13 papers
Freemium Is All You Need
Maxim Bichuch, Aviv Yaish
Free access to a generative AI (GenAI) service requires costly compute, yet can also produce data that improve future service quality. We study a service provider whose users diffe…
Order Auctions with Private Position Preferences
Ruijie Wang, Aviv Yaish
We study auctions where two positions are sold to unit-demand bidders with private heterogeneous order preferences: some are specialists} who value only the first position, while o…
Scheduling With Time Discounts
Yotam Gafni, Aviv Yaish
We study a \emph{financial} version of the online problem of scheduling weighted packets with deadlines. The main novelty is that, while prior works assume packets have \emph{fixed…
Perils of Parallelism: Transaction Fee Mechanisms under Execution Uncertainty
Sarisht Wadhwa, Aviv Yaish, Fan Zhang +1
Modern blockchains increasingly rely on parallel execution to improve throughput. We show several industry and academic transaction fee mechanisms (TFMs) struggle to simultaneously…
Insecurity Through Obscurity: Veiled Vulnerabilities in Closed-Source Contracts
Sen Yang, Kaihua Qin, Aviv Yaish +1
Most blockchains cannot hide the binary code of programs (i.e., smart contracts) running on them. To conceal proprietary business logic and to potentially deter attacks, many smart…
Modern Portfolio Theory in the Crypto-Wilderness
Ivan Vynyavskyy, Stefan Kitzler, Bernhard Haslhofer +1
Modern Portfolio Theory (MPT) prescribes how to maximise the return of an asset portfolio for a given level of risk. The optimal trade-off between return and variance defines the e…