Proof-of-Stake Mining Games with Perfect Randomness

@article{Ferreira2021ProofofStakeMG,
  title={Proof-of-Stake Mining Games with Perfect Randomness},
  author={Matheus V. X. Ferreira and S. Matthew Weinberg},
  journal={Proceedings of the 22nd ACM Conference on Economics and Computation},
  year={2021}
}
Proof-of-Stake blockchains based on a longest-chain consensus protocol are an attractive energy-friendly alternative to the Proof-of-Work paradigm. However, formal barriers to "getting the incentives right" were recently discovered, driven by the desire to use the blockchain itself as a source of pseudorandomness. We consider instead a longest-chain Proof-of-Stake protocol with perfect, trusted, external randomness (e.g. a randomness beacon). We produce two main results. First, we show that a… 
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Dynamic posted-price mechanisms for the blockchain transaction-fee market
TLDR
This work proposes an alternative design - a dynamic posted- price mechanism - which uses not only block utilization but also observable bids from past blocks to compute a posted-price for subsequent blocks, and shows its potential to reduce price volatility.
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