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Research

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Interests

  • Game theory: learning dynamics, equilibrium concepts, oligopolistic competition.
  • Blockchains: cryptoeconomics, incentives.
  • Revenue management: pricing, unimodality conditions, comparative statics.
  • Strategic behavior: voting systems, queues.

Journal Publications

  1. S. Leonardos & C. Melolidakis, On the Mean Residual Life of Cantor-Type Distributions: Properties and Economic Applications, Austrian Journal of Statistics, to appear (2021). [arXiv]
  2. S. Leonardos, D. Reijsbergen & G. Piliouras, PRESTO: A Systematic Framework for Blockchain Consensus Protocols, IEEE Transactions in Engineering Management, (2020). [DOI]
  3. S. Leonardos & C. Melolidakis, On the  Equilibrium Uniqueness in Cournot Competition with Demand Uncertainty, The B.E. Journal of Theoretical Economics, (2020). [DOI]
  4. V. Buterin, D. Reijsbergen, S. Leonardos & G. Piliouras, Incentives in Ethereum’s Hybrid Casper Protocol, International Journal of Network Management, (2020). [DOI]
  5. S. Leonardos, D. Reijsbergen, G. Piliouras, Weighted Voting on the Blockchain: Improving Consensus in Proof of Stake Protocols, International Journal of Network Management, (2020). [DOI]
  6. S. Leonardos & C. Melolidakis, Endogenizing the cost parameter in Cournot oligopoly, International Game Theory Review, (2020). [DOI]
  7. C. Koki, S. Leonardos and G. Piliouras, Do Cryptocurrency Prices Camouflage Latent Economic Effects? A Bayesian Hidden Markov Approach, MDPI Future Internet, (2020). [DOI]
  8. S. Leonardos & C. Koki, Coalitions & Voting Power in the Greek Parliament of 2012: A Case Study, Homo Oeconomicus, (2019). [DOI]
  9. S. Leonardos & C. Melolidakis, On the commitment value and commitment optimal strategies in bimatrix games, International Game Theory Review, (2018). [DOI]

Conference Publications

  1. S. Leonardos, I. Sakos, C. Courcoubetis & G. Piliouras, Catastrophe by Design in Population Games: Destabilizing Wasteful Locked-in Technologies, [WINE] The 16th Conference on Web and Internet Economics (2020). [arXiv]
  2. Best paper award C. Koki, S. Leonardos and G. Piliouras, Do Cryptocurrency Prices Camouflage Latent Economic Effects? A Bayesian Hidden Markov Approach, The 3rd Annual Decentralized Conference, (2019). [DOI]
  3. Best paper award S. Leonardos, N. Leonardos and G. Piliouras, Oceanic Games: Centralization Risks and Incentives in Blockchain Mining,  in International Conference on Mathematical Research for Blockchain Economy, (2019). [DOI]
  4. Best paper award S. Leonardos, D. Reijsbergen and G. Piliouras, Weighted Voting on the Blockchain: Improving Consensus in Proof of Stake ProtocolsIEEE – International Conference on Blockchain and Cryptocurrency, (2019). [DOI]
  5. V. Buterin, D. Reijsbergen, S. Leonardos and G. Piliouras, Incentives in Ethereum’s Hybrid Casper Protocol, IEEE – International Conference on Blockchain and Cryptocurrency, (2019). [DOI]

Refereed Book Chapters

  1. S. Leonardos & C. Koki, Coalition Governments in Germany & Greece: Are they on the same path? German-Greek Yearbook of Political Economy vol.2 (invited), (2019). [article]
  2. C. Koki, S. Leonardos & C. Melolidakis, Comparative Statics via Stochastic Orderings in a Two-Echelon Market with Upstream Demand UncertaintyAIRO Springer Series, (2019). [DOI]
  3. C. Koki, S. Leonardos & C. Melolidakis, Measuring Market Performance with Stochastic Demand: Price of Anarchy and Price of Uncertainty, LNCS/LNAI Springer Series, (2018). [DOI]

Working Papers

  • Y. Dimitrakopoulos, A. Economou and S. Leonardos, Strategic customer behavior in a queueing system with alternating information structure, European Journal of Operational Research, r&r. [arXiv]
  • S. Leonardos & C. Melolidakis, Monopoly Pricing in Vertical Markets with Demand Uncertainty, submitted. [arXiv]
  • S. Leonardos & C. Melolidakis, A Class of Distributions for Linear Demand Markets. [arXiv]
  • C. Koki, S. Leonardos and G. Piliouras, A Peek into the Unobservable: Hidden States and Stylized Facts for the Bitcoin and Ether Price Series. [arXiv]

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