Is Bitcoin Really Un-Tethered?

@article{Griffin2019IsBR,
  title={Is Bitcoin Really Un-Tethered?},
  author={John M. Griffin and Amin Shams},
  journal={ERN: Foreign Exchange Models (Topic)},
  year={2019}
}
This paper investigates whether Tether, a digital currency pegged to the U.S. dollar, influenced Bitcoin and other cryptocurrency prices during the 2017 boom. Using algorithms to analyze blockchain data, we find that purchases with Tether are timed following market downturns and result in sizable increases in Bitcoin prices. The flow is attributable to one entity, clusters below round prices, induces asymmetric autocorrelations in Bitcoin, and suggests insufficient Tether reserves before month… 
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