solutions and not cryptocurrency-related issues.
期刊介绍：
The International Journal of Accounting Information Systems will publish thoughtful, well developed articles that examine the rapidly evolving relationship between accounting and information technology. Articles may range from empirical to analytical, from practice-based to the development of new techniques, but must be related to problems facing the integration of accounting and information technology. The journal will address (but will not limit itself to) the following specific issues: control and auditability of information systems; management of information technology; artificial intelligence research in accounting; development issues in accounting and information systems; human factors issues related to information technology; development of theories related to information technology; methodological issues in information technology research; information systems validation; human–computer interaction research in accounting information systems. The journal welcomes and encourages articles from both practitioners and academicians.
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