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Author

Shawn Yu

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2 papers indexed here

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Preprint Sep 2026

The Exact Welfare Guarantee of Fixed-Price Bilateral Trade

A seller and a buyer with independent private values can trade only at a posted price. We determine the worst case of this mechanism exactly: the best posted price always guarantees a $\beta_*=0.738024\ldots$ fraction of first-best welfare, where $\beta_*$ is given in closed form by the root of an explicit equation, th...

Ting-Yi Lin, Yi-Chen Shi, Ke Dong et al. · 0 citations
Preprint Sep 2026

When One Leak Pays Forever: Context Binding and the Price of Deterring Collusion

A coalition that deviates once can profit many times when what it sells keeps working. In a threshold-encrypted mempool, a leading defense against maximal extractable value (MEV), a quorum of the decryption committee that sells its decryption capability to a front-runner exposes every later block that the capability st...

Ting-Yi Lin, Shawn Yu, Ruo-Ran Lai et al. · 0 citations

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