Dynamic User Competition and Miner Behavior in the Bitcoin Market

Fuente: arXiv
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Main Authors: Kamada, Yuichiro, Noda, Shunya
Format: Preprint
Published: 2025
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author Kamada, Yuichiro
Noda, Shunya
author_facet Kamada, Yuichiro
Noda, Shunya
contents We develop a dynamic model of the Bitcoin market where users set fees themselves and miners decide whether to operate and whom to validate based on those fees. Our analysis reveals how, in equilibrium, users adjust their bids in response to short-term congestion (i.e., the amount of pending transactions), how miners decide when to start operating based on the level of congestion, and how the interplay between these two factors shapes the overall market dynamics. The miners hold off operating when the congestion is mild, which harms social welfare. However, we show that a block reward (a fixed reward paid to miners upon a block production) can mitigate these inefficiencies. We characterize the socially optimal block reward and demonstrate that it is always positive, suggesting that Bitcoin's halving schedule may be suboptimal.
format Preprint
id arxiv_https___arxiv_org_abs_2502_15505
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dynamic User Competition and Miner Behavior in the Bitcoin Market
Kamada, Yuichiro
Noda, Shunya
Theoretical Economics
Cryptography and Security
We develop a dynamic model of the Bitcoin market where users set fees themselves and miners decide whether to operate and whom to validate based on those fees. Our analysis reveals how, in equilibrium, users adjust their bids in response to short-term congestion (i.e., the amount of pending transactions), how miners decide when to start operating based on the level of congestion, and how the interplay between these two factors shapes the overall market dynamics. The miners hold off operating when the congestion is mild, which harms social welfare. However, we show that a block reward (a fixed reward paid to miners upon a block production) can mitigate these inefficiencies. We characterize the socially optimal block reward and demonstrate that it is always positive, suggesting that Bitcoin's halving schedule may be suboptimal.
title Dynamic User Competition and Miner Behavior in the Bitcoin Market
topic Theoretical Economics
Cryptography and Security
url https://arxiv.org/abs/2502.15505