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Why Bitcoin and Ethereum Differ in Transaction Fees: A Theory of Blockchain Fee Policies

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  • Ndiaye, Abdoulaye

Abstract

Blockchains, the technology underlying cryptocurrencies, face large fluctuations in user demand and marginal costs. These fluctuations make effective fee policies necessary to manage transaction service allocation. This paper models the conflict between the blockchain designer and validators with monopoly power in choosing between price-setting and quantity-setting fee policies. The key determinants of the advantage of price-setting on blockchains are the validators' bargaining power, the elasticity of demand, the validators’ uncertainty about demand, and the covariance of demand and marginal costs. My results help account for differences between the fee policy designs of Bitcoin and Ethereum, the leading blockchains, and have implications for how they can be improved.

Suggested Citation

  • Ndiaye, Abdoulaye, 2024. "Why Bitcoin and Ethereum Differ in Transaction Fees: A Theory of Blockchain Fee Policies," CEPR Discussion Papers 18890, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:18890
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    More about this item

    Keywords

    Blockchain; Transaction costs; Fee policies; Bitcoin; Ethereum; Demand fluctuations; Price elasticity;
    All these keywords.

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • G00 - Financial Economics - - General - - - General

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