{"title":"A new wolf in town? Pump-and-dump manipulation in cryptocurrency markets","authors":"Anirudh Dhawan, Tālis J Putniņš","doi":"10.1093/rof/rfac051","DOIUrl":null,"url":null,"abstract":"We investigate the puzzle of widespread participation in cryptocurrency pump-and-dump manipulation schemes. Unlike stock market manipulators, cryptocurrency manipulators openly declare their intentions to pump specific coins, rather than trying to deceive investors. Puzzlingly, people join in despite negative expected returns. In a simple framework, we demonstrate how overconfidence and gambling preferences can explain participation in these schemes. Analyzing a sample of 355 cases in six months, we find strong empirical support for both mechanisms. Pumps generate extreme price distortions of 65% on average, abnormal trading volumes in the millions of dollars, and large wealth transfers between participants.","PeriodicalId":48036,"journal":{"name":"Review of Finance","volume":"9 7","pages":""},"PeriodicalIF":5.6000,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Review of Finance","FirstCategoryId":"96","ListUrlMain":"https://doi.org/10.1093/rof/rfac051","RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BUSINESS, FINANCE","Score":null,"Total":0}
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Abstract
We investigate the puzzle of widespread participation in cryptocurrency pump-and-dump manipulation schemes. Unlike stock market manipulators, cryptocurrency manipulators openly declare their intentions to pump specific coins, rather than trying to deceive investors. Puzzlingly, people join in despite negative expected returns. In a simple framework, we demonstrate how overconfidence and gambling preferences can explain participation in these schemes. Analyzing a sample of 355 cases in six months, we find strong empirical support for both mechanisms. Pumps generate extreme price distortions of 65% on average, abnormal trading volumes in the millions of dollars, and large wealth transfers between participants.
期刊介绍：
The Review of Finance, the official journal of the European Finance Association, aims at a wide circulation and visibility in the finance profession. The journal publishes high-quality papers in all areas of financial economics, both established and newly developing fields: • •Asset pricing •Corporate finance •Banking and market microstructure •Law and finance •Behavioral finance •Experimental finance Review of Finance occasionally publishes special issues on timely topics, including selected papers presented at the meetings of the European Finance Association or at other selected conferences in the field.
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