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Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies

Kohei Kawaguchi et al.

International Economic Review2026https://doi.org/10.1111/iere.70060article
AJG 4ABDC A*
Weight
0.50

Abstract

Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity 1 for stability, while ASERT remains stable for any elasticity and can be interpreted as a form of stochastic gradient descent. Interactions with other currencies can relax Bitcoin's stability requirements. Using a halving event, we estimate miners' hash supply elasticity and conduct counterfactual simulations. Our findings reveal Bitcoin's heavy reliance on low hash supply elasticity and interactions with smaller cryptocurrencies, urging an algorithm upgrade for stability.

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https://doi.org/https://doi.org/10.1111/iere.70060

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@article{kohei2026,
  title        = {{Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies}},
  author       = {Kohei Kawaguchi et al.},
  journal      = {International Economic Review},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1111/iere.70060},
}

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Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies

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Evidence weight

0.50

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

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