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Category: Publications

Contagion in Decentralized Lending Protocols: A Case Study of Compound

We study financial contagion in Compound V2, a decentralized lending protocol deployed on the Ethereum blockchain. We explain how to construct the balance sheets of Compound’s liquidity pools and use our methodology to characterize the financial network. Our analysis reveals that most users either borrow stablecoins or engage in liquidity mining. We then study the robustness of Compound through a series of stress tests, identifying the pools that are most likely to set off a cascade of defaults.

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2023-12-05
Publications

The Economics of Constant Function Market Makers

We use microeconomic theory to describe the inner workings of Constant Function Market Makers (CFMMs). We show that standard results from consumer theory apply in this new context, endowing us with powerful tools to characterize the optimal design of CFMMs. We employ them to analyze the externalities that traders and liquidity providers exert on each other when interacting through a CFMM. Liquidity providers reduce the execution costs by flattening the bonding curve on which trades are executed. Arbitrageurs impose an adverse selection cost on liquidity providers by unfavorably rebalancing their portfolio. We show that the strengths of these two externalities are pinned down by the curvature of the bonding curve and are inversely related to each other, thereby identifying the fundamental economic tradeoff that market designers have to address.

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2023-04-05
Publications

SoK: Constant Function Market Makers

We provide an overview of the academic literature on Automated Market Makers for Decentralized Exchanges. Our review puts an emphasis on contributions from researchers in economics and finance. We cover papers that study the optimal design of Automated Market Makers. Then we discuss models that leverage the insights from the literature on two-sided markets to characterize the equilibrium size of liquidity pools and the incentives of liquidity providers. Finally, we review recent research on the interactions between Miner Extractible Value and Decentralized Exchanges.

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2023-04-05
Publications

Proceedings of Tokenomics 2021

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.

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2022-10-01
Optimal Cryptocurrency Design : Seigniorage versus Transaction Fees | Blockchain@X
Publications

Optimal Cryptocurrency Design: Seigniorage versus Transaction Fees

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…

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2022-02-12
Publications

Proceedings of Tokenomics 2020

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.

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2021-11-01
Publication Tokens and Icos a Review of the Economic Literature | Blockchain@X
Publications

Tokens and Icos : a Review of the Economic Literature

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…

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2021-10-01
Publication multi client inner product oracle model | Blockchain@X
Publications

Multi-client Inner-product Functional Encryption in the Random-Oracle Model

Multi-client functional encryption (MCFE) is an extension of functional encryption (FE) in which the decryption procedure involves ciphertexts from multiple parties. In this paper, we consider MCFE schemes supporting encryption labels, which allow the encryptor to limit the amount of possible mix-and-match that can take place during the decryption. This…

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2021-02-01