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An Event Study of the Ethereum Transition to Proof-of-Stake

Author

Listed:
  • Elie Kapengut

    (Department of Economics, Rutgers University, 75 Hamilton Street, New Brunswick, NJ 08901, USA
    These authors contributed equally to this work.)

  • Bruce Mizrach

    (Department of Economics, Rutgers University, 75 Hamilton Street, New Brunswick, NJ 08901, USA
    These authors contributed equally to this work.)

Abstract

On 15 September 2022, the Ethereum network adopted a proof-of-stake (PoS) consensus mechanism. We study the impact on the network and competing platforms in a two month event window around the Beacon chain merge. We find that the transition to PoS has reduced energy consumption by 99.98%. Miners have not transformed into validators, and total block reward income (in USD) has fallen by 97%, though transaction fees (in ETH) for Ether have increased nearly 10%. The Herfindahl index for the top 10 is 1009; the network is 19% less concentrated after the merge. Ethereum supply growth has been deflationary since the merge. The time between consecutive blocks is now steady at 12 s and transactions per day are up 7.0%. On Polygon, Matic fees rose but token fees fell. Polygon also slows, processing 3.3% fewer transactions per day. Solana’s fees fall by $0.0003, and transactions per day are down 48%. Stablecoin transfer volumes fall on Ethereum and Polygon, but rise on Solana.

Suggested Citation

  • Elie Kapengut & Bruce Mizrach, 2023. "An Event Study of the Ethereum Transition to Proof-of-Stake," Commodities, MDPI, vol. 2(2), pages 1-15, March.
    • Handle: RePEc:gam:jcommo:v:2:y:2023:i:2:p:6-110:d:1110644
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    References listed on IDEAS

    as
    1. Bruce Mizrach, 2022. "Stablecoins: Survivorship, Transactions Costs and Exchange Microstructure," Papers 2201.01392, arXiv.org, revised Feb 2023.
    2. Anil Donmez & Alexander Karaivanov, 2022. "Transaction fee economics in the Ethereum blockchain," Economic Inquiry, Western Economic Association International, vol. 60(1), pages 265-292, January.
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