17 citations · 89 across the 27 of their papers we have counts for
12 papers · 1 filter
One-dimensional vs. Multi-dimensional Pricing in Blockchain Protocols
Aggelos Kiayias, Elias Koutsoupias, Giorgos Panagiotakos +1
Blockchain transactions consume diverse resources, foremost among them storage, but also computation, communication, and others. Efficiently charging for these resources is crucial…
Pool Formation in Oceanic Games: Shapley Value and Proportional Sharing
Aggelos Kiayias, Elias Koutsoupias, Evangelos Markakis +1
We study a game-theoretic model for pool formation in Proof of Stake blockchain protocols. In such systems, stakeholders can form pools as a means of obtaining regular rewards from…
Airdrop Games
Sotiris Georganas, Aggelos Kiayias, Paolo Penna
Launching a new blockchain system or application is frequently facilitated by a so called airdrop, where the system designer chooses a pre-existing set of potentially interested pa…
Balancing Participation and Decentralization in Proof-of-Stake Cryptocurrencies
Aggelos Kiayias, Elias Koutsoupias, Francisco Marmolejo-Cossio +1
Proof-of-stake blockchain protocols have emerged as a compelling paradigm for organizing distributed ledger systems. In proof-of-stake (PoS), a subset of stakeholders participate i…
Single-token vs Two-token Blockchain Tokenomics
Aggelos Kiayias, Philip Lazos, Paolo Penna
We study long-term equilibria that arise in the token monetary policy, or tokenomics, design of proof-of-stake (PoS) blockchain systems that engage utility maximizing users and val…
Blockchain Bribing Attacks and the Efficacy of Counterincentives
Dimitris Karakostas, Aggelos Kiayias, Thomas Zacharias
We analyze bribing attacks in Proof-of-Stake distributed ledgers from a game theoretic perspective. In bribing attacks, an adversary offers participants a reward in exchange for in…