This paper studies how transaction fees and seigniorage, equivalent to inflation in the cryptocurrency setting, affect miner incentives and trade congestion. Each cryptocurrency miner chooses how many new transactions to group into the next block of transactions that the miner competes to validate. The successful miner earns (i) transaction fees...
In STARK-like zero -knowledge proofs, like those of the Starware company, the major algorithmic and mathematical breakthrough which enables such great performance in applications is the invention of very efficient "low degree test" of univariate polynomials. Our work enables to perform such low degree test for multivariate polynomials, with the...
Tokenomics is an international forum for theory, design, analysis, implementation and applications of blockchains and smart contracts. The goal of the conference is to bring together economists, computer science researchers and practitioners working on blockchains in a unique program featuring outstanding invited talks and academic presentations.
Tokens and ICOs: A review of the Economic Literature, with Andrea Canidio, Vincent Danos and Stefania Marcassa, This article is a part of Principles of Blockchain Systems, Synthesis Lectures on Computer Science, 2021, Vol. 9, No. 2 About the book This book is the first to present the state of...
Published in the Journal of Economlical Economy We propose a model that uses the exchange rate of Bitcoin against the US dollar to predict the computing power of Bitcoin’s network. We show that free entry places an upper bound on mining revenues and explain how it can be identified. Calibrating...
It is widely believed that financial markets cannot be liquid without centralised processes to manage counterparty risk. We propose an alternative method for liquidity based on reversible and composable contracts run atop a blockchain. Novel instruments for zero-collateral intermediation can be defined.
We propose a framework for the fundamental valuation of utility tokens. Our model endogenizes the velocity of circulation of tokens and yields a pricing formula that is fully microfounded. According to our model, tokens are valuable because they have to be immediately accessible when the services are needed, a requirement...
2-Step Multi-Client Quadratic Functional Encryption from Decentralized Function-Hiding Inner-Product
In this paper, we present a multi-client quadratic functional encryption (MCQFE) scheme from function-hiding inner-product (FHIP). The main challenge in such construction is that all the clients require the access to the master secret key of the underlying FHIP scheme, which clearly breaches the security. To overcome this challenge, we...