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Research

Interests

  • Game theory: equilibrium concepts, oligopolies, 2-stage games.
  • Blockchains: cryptoeconomics, incentives.
  • Revenue management: pricing, unimodality conditions, comparative statics.
  • Strategic behavior: voting systems, queues.

Publications

  1. V. Buterin, D. Reijsbergen, S. Leonardos, G. Piliouras, Incentives in Ethereum’s Hybrid Casper Protocol, Proceedings of the IEEE – International Conference on Blockchain and Cryptocurrency (ICBC), forthcoming.
  2. S. Leonardos, D. Reijsbergen, G. Piliouras, Weighted Voting on the Blockchain: Improving Consensus in Proof of Stake Protocols, Proceedings of the IEEE – ICBC, forthcoming.
  3. S. Leonardos & C. Melolidakis, Endogenizing the cost parameter in Cournot oligopoly, International Game Theory Review, forthcoming. [arxiv]
  4. S. Leonardos & C. Koki, Coalitions & Voting Power in the Greek Parliament of 2012: A Case Study, Homo Oeconomicus, (2019). [journal]
  5. C. Koki, S. Leonardos & C. Melolidakis, Comparative Statics via Stochastic Orderings in a Two-Echelon Market with Upstream Demand UncertaintyAIRO Springer Series, (2019). [journal]
  6. S. Leonardos & C. Melolidakis, On the commitment value and commitment optimal strategies in bimatrix games, International Game Theory Review, (2018). [journal]
  7. C. Koki, S. Leonardos & C. Melolidakis, Measuring Market Performance with Stochastic Demand: Price of Anarchy and Price of Uncertainty, LNCS/LNAI Springer Series, (2018). [journal]

Working Papers

  • S. Leonardos & C. Melolidakis, A Class of Distributions for Linear Demand Markets, Naval Research Logistics, submitted. [arxiv]
  • S. Leonardos & C. Koki, Political Indicators in Germany and Greece: Evolving Political Systems, Distinct Paths and a Mutual Future. German-Greek Yearbook of Political Economy, submitted.
  • S. Leonardos, D. Reijsbergen, G. Piliouras, PRESTO: A Systematic Framework to Study Incentives in Blockchain Consensus Protocolsworking paper.
  • S. Leonardos & C. Melolidakis, Monopoly Pricing in a Vertical Market with Upstream Demand Uncertainty, working paper. [arxiv]
  • Y. Dimitrakopoulos, A. Economou and S. Leonardos, Strategic customer behavior in a queueing system with alternating information structure, [working paper 1][working paper 2].
  • J. Freixas & S. Leonardos, Some impossibility results on power indices, work in progress.

You may find my research statement here.

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