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Home | Events Archive | Truth-telling in fully decentralized systems: An impossibility theorem and experimental evidence
Seminar

Truth-telling in fully decentralized systems: An impossibility theorem and experimental evidence


  • Series
  • Speakers
    Rodney Garratt (Bank for International Settlements, Switzerland, & UC Santa Barbara, US)
  • Field
    Finance, Finance
  • Location
    Tinbergen Institute, room 1.01
    Amsterdam
  • Date and time

    April 19, 2023
    12:45 - 14:00

Abstract
We show that truthful reporting about the realization of a publicly observed event cannot be implemented as a unique equilibrium in a completely decentralized environment. The result holds even if some individuals are compelled to tell the truth, regardless of economic incentives. We provide experimental evidence that supports our theoretical results. Our work provides a theoretical and empirical underpinning of the need for oracles and the related “oracle problem".

This is joint work with Gabriele Camera (Chapman University) and Cyril Monnet (University of Bern).