Monetary policy and Bitcoin

Abstract

I empirically study the impact of monetary policy on Bitcoin, and show that is has evolved over time. First, based on high-frequency data, the paper documents that Bitcoin prices did not immediately respond to US monetary policy announcements in the past; they only started doing so in late 2020, in a manner similar to other risky asset prices. Second, based on a structural VAR analysis I study the impact of monetary policy over longer horizons. I confirm the contractionary impact of a US monetary tightening in the post-2020 time period, but show that, historically, a US tightening used to persistently increase rather than decrease Bitcoin prices. To explain this result, I exploit spreads in Bitcoin valuations across currencies and blockchain data and link increased Bitcoin demand to East Asian economies subject to capital controls, particularly China. I discuss implications for the discussion of where demand for Bitcoin stems from: its recent responses to monetary policy confirm its role as a primarily speculative asset; yet, at least historically Bitcoin seems to have derived part if its value from enabling cross-border value transfers and capital flight.